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BQ25883 ACTIVE

I2C 2 cell 2A Boost battery charger for USB input in a WQFN package with Power Path

BQ25883 2-Cell, 2-A Boost-Mode Battery Charger With Power Path, USB On-The-Go Boost (OTG) For USB Input datasheet (Rev. A) (pdf, 3.65 MB)

Parameters

Absolute Vin (safety rating)(Max)((V))	20
Rating	Catalog
Battery charge voltage(Min)(V)	6.8
Cell chemistry	Li-Ion/Li-Polymer
Operating Vin(Min)(V)	3.9
Operating Vin(Max)(V)	6.2
Topology	Switch-Mode Boost
Charge current(Max)(A)	2
Battery charge voltage(Max)(V)	9.2
Features	BAT temp thermistor monitoring (JEITA profile) IC thermal regulation ICO (Input Current Optimization) IINDPM (Input current limit) Input OVP Integrated ADC Integrated LDO Power Path USB C/PD compatible USB D+/D-/BC1.2 integrated USB OTG integrated VINDPM (Input voltage threshold to maximize adaptor power)
Control interface	I2C
Function	Charger
Number of series cells	2

Features & description

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 17mΩ 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

The BQ25883 is a highly-integrated 2-A boost switch-mode battery charge management and system power path management device for 2-cell (2s) Li-Ion and Li-polymer battery. The BQ25883 has I²C control with OTG and power path.