MCP73x23 Datasheet by Microchip Technology

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Mlcgcmp MCP73123/223 Features: Description:
2009-2013 Microchip Technology Inc. DS22191E-page 1
MCP73123/223
Features:
Complete Linear Charge Management Controller:
- Integrated Input Overvoltage Protection (OVP)
- Integrated Pass Transistor
- Integrated Current Sense
- Integrated Reverse Discharge Protection
Constant Current/Constant Voltage Operation
with Thermal Regulation
4.15V Undervoltage Lockout (UVLO)
18V Absolute Maximum Input with OVP:
- 6.5V - MCP73123
- 13V - MCP73223
High Accuracy Preset Voltage Regulation
Through Full Temperature Range (-5°C to +55°C):
- +0.5% - MCP73123
- +0.6% - MCP73223
Battery Charge Voltage Options:
- 3.6V - MCP73123
- 7.2V - MCP73223
Resistor Programmable Fast Charge Current:
-130 mA - 1100 mA
Preconditioning of Deeply Depleted Cells:
- Available Options: 10% or Disable
Integrated Precondition Timer:
- 32 Minutes or Disable
Automatic End-of-Charge Control:
- Selectable Minimum Current Ratio:
5%, 7.5%, 10% or 20%
- Elapse Safety Timer: 4 HR, 6 HR, 8 HR or
Disable
Automatic Recharge:
- Available Options: 95% or Disable
Factory Preset Charge Status Output:
- On/Off or Flashing
•Soft Start
Temperature Range: -40°C to +85°C
• Packaging: DFN-10 (3 mm x 3 mm)
Applications:
Low-Cost LiFePO4 Battery Chargers
Power Tools
•Toys
Backup Energy Storage Solutions
Description:
The MCP73123/223 is a highly integrated Lithium Iron
Phosphate (LiFePO4) battery charge management
controller for use in space-limited and cost-sensitive
applications. The MCP73123/223 provides specific
charge algorithms for LiFePO4 batteries to achieve
optimal capacity and safety in the shortest charging
time possible. Along with its small physical size, the low
number of external components makes the
MCP73123/223 ideally suitable for various
applications. The absolute maximum voltage, up to
18V, allows the use of MCP73123/223 in harsh
environments, such as low cost AC adapter or voltage
spikes from plugging/unplugging.
The MCP73123/223 employs a constant current/
constant voltage charge algorithm. The 3.6V per cell
factory preset reference voltage simplifies design with
2V preconditioning threshold. The fast charge,
constant current value is set with one external resistor
from 130 mA to 1100 mA. The MCP73123/223 also
limits the charge current based on die temperature
during high power or high ambient conditions. This
thermal regulation optimizes the charge cycle time
while maintaining device reliability.
The PROG pin of the MCP73123/223 also serves as
the enable pin. When high impedance is applied, the
MCP73123/223 will be in Standby mode.
The MCP73123/223 is fully specified over the ambient
temperature range of -40°C to +85°C. The MCP73123/
223 is available in a 10 lead DFN package.
Package Types (Top View)
MCP73123/223
3x3 DFN *
VBAT
VDD
VBAT
VSS
VSS
1
2
3
4
10
9
8
7STAT
PROGVDD
* Includes Exposed Thermal Pad (EP); see Table 3-1.
EP
11
NC 56NC
Lithium Iron Phosphate (LiFePO4) Battery Charge
Management Controller with Input Overvoltage Protection
M fli
MCP73123/223
DS22191E-page 2 2009-2013 Microchip Technology Inc.
Typical Application
TABLE 1: AVAILABLE FACTORY PRESET OPTIONS
TABLE 2: STANDARD SAMPLE OPTIONS
Charge
Voltage OVP Preconditioning
Charge Current
Preconditioning
Threshold
Precondition
Timer
Elapse
Timer
End-of-
Charge
Control
Automatic
Recharge
Output
Status
3.6V 6.5V Disable/10% 2V Disable /
32 Minimum
Disable/4 hr./
6 hr./8 hr.
5%/7.5%/
10%/20%
No /
Yes
Type 1/
Type 2
7.2V 13V Disable/10% 4V Disable /
32 Minimum
Disable/4 hr./
6 hr./8 hr.
5%/7.5%/
10%/20%
No /
Yes
Type 1/
Type 2
Note 1: IREG: Regulated fast charge current.
2: VREG: Regulated charge voltage.
3: IPREG/IREG: Preconditioning charge current; ratio of regulated fast charge current.
4: ITERM/IREG: End-of-Charge control; ratio of regulated fast charge current.
5: VRTH/VREG: Recharge threshold; ratio of regulated battery voltage, 0% or 95%. 0% = Disabled.
6: VPTH/VREG: Preconditioning threshold voltage.
7: Type 1: On/Off; Type 2: Flashing. Please refer to Table 5-2.
Part
Number
VREG OVP IPREG/IREG Precharge
Timer
Elapse
Timer
ITERM/IREG Auto Recharge
Threshold
(0% = Disabled)
VPTH/VREG Output
Status
MCP73123-22S/MF 3.6V 6.5V 10% 32 Min. 6 hr. 10% 95% 2V Type 1
MCP73123-22A/MF 3.6V 6.5V 10% 32 Min. 6 hr. 10% 0% 2V Type 1
MCP73223-C2S/MF 7.2V 13V 10% 32 Min. 6 hr. 10% 95% 4V Type 1
MCP73223-C2A/MF 7.2V 13V 10% 32 Min. 6 hr. 10% 0% 4V Type 1
Note 1: Customers should contact their distributor, representatives or field application engineer (FAE) for support and samples.
Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of
this document. Technical support is available through the web site at: http//support.microchip.com.
2: Contact your local Microchip sales office for alternative device options.
STAT
VDD
NC
5
3
1
2
PROG
8
7
9
10
4.7 µF +
-
1-Cell
LiFePO4
Battery
NC
6
4
1k
VDD
VBAT
VBAT
VSS
VSS
4.7 µF
1.15 k
MCP73123 Typical Application
AC-DC Adapter
2009-2013 Microchip Technology Inc. DS22191E-page 3
MCP73123/223
Functional Block Diagram
REFERENCE,
BIAS, UVLO,
AND SHDN
VREF (1.21V)
STAT
PROG
VBAT
VSS
DIRECTION
CONTROL
PRECONDITION
+
-
TERM
+
-
+
-
CA
CHARGE
+
-
+
-
VA
+
-
CURRENT
LIMIT
CHARGE
CONTROL,
TIMER,
AND
STATUS
LOGIC
VREF
VOREG
VOREG UVLO
VDD
Input OverVP
VDD
+
-
6.5V/13V
Thermal Regulation
TSD
+
-
110C
*Recharge VBAT
+
-
95% VREG
*Only available on selected options
G=0.001
MCP73123/223
DS22191E-page 4 2009-2013 Microchip Technology Inc.
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
VDD ................................................................................18.0V
VPROG ..............................................................................6.0V
All Inputs and Outputs w.r.t. VSS ............... -0.3 to (VDD+0.3)V
Maximum Junction Temperature, TJ............Internally Limited
Storage temperature .....................................-65°C to +150°C
ESD protection on all pins
Human Body Model (1.5 k in Series with 100 pF)4 kV
Machine Model (200pF, No Series Resistance) ..............300V
† Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all limits apply for VDD= [VREG(Typical) + 0.3V] to 12V,
TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG (Typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
Supply Input
Input Voltage Range VDD 4 16 V
Operating Supply Voltage VDD 4.2 6.5 VMCP73123
Operating Supply Voltage VDD 4.2 13.0 VMCP73223
Supply Current ISS — 4 5.5 µA Shutdown (VDD VBAT - 150 mV)
700 1500 µA Charging
30 100 µA Standby (PROG Floating)
50 150 µA Charge Complete; No Battery;
VDD VSTOP
Battery Discharge Current
Output Reverse Leakage
Current
IDISCHARGE 0.5 2µA Standby (PROG Floating)
0.5 2µA Shutdown (VDD VBAT,
or VDD VSTOP)
— 6 17 µA Charge Complete; VDD is present
Undervoltage Lockout
UVLO Start Threshold VSTART 4.10 4.15 4.25 V
UVLO Stop Threshold VSTOP 4.00 4.05 4.15 V
UVLO Hysteresis VHYS 100 mV
Overvoltage Protection
OVP Start Threshold VOVP 6.4 6.5 6.6 VMCP73123
OVP Start Threshold VOVP 12.8 13 13.2 VMCP73223
OVP Hysteresis VOVPHYS 150 mV
Voltage Regulation (Constant Voltage Mode)
Regulated Output Voltage VREG 3.582 3.60 3.618 V TA= -5°C to +55°C, IOUT = 50 mA
- MCP73123
Output Voltage Tolerance VRTOL -0.5 +0.5 % TA= -5°C to +55°C
- MCP73123
Regulated Output Voltage VREG 7.157 7.20 7.243 V TA= -5°C to +55°C, IOUT = 50 mA
- MCP73223
Output Voltage Tolerance VRTOL -0.6 +0.6 % TA= -5°C to +55°C
- MCP73223
Note 1: Not production tested. Ensured by design.
2009-2013 Microchip Technology Inc. DS22191E-page 5
MCP73123/223
Line Regulation VBAT/
VBAT)/VDD|
0.05 0.20 %/V VDD = [VREG(Typical)+1V] to 6V
- MCP73123
VDD = [VREG(Typical)+1V] to 12V
- MCP73223
IOUT = 50 mA
Load Regulation VBAT/VBAT| — 0.05 0.20 % IOUT = 50 mA - 150 mA
VDD = [VREG(Typical)+1V]
Supply Ripple Attenuation PSRR -46 dB IOUT = 20 mA, 10 Hz to 1 kHz
-30 dB IOUT = 20 mA, 10 Hz to 10 kHz
Battery Short Protection
BSP Start Threshold VSHORT 1.45 V MCP73123
BSP Start Threshold VSHORT 2.90 V MCP73223
BSP Hysteresis VBSPHYS 150 mV
BSP Regulation Current ISHORT 25 mA
Current Regulation (Fast Charge, Constant-Current Mode)
Fast Charge Current
Regulation
IREG 130 1100 mA TA=-5°C to +55°C
130 mA PROG = 10 k
1000 mA PROG = 1.1 k
Preconditioning Current Regulation (Trickle Charge Constant Current Mode)
Precondition Current Ratio IPREG//IREG 10 % PROG = 1 kto 10 k
TA=-5°C to +55°C
100 % No Preconditioning
Precondition Voltage
Threshold Ratio
VPTH
VPTH
1.9 2.0 2.1 VMCP73123, VBAT Low-to-High
3.8 4.0 4.2 VMCP73223, VBAT Low-to-High
Precondition Hysteresis VPHYS 100 mV VBAT High-to-Low (Note 1)
Charge Termination
Charge Termination
Current Ratio
ITERM/IREG 3.7 56.3 %PROG = 1 kto 10 k
TA=-5°C to +55°C
5.6 7.5 9.4
7.5 10 12.5
15 20 25
Automatic Recharge
Recharge Voltage
Threshold Ratio
VRTH/VREG 93 95 97 % VBAT High-to-Low
No Automatic Recharge
— 0
Pass Transistor ON-Resistance
ON-Resistance RDSON 350 — mVDD = 4.5V, TJ = 105°C (Note 1)
Status Indicator - STAT
Sink Current ISINK 20 35 mA
Low Output Voltage VOL 0.2 0.5 V ISINK = 4 mA
Input Leakage Current ILK 0.001 1AHigh Impedance, VDD on pin
PROG Input
Charge Impedance Range RPROG 1 10 k
Shutdown Impedance RPROG 200 — kImpedance for Shutdown
PROG Voltage Range VPROG 0 5 V
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all limits apply for VDD= [VREG(Typical) + 0.3V] to 12V,
TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG (Typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
Note 1: Not production tested. Ensured by design.
MCP73123/223
DS22191E-page 6 2009-2013 Microchip Technology Inc.
AC CHARACTERISTICS
TEMPERATURE SPECIFICATIONS
Automatic Power Down
Automatic Power Down
Entry Threshold
VPDENTRY VBAT +
10 mV
VBAT +
50 mV
V VDD Falling
Automatic Power Down Exit
Threshold
VPDEXIT — VBAT +
150 mV
VBAT +
250 mV
V VDD Rising
Thermal Shutdown
Die Temperature TSD 150 C
Die Temperature Hysteresis TSDHYS 10 C
Electrical Specifications: Unless otherwise specified, all limits apply for VDD= [VREG(Typical)+0.3V] to 6V, TA=-40°C to +85°C.
Typical values are at +25°C, VDD= [VREG(Typical)+1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
Elapsed Timer
Elapsed Timer Period tELAPSED 0 Hours Timer Disabled
3.6 4.0 4.4 Hours
5.4 6.0 6.6 Hours
7.2 8.0 8.8 Hours
Preconditioning Timer
Preconditioning Timer Period tPRECHG 0 Hours Disabled Timer
0.4 0.5 0.6 Hours
Status Indicator
Status Output turn-off tOFF 500 µs ISINK = 1 mA to 0 mA
(Note 1)
Status Output turn-on tON 500 ISINK = 0 mA to 1 mA
(Note 1)
Note 1: Not production tested. Ensured by design.
Electrical Specifications: Unless otherwise indicated, all limits apply for VDD = [VREG (Typical) + 0.3V] to 6V.
Typical values are at +25°C, VDD = [VREG (Typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
Temperature Ranges
Specified Temperature Range TA-40 +85 °C
Operating Temperature Range TJ-40 +125 °C
Storage Temperature Range TA-65 +150 °C
Thermal Package Resistances
Thermal Resistance, DFN-10 (3x3) JA 64 °C/W 4-Layer JC51-7 Standard Board,
Natural Convection
JC 12 °C/W
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all limits apply for VDD= [VREG(Typical) + 0.3V] to 12V,
TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG (Typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
Note 1: Not production tested. Ensured by design.
2009-2013 Microchip Technology Inc. DS22191E-page 7
MCP73123/223
2.0 TYPICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, VDD = [VREG (Typical) + 1V], IOUT = 50 mA and TA= +25°C, Constant Voltage mode.
FIGURE 2-1: Battery Regulation Voltage
(VBAT) vs. Supply Voltage (VDD).
FIGURE 2-2: Battery Regulation Voltage
(VBAT) vs. Supply Voltage (VDD).
FIGURE 2-3: Battery Regulation Voltage
(VBAT) vs. Supply Voltage (VDD).
FIGURE 2-4: Battery Regulation Voltage
(VBAT) vs. Ambient Temperature (TA).
FIGURE 2-5: Battery Regulation Voltage
(VBAT) vs. Ambient Temperature (TA).
FIGURE 2-6: Charge Current (IOUT) vs.
Programming Resistor (RPROG).
Note: The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
3.55
3.56
3.57
3.58
3.59
3.60
3.61
3.62
3.63
3.64
3.65
3.66
4.5 4.8 5.1 5.4 5.7 6.0
Supply Voltage (V)
Battery Regulation Voltage (V)
ILOAD = 150 mA
VBAT = 3.6V
TA = +25°C
3.55
3.56
3.57
3.58
3.59
3.60
3.61
3.62
3.63
3.64
3.65
4.5 4.8 5.1 5.4 5.7 6.0
Supply Voltage (V)
Battery Regulation Voltage (V)
ILOAD = 50 mA
VBAT = 3.6V
TA = +25°C
7.16
7.17
7.18
7.19
7.20
7.21
7.22
7.23
7.24
8.4 9.0 9.6 10.2 10.8 11.4 12.0
Supply Voltage (V)
Battery Regulation Voltage (V)
ILOAD = 50 mA
VBAT = 7.2V
TA = +25°C
7.16
7.17
7.18
7.19
7.20
7.21
7.22
7.23
7.24
-5 0 5 10 15 20 25 30 35 40 45 50 55
Ambient Temperature (°C)
Battery Regulation Voltage (V)
ILOAD = 50 mA
VDD = 9.2V
3.580
3.585
3.590
3.595
3.600
3.605
3.610
3.615
3.620
-5 0 5 10 15 20 25 30 35 40 45 50 55
Ambient Temperature (°C)
Battery Regulation Voltage (V)
ILOAD = 150 mA
VDD = 5.2V
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1234567891011121314151617181920
Programming Resistor (k)
Charge Current (mA)
VDD
= 5.2
TA = +25°C
MCP73123/223
DS22191E-page 8 2009-2013 Microchip Technology Inc.
TYPICAL PERFORMANCE CURVES (CONTINUED)
Note: Unless otherwise indicated, VDD = [VREG (Typical) + 1V], IOUT = 10 mA and TA= +25°C, Constant Voltage mode.
FIGURE 2-7: Charge Current (IOUT) vs.
Supply Voltage (V).
FIGURE 2-8: Charge Current (IOUT) vs.
Supply Voltage (V).
FIGURE 2-9: Charge Current (IOUT) vs.
Supply Voltage (V).
FIGURE 2-10: Charge Current (IOUT) vs.
Programming Resistor (RPROG).
FIGURE 2-11: Charge Current (IOUT) vs.
Ambient Temperature (TA).
FIGURE 2-12: Output Leakage Current
(IDISCHARGE) vs. Ambient Temperature (TA).
750
770
790
810
830
850
870
890
910
930
950
4.54.85.15.45.76.0
Supply Voltage (V)
Charge Current (mA)
RPROG = 1.33 k
TA = +25°C
475
495
515
535
555
575
595
615
635
655
675
4.5 4.8 5.1 5.4 5.7 6.0
Supply Voltage (V)
Charge Current (mA)
RPRO G = 2 k
TA = +25°C
150
170
190
210
230
250
270
290
310
330
350
4.5 4.8 5.1 5.4 5.7 6.0
Supply Voltage (V)
Charge Current (mA)
RPROG = 5 k
TA = +25°C
90
96
102
108
114
120
126
132
138
144
150
4.54.85.15.45.76.0
Supply Voltage (V)
Fast Charge (mA)
RPROG = 10 k
TA = +2C
Charge Current (mA)
750
770
790
810
830
850
870
890
910
930
950
-5 5 1525354555
Ambient Temperature (°C)
Charge Current (mA)
RPROG
= 1.33 k
VDD = 5.2V
Charge Current (mA)
-1.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
-5.0 5.0 15.0 25.0 35.0 45.0 55.0
Ambient Temperature (°C)
Discharge Current (uA)
VDD < VBAT
VDD < VSTOP
End of Charge
WMWWW WWW
2009-2013 Microchip Technology Inc. DS22191E-page 9
MCP73123/223
TYPICAL PERFORMANCE CURVES (CONTINUED)
Note: Unless otherwise indicated, VDD = [VREG (Typical) + 1V], IOUT = 10 mA and TA= +25°C, Constant Voltage mode.
FIGURE 2-13: Overvoltage Protection Start
(50 ms/Div).
FIGURE 2-14: Overvoltage Protection Stop
(50 ms/Div).
FIGURE 2-15: Load Transient Response
(ILOAD = 50 mA, Output Ripple: 100 mV/Div,
Output Current: 50 mA/Div, Time: 100 µs/Div).
FIGURE 2-16: Complete Charge Cycle
(1100 mAh LiFePO4 Battery).
FIGURE 2-17: Line Transient Response
(ILOAD = 10 mA, Source Voltage: 2V/Div, Output
Ripple: 100 mV/Div, Time: 100 µs/Div).
FIGURE 2-18: Line Transient Response
(ILOAD = 100 mA, Source Voltage: 2V/Div, Output
Ripple: 100 mV/Div, Time: 100 µs/Div).
Charge Current
Input Voltage
Battery Voltage
Charge Current
Input Voltage
Battery Voltage
Output Ripple (mV)
Output Current (mA)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0 10203040506070
Time (Minutes)
Battery Voltage (V)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Supply Current (A)
VDD = 5V
RPROG = 1 k
1100 mAh LiFePO4 Battery
Thermal Regulation
Source Voltage (V)
Output Ripple (mV)
Source Voltage (V)
Output Ripple (mV)
MCP73123/223
DS22191E-page 10 2009-2013 Microchip Technology Inc.
3.0 PIN DESCRIPTION
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1: PIN FUNCTION TABLE
3.1 Battery Management Input Supply
(VDD)
A supply voltage of [VREG (Typical) + 0.3V] to 6.0V is
recommended for MCP73123, while a supply voltage
of [VREG (Typical) + 0.3V] to 12.0V is recommended for
MCP73223. Bypass to VSS with a minimum of 1 µF.
The VDD pin is rated 18V absolute maximum to prevent
sudden rise of input voltage from spikes or low cost
AC-DC wall adapter.
3.2 Battery Charge Control Output
(VBAT)
Connect to the positive terminal of the battery. Bypass
to VSS with a minimum of 1 µF to ensure loop stability
when the battery is disconnected. The MCP73123 is
designed to provide 3.6V battery regulation voltage for
LiFePO4 batteries. Undercharge may occur if a typical
Li-Ion or Li-Poly battery is used.
3.3 No Connect (NC)
No connect.
3.4 Status Output (STAT)
STAT is an open-drain logic output for connection to an
LED for charge status indication in stand-alone
applications. Alternatively, a pull-up resistor can be
applied for interfacing to a host microcontroller. Refer to
Table 5-1 for a summary of the status output during a
charge cycle.
3.5 Battery Management 0V Reference
(VSS)
Connect to the negative terminal of the battery and
input supply.
3.6 Current Regulation Set (PROG)
The fast charge current is set by placing a resistor from
PROG to VSS during constant current (CC) mode.
The PROG pin also serves as a charge control enable
pin. Allowing the PROG pin to float or connecting the
pin to an impedance greater than 200 k will disable
the MCP73123/223 charger. Refer to Section 5.5,
"Constant Current Mode – Fast Charge", for details.
3.7 Exposed Pad (EP)
The Exposed Thermal Pad (EP) shall be connected to
the exposed copper area on the Printed Circuit Board
(PCB) to enhance thermal power dissipation.
Additional vias on the copper area under the
MCP73123/223 device will improve the performance of
heat dissipation and simplify the assembly process.
Connecting EP to VSS is recommended.
MCP73123/223
Symbol I/O Description
DFN-10
1, 2 VDD IBattery Management Input Supply
3, 4 VBAT I/O Battery Charge Control Output
5, 6 NC No Connection
7STAT OBattery Charge Status Output
8, 9 VSS Battery Management 0V Reference
10 PROG I/O Battery Charge Current Regulation Program and Charge Control Enable
11 EP Exposed Pad
2009-2013 Microchip Technology Inc. DS22191E-page 11
MCP73123/223
4.0 DEVICE OVERVIEW
The MCP73123/223 are simple, but fully integrated
linear charge management controllers. Figure 4-1
depicts the operational flow algorithm.
FIGURE 4-1: The MCP73123/223 Flow Chart.
VBAT < VPTH
Timer Expired
SHUTDOWN MODE
VDD < VUVLO
VDD < VPD
or
PROG > 200 k
STAT = High-Z
TEMPERATURE FAULT
No Charge Current
STAT = Flashing (Type 2)
STAT = High-Z (Type 1)
Timer Suspended
TIMER FAULT
No Charge Current
STAT = Flashing (Type 2)
STAT = High-Z (Type 1)
Timer Suspended
PRECONDITIONING MODE
Charge Current = IPREG
STAT = LOW
Timer Reset
Timer Enable
FAST CHARGE MODE
Charge Current = IREG
STAT = LOW
Timer Reset
Timer Enabled
CONSTANT VOLTAGE MODE
Charge Voltage = VREG
STAT = LOW
CHARGE COMPLETE MODE
No Charge Current
STAT = High-Z
Timer Reset
VBAT > VPTH
VBAT = VREG
VBAT < ITERM
VBAT > VPTH
VBAT < VRTH
VDD < VOVP
VDD > VOVP
OVERVOLTAGE PROTECTION
No Charge Current
STAT = High-Z
Timer Suspended
VDD > VOVP
VDD < VOVP
VDD > VOVP
VDD < VOVP
Timer Expired
TIMER FAULT
No Charge Current
STAT = Flashing (Type 2)
STAT = High-Z (Type 1)
Timer Suspended
Die Temperature > TSD
Die Temperature < TSDHYS
Charge Mode Resume
BATTERY SHORT PROTECTION
Charge Current = ISHORT
STAT = Flashing (Type 2)
STAT = High-Z (Type 1)
Timer Suspended
VBAT > VSHORT
VBAT < VSHORT
Charge Mode Resume
MCP73123/223
DS22191E-page 12 2009-2013 Microchip Technology Inc.
5.0 DETAILED DESCRIPTION
5.1 Undervoltage Lockout (UVLO)
An internal undervoltage lockout (UVLO) circuit
monitors the input voltage and keeps the charger in
Shutdown mode until the input supply rises above the
UVLO threshold. In the event a battery is present when
the input power is applied, the input supply must rise
approximately 150 mV above the battery voltage
before the MCP73123/223 becomes operational.
The UVLO circuit places the device in Shutdown mode
if the input supply falls to approximately 150 mV above
the battery voltage.The UVLO circuit is always active.
At any time, the input supply is below the UVLO
threshold or approximately 150 mV of the voltage at the
VBAT pin, the MCP73123/223 device is placed in a
Shutdown mode.
5.2 Overvoltage Protection (OVP)
An internal OVP circuit monitors the input voltage and
keeps the charger in Shutdown mode when the input
supply rises above the OVP threshold. The hysteresis
of OVP is approximately 150 mV for the MCP73123/
223 device.
The MCP73123/223 device is operational between
UVLO and OVP threshold. The OVP circuit is also
recognized as an overvoltage lockout (OVLO).
5.3 Charge Qualification
When the input power is applied, the input supply must
rise 150 mV above the battery voltage before the
MCP73123/223 becomes operational.
The automatic power down circuit places the device in
Shutdown mode if the input supply falls to within
+50 mV of the battery voltage.
The automatic circuit is always active. At any time the
input supply is within +50 mV of the voltage at the
VBAT pin, the MCP73123/223 is placed in a Shutdown
mode.
For a charge cycle to begin, the automatic power
down conditions must be met and the charge enable
input must be above the input high threshold.
5.3.1 BATTERY MANAGEMENT INPUT
SUPPLY (VDD)
The VDD input is the input supply to the MCP73123/
223. The MCP73123/223 automatically enters a
Power-down mode if the voltage on the VDD input falls
to within +50 mV of the battery voltage. This feature
prevents draining the battery pack when the VDD
supply is not present.
5.3.2 BATTERY CHARGE CONTROL
OUTPUT (VBAT)
The battery charge control output is the drain terminal
of an internal P-channel MOSFET. The MCP73123/223
provides constant current and voltage regulation to the
battery pack by controlling this MOSFET in the linear
region. The battery charge control output should be
connected to the positive terminal of the battery pack.
5.3.3 BATTERY DETECTION
The MCP73123/223 detects the battery presence by
monitoring the voltage at VBAT. The charge flow will
initiate when the voltage on VBAT is below the
VRECHARGE threshold. Refer to the Section 1.0,
"Electrical Characteristics", for VRECHARGE values.
When VBAT > VREG + Hysteresis, the charge will be
suspended or not started, depending on the current
charge status, to prevent overcharging.
5.4 Preconditioning
If the voltage at the VBAT pin is less than the
preconditioning threshold, the MCP73123/223 device
enters a Preconditioning mode. The preconditioning
threshold is factory set. Refer to Section 1.0,
"Electrical Characteristics", for preconditioning
threshold options.
In this mode, the MCP73123/223 device supplies 10%
of the fast charge current (established with the value of
the resistor connected to the PROG pin) to the battery.
When the voltage at the VBAT pin rises above the
preconditioning threshold, the MCP73123/223 device
enters the Constant Current (Fast Charge) mode.
5.4.1 TIMER EXPIRED DURING
PRECONDITIONING MODE
If the internal timer expires before the voltage threshold
is reached for Fast Charge mode, a timer fault is
indicated and the charge cycle terminates. The
MCP73123/223 device remains in this condition until
the battery is removed or input power is cycled. If the
battery is removed, the MCP73123/223 device enters
Standby mode, where it remains until a battery is rein-
serted.
5.5 Constant Current Mode – Fast
Charge
During the Constant Current mode, the programmed
charge current is supplied to the battery or load.
Note: In order to extend the battery cycle life, the
charge will initiate only when battery
voltage is below 3.4V per cell.
Note: The MCP73123/223 also offers options
with no preconditioning.
Note: The typical preconditioning timer for
MCP73123/223 is 32 minutes. The
MCP73123/223 also offers options with no
preconditioning timer.
2009-2013 Microchip Technology Inc. DS22191E-page 13
MCP73123/223
The charge current is established using a single
resistor from PROG to VSS. The program resistor and
the charge current are calculated using Equation 5-1
and Equation 5-2.
EQUATION 5-1:
EQUATION 5-2:
Table 5-1 provides commonly seen E96 (1%) and E24
(5%) resistors for various charge current to reduce
design time.
TABLE 5-1: RESISTOR LOOKUP TABLE
Constant Current mode is maintained until the voltage
at the VBAT pin reaches the regulation voltage, VREG
.
When Constant Current mode is invoked, the internal
timer is reset.
5.5.1 TIMER EXPIRED DURING
CONSTANT CURRENT – FAST
CHARGE MODE
If the internal timer expires before the recharge voltage
threshold is reached, a timer fault is indicated and the
charge cycle terminates. The MCP73123/223 device
remains in this condition until the battery is removed. If
the battery is removed or input power is cycled, the
MCP73123/223 device enters the Standby mode,
where it remains until a battery is reinserted.
5.6 Constant Voltage Mode
When the voltage at the VBAT pin reaches the
regulation voltage, VREG
, constant voltage regulation
begins. The regulation voltage is factory set to 3.6V for
a single cell, with a tolerance of ±0.5%; or 7.2V for dual
cells, with a tolerance of ±0.6%.
5.7 Charge Termination
The charge cycle is terminated when, during Constant
Voltage mode, the average charge current diminishes
below a threshold established with the value of 5%,
7.5%, 10% or 20% of fast charge current or internal
timer has expired. A 1 ms filter time on the termination
comparator ensures that transient load conditions do
not result in premature charge cycle termination. The
timer period is factory set and can be disabled. Refer to
Section 1.0, "Electrical Characteristics", for timer
period options.
5.8 Automatic Recharge
The MCP73123/223 device continuously monitors the
voltage at the VBAT pin in the Charge Complete mode.
If the voltage drops below the recharge threshold,
another charge cycle begins and current is once again
supplied to the battery or load. The recharge threshold
is factory set. Refer to Section 1.0, "Electrical
Characteristics", for recharge threshold options.
For the MCP73123/223 device with no recharge option,
the MCP73123/223 will go into Standby mode when the
termination condition is met. The charge will not restart
until at least one of the following conditions have been
met:
The battery is removed from the system and
inserted again
•V
DD is removed and plugged in again
RPROG is disconnected (or high impedance) and
reconnected
Charge
Current (mA)
Recommended
E96 Resistor ()
Recommended
E24 Resistor ()
130 10k 10k
150 8.45k 8.20k
200 6.20k 6.20k
250 4.99k 5.10k
300 4.02k 3.90k
350 3.40k 3.30k
400 3.00k 3.00k
450 2.61k 2.70k
500 2.32k 2.37k
550 2.10k 2.20k
600 1.91k 2.00k
650 1.78k 1.80k
700 1.62k 1.60k
750 1.50k 1.50k
800 1.40k 1.50k
850 1.33k 1.30k
900 1.24k 1.20k
950 1.18k 1.20k
1000 1.10k 1.10k
1100 1.00k 1.00k
IREG 1104 R 0.93
=
Where:
RPROG =kilo-ohms (k)
IREG = milliampere (mA)
RPROG 10 IREG 1104log 0.93

=
Where:
RPROG =kilo-ohms (k)
IREG = milliampere (mA)
Note: The MCP73123/223 also offer options
with no automatic recharge.
MCP73123/223
DS22191E-page 14 2009-2013 Microchip Technology Inc.
5.9 Thermal Regulation
The MCP73123/223 limits the charge current, based
on the die temperature. This thermal regulation
optimizes the charge cycle time while maintaining
device reliability. Figure 5-1 depicts the thermal
regulation for the MCP73123/223 device. Refer to
Section 1.0, "Electrical Characteristics", for thermal
package resistances and Section 6.1.1.2 “Thermal
Considerations”, for calculating power dissipation.
.
FIGURE 5-1: Thermal Regulation.
5.10 Thermal Shutdown
The MCP73123/223 suspends charge if the die
temperature exceeds +150°C. Charging will be
resumed when the die temperature has cooled by
approximately 10°C. This thermal shutdown is a
secondary safety feature in the event that there is a
failure within the thermal regulation circuitry.
5.11 Status Indicator
The charge status outputs are open-drain outputs with
two different states: Low (L) and High Impedance
(High-Z). The charge status outputs can be used to
illuminate LEDs. Optionally, the charge status outputs
can be used as an interface to a host microcontroller.
Table 5-2 summarizes the state of the status outputs
during a charge cycle.
5.12 Battery Short Circuit Protection
When a lithium iron phosphate battery is detected, an
internal battery short circuit protection circuit starts
monitoring the battery voltage. When VBAT is below the
typical 1.7V battery short circuit protection threshold
voltage per cell, the charging behavior is postponed. A
25 mA (typical) detection current is supplied for
recovering from the battery short circuit condition.
Preconditioning mode resumes when VBAT rises above
the battery short circuit protection threshold. The
battery voltage must rise approximately 150 mV above
the battery short circuit protection voltage before the
MCP73123/223 device becomes operational.
0
100
200
300
400
500
600
25 35 45 55 65 75 85 95 105 115 125 135 145
Junction Temperature (°C)
Charge Current (mA)
VDD = 5.2V
RPROG = 2 k
TABLE 5-2: STATUS OUTPUTS
CHARGE CYCLE
STATE STAT
Shutdown High-Z
Standby High-Z
Preconditioning L
Constant Current Fast
Charge
L
Constant Voltage L
Charge Complete - Standby High-Z
Temperature Fault 1.6 second 50% DC
Flashing (Type 2)
High-Z (Type 1)
Timer Fault 1.6 second 50% DC
Flashing (Type 2)
High-Z (Type 1)
Preconditioning Timer Fault 1.6 second 50% DC
Flashing (Type 2)
High-Z (Type 1)
”HR;
2009-2013 Microchip Technology Inc. DS22191E-page 15
MCP73123/223
6.0 APPLICATIONS
The MCP73123/223 is designed to operate with a
host microcontroller or in stand-alone applications.
The MCP73123/223 provides the preferred charge
algorithm for lithium iron phosphate cells, Constant
Current mode followed by Constant Voltage mode.
Figure 6-1 depicts a typical stand-alone application
circuit, while Figure 6-2 depicts the accompanying
charge profile.
FIGURE 6-1: Typical Application Circuit.
FIGURE 6-2: Typical Charge Profile for
Single-Cell LiFePO4 Battery.
STAT
VDD
NC
5
3
1
2
PROG
8
7
9
10
4.7 µF +
-
1-Cell
LiFePO4
Battery
NC
6
4
1k
VDD
VBAT
VBAT
VSS
VSS
4.7 µF
1.0 k
MCP73123 Typical Application
AC-DC Adapter
5V DC Output
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0 10203040506070
Time (Minutes)
Battery Voltage (V)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Supply Current (A)
VDD = 5V
RPROG = 1 k
1100 mAh LiFePO4 Battery
Thermal Regulation
MCP73123/223
DS22191E-page 16 2009-2013 Microchip Technology Inc.
6.1 Application Circuit Design
Due to the low efficiency of linear charging, the most
important factors are thermal design and cost, which
are a direct function of the input voltage, output current
and thermal impedance between the battery charger
and the ambient cooling air. The worst-case situation is
when the device has transitioned from the
Preconditioning mode to the Constant Current mode. In
this situation, the battery charger has to dissipate the
maximum power. A trade-off must be made between
the charge current, cost, and thermal requirements of
the charger.
6.1.1 COMPONENT SELECTION
Selection of the external components in Figure 6-1 is
crucial to the integrity and reliability of the charging
system. The following discussion is intended as a guide
for the component selection process.
6.1.1.1 Charge Current
The recommended fast charge current should be
obtained from the battery manufacturer. For
example, a 1000 mAh battery pack with 2C preferred
fast charge current has a charge current of 1000 mA.
Charging at this rate provides the shortest charge cycle
times without degradation of the battery pack
performance or life.
6.1.1.2 Thermal Considerations
The worst-case power dissipation in the battery
charger occurs when the input voltage is at the
maximum and the device has transitioned from the
Preconditioning mode to the Constant Current mode.
In this case, the power dissipation is calculated using
Equation 6-1.
EQUATION 6-1:
Power dissipation with a 5V, ±10% input voltage
source, 500 mA ±10% and preconditioning threshold
voltage at 2V is calculated using Equation 6-2.
EQUATION 6-2:
This power dissipation with the battery charger in the
DFN-10 package will raise the temperature
approximately 83C above room temperature.
6.1.1.3 External Capacitors
The MCP73123/223 is stable with or without a battery
load. In order to maintain good AC stability in the
Constant Voltage mode, a minimum capacitance of
1 µF is recommended to bypass the VBAT pin to VSS.
This capacitance provides compensation when there is
no battery load. In addition, the battery and
interconnections appear inductive at high frequencies.
These elements are in the control feedback loop during
Constant Voltage mode. Therefore, the bypass
capacitance may be necessary to compensate for the
inductive nature of the battery pack.
A minimum of 1 µF is recommended for the output
capacitor, and a minimum of 1 µF is recommended for
the input capacitor in typical applications.
TABLE 6-1: MLCC CAPACITOR EXAMPLE
Virtually any good quality output filter capacitor can be
used, independent of the capacitor’s minimum
Effective Series Resistance (ESR) value. The actual
value of the capacitor (and its associated ESR)
depends on the output load current. A 1 µF ceramic,
tantalum, or aluminum electrolytic capacitor at the
output is usually sufficient to ensure stability.
6.1.1.4 Reverse-Blocking Protection
The MCP73123/223 provides protection from a faulted
or shorted input. Without the protection, a faulted or
shorted input would discharge the battery pack through
the body diode of the internal pass transistor.
Note: Please consult with your battery supplier
or refer to the battery data sheet for the
preferred charge rate.
PowerDissipation VDDMAX VPTHMIN
IREGMAX
=
Where:
VDDMAX = the maximum input voltage
IREGMAX = the maximum fast charge current
VPTHMIN = the minimum transition threshold
voltage
MLCC
Capacitors
Temperature
Range Tolerance
X7R -55C to +125C±15%
X5R -55C to +85C ±15%
PowerDissipation 5.5V 2V550mA
1.925W==
2009-2013 Microchip Technology Inc. DS22191E-page 17
MCP73123/223
6.2 PCB Layout Issues
For optimum voltage regulation, place the battery pack
as close as possible to the device’s VBAT and VSS pins
to minimize voltage drops along the high-current-
carrying PCB traces.
If the PCB layout is used as a heat sink, adding multiple
vias in the heat sink pad can help conduct more heat to
the backplane of the PCB, thus reducing the maximum
junction temperature. Figure 6-3, Figure 6-4 and
Figure 6-5 depict a typical layout with PCB heatsinking.
FIGURE 6-3: Typical Layout (Top).
FIGURE 6-4: Typical Layout (Top Metal).
FIGURE 6-5: Typical Layout (Bottom).
MCP73X23EV-LFP
NNN
MCP73123/223
DS22191E-page 18 2009-2013 Microchip Technology Inc.
7.0 PACKAGING INFORMATION
7.1 Package Marking Information
XXXX
10-Lead DFN (3x3)
YYWW
NNN
Example:
1225
256
Standard *
Part Number Code
MCP73123-22SI/MF 77HI
MCP73223-C2SI/MF X7HI
Legend: XX...X Customer-specific information
Y Year code (last digit of calendar year)
YY Year code (last 2 digits of calendar year)
WW Week code (week of January 1 is week ‘01’)
NNN Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
*This package is Pb-free. The Pb-free JEDEC designator ( )
can be found on the outer packaging for this package.
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
3
e
3
e
77HI
10-Lead Plastic Dual Flat, No Lead Package (MF) - 3x3x0.9mm Body [DFN] (DATUM A) fi\\i (DATUM B) fl _ ”7/77. o/fl/o/ //////‘ 2X ///// Q 015 c ///// ,. 2X 1 2 I a-c "0T“ TOP VIEW // 0.10 C M. f SEATlNG PLANE (A3) — $ o.10®c A B NOTE 1 \ SIDE VIEW A1— //l a I | ’— EXPOSED PAD (DATUM A) (DATUM B) ‘ lDXK 7 Jbgfia W o.1c® c Alsl $ o 0.05® BOTTOM V IEW Microchlp Technology Drawmg No. cm-oaac Sheen of 2
2009-2013 Microchip Technology Inc. DS22191E-page 19
MCP73123/223
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
10-Lead Plastic Dual Flat, No Lead Package (MF) - 3x3x0.9mm Body [DFN] NOTE 2 Umls NHLLIMETERS D1mens1un le115 MIN | NONI | MAX Numbev at Pms N 10 Pm e u 50 BSC Overau Hetgnt A u at) o 90 1 no Standoff A1 0 on o 02 o us Contact Tmckness A3 0 20 REF Overs” Length D 3 00 BSC Exposed Pad Length D2 2 15 | 2 35 | 2 45 Overa1IW1dm E 3 00 BSC Exposed Pad Wmm E2 1 40 1 50 1.75 Contact Widtn b 0 15 o 25 0.30 Contact Length L o 30 0 40 0.50 ContaclrkosExposed Pad K o 20 , , Notes: 1 F1711 V15ua1mdexfeamre may vary,bulmu5|be1acated wllhm lhe hatched area 2. Package may have one or more exposed tie bars al ends 3. Package is saw s1ngu1ated A D1menslonlng and to1erancmg per ASME v14 5M ESC Easlc Dlmensmn Thenreflca‘ly axacl value Shown wmhuut lo‘arances REF: Relerence D1mension,usual1y wnhaut to1erance, for inlormauon purposes on1y. Microcmp Technology Drawmg Na. cotossc Sheel 2 an
MCP73123/223
DS22191E-page 20 2009-2013 Microchip Technology Inc.
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
10-Lead Plastic Dual Flat, No Lead Package (MF) - 3x3x0.9mm Body [DFN] C1 T2 S‘LK SCREEN RECOMMENDED LAND PATTERN Umts MlLL‘METERS D1mension ants MIN \ NOM \ MAX Contact Pitcn E 0.50 BSC 0pt1ona1 Center Fad Width W2 2.48 0pt1ona1 Center Pad Lengtn T2 1.55 Contact Pad Spacing (:1 3.10 Contact Pad Widtn (x10) x1 0.30 Contact Pad Length (x10) Y1 0.55 Distance Between Pads G 0.20 No1es' 1. Dimensmnmg and tolerancmg per ASME v14.5M BSC Baslc Dwmenswon Theoret‘ca‘ly exact value shown wwthout to‘erances Mtcrocmp Technology Drawmg No GOA-20638
2009-2013 Microchip Technology Inc. DS22191E-page 21
MCP73123/223
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
MCP73123/223
DS22191E-page 22 2009-2013 Microchip Technology Inc.
NOTES:
2009-2013 Microchip Technology Inc. DS22191E-page 23
MCP73123/223
APPENDIX A: REVISION HISTORY
Revision E (February 2013)
The following is the list of modifications:
1. Updated the Functional Block Diagram.
2. Updated the Temperature Specifications table.
3. Updated Section 3.6 “Current Regulation Set
(PROG)”.
4. Updated Section 5.3.3 “Battery Detection”.
5. Updated Equation 5-2.
Revision D (June 2011)
The following is the list of modifications:
1. Updated the land pattern drawing of the 3x3
DFN package on page 27.
Revision C (January 2011)
The following is the list of modifications:
1. Added two more part numbers in Table 2.
2. Updated the flowchart in Figure 4-1.
Revision B (January 2010)
The following is the list of modifications:
1. Updated the OVP value for MCP73223-C2S/MF
in Table 2.
2. Updated the Battery Short Protection values in
the DC Characteristics table.
Revision A (July 2009)
Original Release of this Document.
MCP73123/223
DS22191E-page 24 2009-2013 Microchip Technology Inc.
NOTES:
PART NO. v
2009-2013 Microchip Technology Inc. DS22191E-page 25
MCP73123/223
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, contact your local Microchip sales office.
Device: MCP73123: Single Cell Lithium Iron Phosphate Battery
Device
MCP73123T: Single Cell Lithium Iron Phosphate Battery
Device, Tape and Reel
MCP73223: Dual Cell Lithium Iron Phosphate Battery
Device
MCP73223T: Dual Cell Lithium Iron Phosphate Battery
Device, Tape and Reel
Temperature
Range:
I= -40C to +85C (Industrial)
Package: MF = Plastic Dual Flat No Lead, 3x3 mm Body (DFN),
10-Lead
PART NO. XXX
PackageTemperature
Range
Device
Examples:
a) MCP73123-22SI/MF: Single Cell Lithium Iron
Phosphate Battery Device
b) MCP73123T-22SI/MF: Tape and Reel,
Single Cell Lithium Iron
Phosphate Battery Device
a) MCP73223-C2SI/MF: Dual Cell Lithium Iron
Phosphate Battery Device
a) MCP73223T-C2SI/MF: Tape and Reel,
Dual Cell Lithium Iron
Phosphate Battery Device
Consult your local Microchip sales office for alternative
device options.
MCP73123/223
DS22191E-page 26 2009-2013 Microchip Technology Inc.
NOTES:
YSTEM <2>
2009-2013 Microchip Technology Inc. DS22191E-page 27
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
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OTHERWISE, RELATED TO THE INFORMATION,
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FITNESS FOR PURPOSE. Microchip disclaims all liability
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suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
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All other trademarks mentioned herein are property of their
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© 2009-2013, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-62076-998-0
Note the following details of the code protection feature on Microchip devices:
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
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YSTEM
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DS22191E-page 28 2009-2013 Microchip Technology Inc.
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Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
ASIA/PACIFIC
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
China - Hangzhou
Tel: 86-571-2819-3187
Fax: 86-571-2819-3189
China - Hong Kong SAR
Tel: 852-2943-5100
Fax: 852-2401-3431
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
China - Shenzhen
Tel: 86-755-8864-2200
Fax: 86-755-8203-1760
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
ASIA/PACIFIC
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
Japan - Osaka
Tel: 81-6-6152-7160
Fax: 81-6-6152-9310
Japan - Tokyo
Tel: 81-3-6880- 3770
Fax: 81-3-6880-3771
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
Taiwan - Kaohsiung
Tel: 886-7-213-7828
Fax: 886-7-330-9305
Taiwan - Taipei
Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
EUROPE
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
Worldwide Sales and Service
11/29/12

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