bq25882 2 A Boost-Mode Battery Charger

Texas Instruments' battery chargers are optimized for USB input and 2-cell Li-Ion output

Image of Texas Instruments' BQ25882 2 A Boost-Mode Battery ChargerTexas Instruments' bq25882 is a highly-integrated 2 A switch-mode battery charge management and system power-path management device for dual-cell Li-Ion and Li-polymer batteries. The I2C serial interface with charging and system settings makes the device an ultra-flexible solution.

Features
  • High-efficiency 2 A, 1.5 MHz switch-mode boost charger:
    • 92.5% charge efficiency at 7.6 V battery, 1 A charge
    • Optimized for USB input and 2-cell Li-Ion output
  • USB on-the-go (OTG) with adjustable output from 4.5 V to 5.5 V:
    • Buck converter with output up to 2 A
    • 94.5% efficiency at 5 V, 1 A output
    • Accurate constant current (CC) limit
    • Output short protection
  • Input current optimizer (ICO) to maximize input power without overloading adapters
  • Ultra-high battery discharge efficiency with 15 mΩ battery discharge MOSFET
  • Integrated ADC for system monitoring (BUS voltage and current, BAT voltage, charge current, SYS voltage, and NTC and die temperature)
  • Thermal regulation and thermal shutdown
  • Battery temperature sensing in charge and OTG buck mode
  • Single input to support USB input adapters:
    • Supports input voltage range of 3.9 V to 6.2 V with an input voltage rating of 20 V (maximum)
    • Input current limit (500 mA to 3.3 A with 100 mA resolution) to support USB2.0 and USB3.0 standard adapters
    • Auto-detect USB SDP, CDP, DCP, and non-standard adapters
  • Narrow VDC (NVDC) power-path management:
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in battery supplement mode
  • Flexible autonomous and I2C mode for optimal system performance
  • High accuracy:
    • Charge voltage regulation: ±0.4%
    • Charge current regulation: ±7.5%
    • Input current regulation: ±7.5%
  • High integration includes MOSFETs, current-sensing, and loop compensation
Applications
  • Wireless speakers
  • Digital cameras (DSC, DVC)
  • Mobile printers
  • Tablets
  • Electronic point-of-sales (ePOS)
  • Portable electronic devices

bq25882 Battery Chargers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC BATT PWR MGMT MULT 2C 25DSBGABQ25882YFFRIC BATT PWR MGMT MULT 2C 25DSBGA0View Details
IC BATT PWR MGMT MULT 2C 25DSBGABQ25882YFFTIC BATT PWR MGMT MULT 2C 25DSBGA60 - ImmediateView Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
DEVELOPMENT POWER MANAGEMENTBQ25882EVM-001DEVELOPMENT POWER MANAGEMENT5 - ImmediateView Details
EVAL MODULE INTERFACE BOARDEV2400EVAL MODULE INTERFACE BOARD1188 - Factory StockView Details
Published: 2019-05-30