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I2C Controlled, 2-cell, 2-A boost-mode battery charger with cell balancing

Availability: 2,825


Package | PIN: VQFN (RGE) | 24
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $4.88
10-24 $4.39
25-99 $4.09
100-249 $3.58
250-499 $3.36
500-749 $2.85
750-999 $2.41
1000+ $2.30


  • High-efficiency 2-A, 1.5MHz switch mode boost charger
    • 93.4% Charge efficiency at 5V adapter, 7.6-V battery, 1-Acharge
    • Optimized for USBinput and 2-cell Li-Ion battery
    • Selectable low power PFM mode for light loadoperation
  • Single input to support USB input adapters
    • Supports3.9 V – 6.2 V input voltage range with 20-V absolute maximum inputvoltage rating
    • Input current limit (500 mA to 3.3 A with 100-mA resolution) to support USB2.0, USB3.0 standardadapters
    • Maximum power tracking by input voltage limitup-to 5.5 V
  • Cell balancing and I2C control
    • Integrated FETs for balancing current up to 400mA
    • Automatic cell balancing with default registersetting
  • Input current optimizer (ICO) to maximize input power without overloading adapters
  • Integrated 16-bit ADC for system monitoring (BUS voltage and current, each cell voltage, charge current, and NTC and die temperature)
  • High integration includes all MOSFETs, current sensing and loop compensation
  • High accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±7.5%Input current regulation
  • Safety
    • Battery temperature sensing in charge
    • Thermal regulation andthermal shutdown

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Texas Instruments  BQ25887RGER

The BQ25887 is a highly-integrated 2-A boost switch-mode batterycharge managementdevice for 2-cell (2s) Li-Ion and Li-polymer battery. The BQ25887has I2C control with cell balancing, no OTG, and no power path.