The BQ25883RGER is a highly-integrated 2-A boost switch-mode batterycharge management and system power path managementdevice for 2-cell (2s) Li-Ion and Li-polymer battery.TheBQ25883RGER has I2C control with OTG and power path.
Feature
- High-efficiency 2-A, 1.5MHz switch mode boost charger
- 93.4% Charge efficiency at 5V adapter, 7.6-V battery, 1-A charge
- Optimized for USB input and 2-cell Li-Ion battery
- Selectable low power PFM mode for light load operation
- Single input to support USB input adapters
- Supports 3.9 V – 6.2 V input voltage range with 20-V absolute maximum input voltage rating
- Input current limit (500 mA to 3.3 A with 100-mA resolution) to support USB2.0, USB3.0 standard adapters
- Maximum power tracking by input voltage limit up-to 5.5 V
- Integrated USB D+/D- auto-detect USB SDP, CDP, DCP, and non-standard adapters
- Power path management and I2C control
- Highest battery discharge efficiency with 17m battery discharge MOSFET
- Narrow VDC (NVDC) power path management
- Instant-on system on with no battery or deeply discharged battery
- Ideal diode operation in battery supplement mode
- USB on-the-go (OTG) with adjustable output from 4.5V to 5.5V
- Buck converter with up-to 2 A output
- 94% Efficiency at 5 V, 1 A output
- Accurate constant current (CC) regulation and output short protection
- Selectable low power PFM mode for light load operation with out-of-audio option
- 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, SYS voltage, 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 and OTG buck mode
- Thermal regulation and thermal shutdown
