BQ25886 Texas instruments

BQ25886

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BQ25886

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Описание

The BQ25886 is a highly-integrated 2-A boost switch-mode battery charge management and system PowerPath management which enables instant power on and provides accurate termination control device for 2-cell (2s) Li-Ion and Li-polymer battery. The BQ25886 is a standalone solution with PowerPath and OTG.

High-efficiency 2-A, 1.5-MHz switch mode boost charger
- 93.4% Charge efficiency at 5-V adapter, 7.6-V battery, 1-A charge
- Optimized for USB input and 2-cell Li-Ion battery
Single input to support USB input adapters
- Supports 4.3-V to 6.2-V input voltage range with 20-V absolute maximum input voltage rating
- Input current limit (500 mA to 3.3 A) to support USB2.0, USB3.0 standard adapters
- Integrated USB D+/D- auto-detect USB SDP, CDP, DCP, and non-standard adapters
Standalone function with PowerPath management
- Highest battery discharge efficiency with 17-mΩ battery discharge MOSFET
- Narrow VDC (NVDC) PowerPath management
  - Instant-on works with no battery or deeply discharged battery
  - Ideal diode operation in battery supplement mode
- Adjustable charge voltage with VSET pin supports 8.2 V, 8.4 V, 8.7 V, and 8.8 V
- Adjustable charge current with ICHGSET pin supports 100 to 2200 mA
- Adjustable input current limit with ILIM pin
Input current optimizer (ICO) to maximize input power without overloading adapters
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 and thermal shutdown

Number of series cells	2
Charge current (max) (A)	2
Vin (max) (V)	6.2
Cell chemistry	Li-Ion/Li-Polymer
Battery charge voltage (min) (V)	8.2
Battery charge voltage (max) (V)	8.8
Absolute max Vin (max) (V)	20
Control topology	Switch-Mode Boost
Control interface	Standalone (RC-Settable)
Features	BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Power Path, USB D+/D-/BC1.2 integrated, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power)
Vin (min) (V)	3.9
Rating	Catalog
Operating temperature range (°C)	-40 to 85