All trademarks are the property of their respective owners.
DescriptionThe BQ25887RGER is ahighly-integrated 2-A boost switch-mode battery charge management device for 2-cell (2s) Li-Ion andLi-polymer battery. The BQ25887RGER has I2C control with cell balancingfor USB input.
Feature
- High-efficiency 2-A, 1.5-MHz switch mode boostcharger
- 93.4% Charge efficiency at 5-V 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 inputadapters
- Supports3.9-V to 6.2-V input voltage range with 20-V absolutemaximum input voltage rating
- Input current limit (500 mAto 3.3 A with 100-mA resolution) to support USB2.0,USB3.0 standard adapters
- 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 withoutoverloading 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, currentsensing 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
All trademarks are the property of their respective owners.
DescriptionThe BQ25887 is ahighly-integrated 2-A boost switch-mode battery charge management device for 2-cell (2s) Li-Ion andLi-polymer battery. The BQ25887 has I2C control with cell balancingfor USB input.
