US5781 Datasheet by Melexis Technologies NV

View All Related Products | Download PDF Datasheet
Meleiis \NSHRE: [\CMZEMNL US$781 E SE AAA-000 RE US$781 E UA AAA7000 BU US$781 L SE AAA-000 RE US$781 L UA AAA7000 BU/CA M
US5781
Unipolar Hall Switch Medium Sensitivity
Page 1 of 11
REVISION 016- 13 JUNE 2019
3901005781
Features and Benefits
Wide operating voltage range from 3.5V to
24V
Medium sensitivity
CMOS technology
Chopper-stabilized amplifier stage
Low current consumption
Open drain output
Thin SOT23 3L and flat TO-92 3L both RoHS
Compliant packages
Applications
Automotive, Consumer and Industrial
Solid-state switch
Interrupter
Current detector
Proximity detection
Ordering information
Product code
Temperature Code
Package Code
Option code
Packing form code
US5781
E
SE
AAA-000
RE
US5781
E
UA
AAA-000
BU
US5781
L
SE
AAA-000
RE
US5781
L
UA
AAA-000
BU/CA
Legend:
Temperature Code: L for Temperature Range -40°C to 150°C
E for Temperature Range -40°C to 85°C
Package Code: SE = TSOT-23L
UA = TO92-3L
Packing Form: BU = Bulk
RE = Reel
CA = Ammopack
Ordering example: US5781ESE-AAA-000-RE
1. Functional Diagram
Voltage
Regulator
VDD
GND
OUT
Chopper
Hall
Plate
Melex'ié'” ‘
US5781
Unipolar Hall Switch Medium Sensitivity
Page 2 of 11
REVISION 016- 13 JUNE 2019
3901005781
Contents
1. Functional Diagram ................................................................................................................................ 1
2. General Description ................................................................................................................................ 1
3. Glossary of Terms ................................................................................................................................... 3
4. Absolute Maximum Ratings .................................................................................................................... 3
5. Pin Definitions and Descriptions ............................................................................................................. 3
6. General Electrical Specifications ............................................................................................................. 4
7. Magnetic Specifications .......................................................................................................................... 4
8. Output Behaviour versus Magnetic Pole ................................................................................................ 4
9. Detailed General Description .................................................................................................................. 5
10. Unique Features ................................................................................................................................... 5
11. Performance Graphs ............................................................................................................................ 6
11.1. Typical Magnetic Switch Points vs VDD ............................................................................................. 6
11.2. Magnetic Switch Points vs Temperature ......................................................................................... 6
11.3. Typical Saturation Voltage vsTemperature (VDD=12V;Iout=20mA) ................................................ 6
12. Application Information ........................................................................................................................ 7
12.1. Typical Three-Wire Application Circuit ............................................................................................ 7
12.2. Two-Wire Circuit ............................................................................................................................... 7
12.3. Automotive and Harsh, Noisy Environments Three-Wire Circuit .................................................. 7
13. Application Comments ......................................................................................................................... 7
14. Standard information regarding manufacturability of Melexis products with different soldering
processes ............................................................................................................................................... 8
15. ESD Precautions ................................................................................................................................... 8
16. Package Information ............................................................................................................................ 9
16.1. SE Package (TSOT-3L) ....................................................................................................................... 9
16.2. UA Package (TO-92 flat) ................................................................................................................. 10
17. Contact ............................................................................................................................................... 11
18. Disclaimer ........................................................................................................................................... 11
\ \A\\ 0c ‘ MeleXIs
US5781
Unipolar Hall Switch Medium Sensitivity
Page 3 of 11
REVISION 016- 13 JUNE 2019
3901005781
3. Glossary of Terms
MilliTesla (mT), Gauss
Units of magnetic flux density:
1mT = 10 Gauss
RoHS
Restriction of Hazardous Substances
TSOT
Thin Small Outline Transistor (TSOT package) also referred with the Melexis
package code “SE
ESD
Electro-Static Discharge
BLDC
Brush-Less Direct-Current
4. Absolute Maximum Ratings
Parameter
Symbol
Value
Units
Supply Voltage
VDD
28
V
Supply Current
IDD
50
mA
Output Voltage
VOUT
28
V
Output Current
IOUT
50
mA
Storage Temperature Range
TS
-50 to 150
C
Maximum Junction
Temperature
TJ
165
C
Table 1: Absolute maximum ratings
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum-rated conditions for
extended periods may affect device reliability.
Operating Temperature Range
Symbol
Value
Units
Temperature SuffixE”
TA
-40 to 85
C
Temperature SuffixL”
TA
-40 to 150
C
5. Pin Definitions and Descriptions
SE Pin
UA Pin
Name
Type
Function
1
1
VDD
Supply
Supply Voltage pin
2
3
OUT
Output
Open Drain Output pin
3
2
GND
Ground
Ground pin
Table 2: Pin definitions and descriptions
SE package
UA package
Melex
US5781
Unipolar Hall Switch Medium Sensitivity
Page 4 of 11
REVISION 016- 13 JUNE 2019
3901005781
6. General Electrical Specifications
DC Operating Parameters TA = 25oC, VDD = 12V (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Supply Voltage
VDD
Operating
3.5
24
V
Supply Current
IDD
B < BRP
0.5
2.5
5
mA
Output Saturation Voltage
VDSon
IOUT = 20mA, B > BOP
0.3
0.5
V
Output Leakage Current
IOFF
B < BRP, VOUT = 24V
0.01
10
A
Output Rise Time
tr
RL = 1k, CL = 20pF
0.25
s
Output Fall Time
tf
RL = 1k, CL = 20pF
0.25
s
Maximum Switching Frequency
FSW
10
KHz
SE Package Thermal Resistance
RTH
Single layer (1S) Jedec board
301
°C/W
UA Package Thermal Resistance
RTH
200
°C/W
Table 3: Electrical specifications
7. Magnetic Specifications
DC Operating Parameters TA = 25oC, VDD = 12V (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Operating Point
BOP
7
12
15
mT
Release Point
BRP
3.5
7.5
10
mT
Hysteresis
BHYST
2
5
7
mT
Table 4: Magnetic specifications
8. Output Behaviour versus Magnetic Pole
DC Operating Parameters TA = -40oC to 150oC, VDD = 3.5V to 24V (unless otherwise specified)
Parameter
Test Conditions (SE)
OUT (SE)
OUT (UA)
South pole
B > BOP
High
Low
Null or weak magnetic field
B 0 or B < BRP
High
High
North pole
B > BOP
Low
High
Table 5: Output behaviour versus magnetic pole
North pole
OUT = low (VDSon)
South pole
OUT = low (VDSon)
SE package
UA package
I Melex'ié'
US5781
Unipolar Hall Switch Medium Sensitivity
Page 5 of 11
REVISION 016- 13 JUNE 2019
3901005781
9. Detailed General Description
Based on mixed signal CMOS technology, Melexis US5781 is a Hall-effect device with medium magnetic sensitivity. Its sensitivity
enables high accuracy in position sensing by the use of small air gap.
The chopper-stabilized amplifier uses switched capacitor technique to suppress the offset generally observed with Hall sensors
and amplifiers. The CMOS technology makes this advanced technique possible and contributes to smaller chip size and lower
current consumption than bipolar technology. The small chip size is also an important factor to minimize the effect of physical
stress.
This combination results in more stable magnetic characteristics and enables faster and more precise design.
The wide operating voltage from 3.5V to 24V, “L” and “E” operating temperature range and low current consumption make this
device especially suitable for automotive and solid state switch applications.
The output signal is open-drain type. Such output allows simple connectivity with TTL or CMOS logic by using a pull-up resistor
tied between a pull-up voltage and the device output.
10. Unique Features
The US5781 exhibits unipolar magnetic switching characteristics. Therefore, it operates only with one magnetic pole.
OUT = High
Flux density
Output level
BOP
BRP
0mT
OUT switches to Low
OUT = Low
OUT switches to High
Unipolar switch characteristic
The UA package is south pole active:
Applying a south magnetic pole greater than BOP facing the
branded side of the package switches the output low.
The SE package is north pole active:
Applying a north magnetic pole greater than BOP facing the
branded side of the package switches the output low.
Removing the magnetic field (B0) switches the output high.
The use of the opposite magnetic pole facing the branded side
does not affect the output state.
A magnetic hysteresis BHYST keeps BOP and BRP separated by a minimal value. This hysteresis prevents output oscillation near the
switching point.
mu wn Vusuu mm mu 1nn 5791 u u E : up E1“ g .. E n z [a BRP s . n 5 1n 15 m 25 SupplyVolbLgo, M 5791 Vnson An n m an 1zn mu m Temperature (no) 5791 u '1 _ 30F .— p 59 7 BRF 1:: m 1: E x s — B 3 E HYS 3 n 4“ H In B" 11" 1m Tempovamvo (no) Melexns '-
US5781
Unipolar Hall Switch Medium Sensitivity
Page 6 of 11
REVISION 016- 13 JUNE 2019
3901005781
11. Performance Graphs
11.1. Typical Magnetic Switch Points vs
VDD
11.2. Magnetic Switch Points vs
Temperature
11.3. Typical Saturation Voltage
vsTemperature
(VDD=12V;Iout=20mA)
Melex'i """ .II ‘_ +0 Lg; 4H7 'II I
US5781
Unipolar Hall Switch Medium Sensitivity
Page 7 of 11
REVISION 016- 13 JUNE 2019
3901005781
12. Application Information
13. Application Comments
For proper operation, a 100nF bypass capacitor should be placed as close as possible to the device between the VDD and ground
pin.
For reverse voltage protection, it is recommended to connect a resistor or a diode in series with the VDD pin.
When using a resistor, three points are important:
- the resistor has to limit the reverse current to 50mA maximum (VCC / R1 50mA)
- the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC R1.IDD)
- the resistor has to withstand the power dissipated in reverse voltage condition (PD = VCC
2 / R1)
When using a diode, a reverse current cannot flow and the voltage drop is almost constant (0.7V).
Therefore, a 100/0.25W resistor for 5V application and a diode for higher supply voltage are recommended. Both solutions
provide the required reverse voltage protection.
When a weak power supply is used or when the device is intended to be used in noisy environment, it is recommended that
figure 13.3 from the Application Information section is used.
The low-pass filter formed by R1 and C1 and the zener diode Z1 bypass the disturbances or voltage spikes occurring on the device
supply voltage VDD. The diode D1 provides additional reverse voltage protection.
12.1. Typical Three-Wire Application Circuit
C1
100nF
VDD
VSS
OUT
C2
4.7nF
RPU
10k
VCC VOUT
12.2. Two-Wire Circuit
Rb
RL*
IDD
IIN
IRIOUT
VDD
VDD
VSS
OUT
Note:
With this circuit, precise ON and OFF
currents can be detected using only two
connecting wires.
The resistors RL and Rb can be used to
bias the input current. Refer to the part
specifications for limiting values.
BRP : IOFF = IR + IDD = VDD/Rb + IDD
BOP : ION = IOFF + IOUT = IOFF + VDD/RL
12.3. Automotive and Harsh, Noisy Environments
Three-Wire Circuit
C1
100nF
VDD
VSS
OUT
C2
4.7nF
RPU
10k
VCC VOUT
R1
100 Ohms
Z1
D1
\I ‘3 \U ‘0 Mt : T flo Qe www.me‘exisxom ua‘it .as MeleXIs '
US5781
Unipolar Hall Switch Medium Sensitivity
Page 8 of 11
REVISION 016- 13 JUNE 2019
3901005781
14. Standard information regarding manufacturability of Melexis products with
different soldering processes
Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to
following test methods:
Reflow Soldering SMD’s (Surface Mount Devices)
IPC/JEDEC J-STD-020
Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices
(classification reflow profiles according to table 5-2)
EIA/JEDEC JESD22-A113
Preconditioning of Nonhermetic Surface Mount Devices Prior to Reliability Testing
(reflow profiles according to table 2)
Wave Soldering SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices)
EN60749-20
Resistance of plastic- encapsulated SMD’s to combined effect of moisture and soldering heat
EIA/JEDEC JESD22-B106 and EN60749-15
Resistance to soldering temperature for through-hole mounted devices
Iron Soldering THD’s (Through Hole Devices)
EN60749-15
Resistance to soldering temperature for through-hole mounted devices
Solderability SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices)
EIA/JEDEC JESD22-B102 and EN60749-21
Solderability
For all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature
gradient, temperature profile etc) additional classification and qualification tests have to be agreed upon with Melexis.
The application of Wave Soldering for SMD’s is allowed only after consulting Melexis regarding assurance of adhesive strength
between device and board.
Melexis is contributing to global environmental conservation by promoting lead free solutions. For more information on
qualifications of RoHS compliant products (RoHS = European directive on the Restriction Of the use of certain Hazardous
Substances) please visit the quality page on our website: http://www.melexis.com/quality.asp
15. ESD Precautions
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
Meleiié"""
US5781
Unipolar Hall Switch Medium Sensitivity
Page 9 of 11
REVISION 016- 13 JUNE 2019
3901005781
16. Package Information
16.1. SE Package (TSOT-3L)
Notes:
1.Dimension “D” and “E1” do not include mold flash
or protrusions. Mold flash or protrusion shall not
exceed 0.15mm on “D” and 0.25mm on “E” per
side.
2.Dimension “b” does not include dambar
protrusion.
3. All dimensions are in millimeters
Marking:
Top side : 7yww
7 = part number (US5781)
y = last digit of year
ww = calendar week
Hall plate location
Notes:
1. All dimensions are in millimeters
TOP VIEW
0.275
Side VIEW
1.417
0.891
A
A1
A2
D
E
E1
L
b
c
e
e1
min
0.025
0.85
2.80
2.60
1.50
0.30
0.30
0.10
0.95
BSC
1.90
BSC
max
1.00
0.10
0.90
3.00
3.00
1.70
0.50
0.45
0.20
Melex WW wwmm
US5781
Unipolar Hall Switch Medium Sensitivity
Page 10 of 11
REVISION 016- 13 JUNE 2019
3901005781
Marking:
1st Line : U57 - Part number (US5781)
2nd Line : yww
y - last digit of year
ww - calendar week
Notes:
1. All dimensions are in millimeters
0.43
2.0
1.4
Marked side
Notes:
1.Mold flashes and protrusion are not included.
2. Gate burrs shall not exceed 0.127mm on the top side.
16.2. UA Package (TO-92 flat)
A
D
E
F
J
L
L1
S
b1
b2
c
e
e1
min
2.80
3.90
1.40
0.00
2.51
14.0
1.55
0.63
0.35
0.43
0.35
2.51
1.24
max
3.20
4.30
1.60
0.20
2.72
15.0
1.75
0.84
0.44
0.52
0.44
2.57
1.30




min
5° MAX
5° REF
45°
REF
3° REF
max
Meleius Wm mcwiinwn www‘melexismom.
US5781
Unipolar Hall Switch Medium Sensitivity
Page 11 of 11
REVISION 016- 13 JUNE 2019
3901005781
17. Contact
For the latest version of this document, go to our website at www.melexis.com.
For additional information, please contact our Direct Sales team and get help for your specific needs:
Europe, Africa
Telephone: +32 13 67 04 95
Email : sales_europe@melexis.com
Americas
Telephone: +1 603 223 2362
Email : sales_usa@melexis.com
Asia
Email : sales_asia@melexis.com
18. Disclaimer
The information furnished by Melexis herein (“Information”) is believed to be correct and accurate. Melexis disclaims (i) any and all liability in connection with or arising out of the
furnishing, performance or use of the technical data or use of the product(s) as described herein (“Product”) (ii) any and all liability, including without limitation, special,
consequential or incidental damages, and (iii) any and all warranties, express, statutory, implied, or by description, including warranties of fitness for particular purpose, non-
infringement and merchantability. No obligation or liability shall arise or flow out of Melexis’ rendering of technical or other services.
The Information is provided "as is” and Melexis reserves the right to change the Information at any time and without notice. Therefore, before placing orders and/or prior to
designing the Product into a system, users or any third party should obtain the latest version of the relevant information to verify that the information being relied upon is current.
Users or any third party must further determine the suitability of the Product for its application, including the level of re liability required and determine whether it is fit for a
particular purpose.
The Information is proprietary and/or confidential information of Melexis and the use thereof or anything described by the In formation does not grant, explicitly or implicitly, to
any party any patent rights, licenses, or any other intellectual property rights.
This document as well as the Product(s) may be subject to export control regulations. Please be aware that export might require a prior authorization from competent authorities.
The Product(s) are intended for use in normal commercial applications. Unless otherwise agreed upon in writing, the Product(s) are not designed, authorized or warranted to be
suitable in applications requiring extended temperature range and/or unusual environmental requirements. High reliability applications, such as medical life-support or life-
sustaining equipment are specifically not recommended by Melexis.
The Product(s) may not be used for the following applications subject to export control regulations: the development, product ion, processing, operation, maintenance, storage,
recognition or proliferation of 1) chemical, biological or nuclear weapons, or for the development, production, maintenance o r storage of missiles for such weapons: 2) civil
firearms, including spare parts or ammunition for such arms; 3) defense related products, or other material for military use or for law enforcement; 4) any applications that, alone
or in combination with other goods, substances or organisms could cause serious harm to persons or goods and that can be used as a means of violence in an armed conflict or any
similar violent situation.
The Products sold by Melexis are subject to the terms and conditions as specified in the Terms of Sale, which can be found at https://www.melexis.com/en/legal/terms-and-
conditions.
This document supersedes and replaces all prior information regarding the Product(s) and/or previous versions of this document.
Melexis NV © - No part of this document may be reproduced without the prior written consent of Melexis. (2016)
ISO/TS 16949 and ISO14001 Certified

Products related to this Datasheet

MAGNETIC SWITCH UNIPOL TSOT23-3
MAGNETIC SWITCH UNIPOL TSOT23-3
MAGNETIC SWITCH UNIPOL TSOT23-3
MAGNETIC SWITCH UNIPOLAR TO92UA
MAGNETIC SWITCH UNIPOL TSOT23-3
MAGNETIC SWITCH UNIPOLAR TO92UA
MAGNETIC IC SWITCH TSOT-3
IC HALL EFFECT SWITCH NP TO-92
MAGNETIC IC SWITCH TSOT-3
IC HALL EFFECT SWITCH NP TO-92
MAGNETIC SWITCH UNIPOL TSOT23-3
MAGNETIC SWITCH UNIPOL TSOT23-3