All trademarks are the property of their respective owners.
DescriptionThe BQ25882is a highly-integrated 2-A switch-mode battery chargemanagement 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 thedevice a truly flexible solution.
Feature
- 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-Ionoutput
- Selectable low power PFM mode for light loadoperation with out-of-audio option
- USB On-the-Go (OTG) with adjustableoutput from 4.5 V to 5.5 V
- Buck converter with up-to 2-A output
- 94.5% Efficiency at 5-V, 1-A output
- Accurate constant current (CC) limit
- Output short protection
- Selectable lowpower PFM mode for light load operation with out-of-audio option
- Single Input to support USB inputadapters
- Supports 3.9-V to 6.2-V input voltage range with 20-Vabsolute maximum input voltage 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
- Auto-detect USB SDP,CDP, DCP, and non-standard adapters
- Inputcurrent optimizer (ICO) to maximize input power without overloading adapters
- Highest battery discharge efficiency with 15-m? battery discharge MOSFET
- Integrated ADC for system monitoring (BUS voltageand current, BAT voltage, charge current, SYS voltage, and NTC and dietemperature)
- Narrow VDC (NVDC) power pathmanagement
- Instant-on works with no battery or deeply dischargedbattery
- Ideal diode operation in battery supplementmode
- Flexibleautonomous and I2C mode for optimal systemperformance
- High integration includes all MOSFETs, currentsensing and loop compensation
- High accuracy
- ±0.4% Charge voltage regulation
- ±7.5% Charge current regulation
- ±7.5%Input current regulation
- Safety
- Battery temperature sensing in charge and OTG buck mode
- Thermal regulation and thermal shutdown
All trademarks are the property of their respective owners.
DescriptionThe BQ25882is a highly-integrated 2-A switch-mode battery chargemanagement 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 thedevice a truly flexible solution.
