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BQ25886 Boost-Mode Battery Charger for USB Input
Texas Instruments' standalone 2-cell, 2 A battery charger is ideal for applications such as wireless and smart speakers
Texas Instruments' BQ25886 is a highly-integrated 2 A boost switch-mode battery charge management and system PowerPath management which enables instant power-on and provides an accurate termination control device for 2-cell (2s) Li-Ion and Li-polymer batteries. The BQ25886 is a standalone solution with PowerPath and on-the-go boost (OTG).
Features
- 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 max 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
- Input current optimizer (ICO) to maximize input power without overloading the adapters
- High integration includes all MOSFETs, current-sensing, and loop compensation
- Safety:
- Battery temperature sensing in charge
- Thermal regulation and thermal shutdown
- Standalone function with PowerPath management:
- Ultra-high 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 a VSET pin supports 8.2 V, 8.4 V, 8.7 V, and 8.8 V
- Adjustable charge current with an ICHGSET pin supports 100 mA to 2,200 mA
- Adjustable input current limit with an ILIM pin
- High accuracy:
- Charge voltage regulation: ±0.5%
- Charge current regulation: ±5.0%
- Input current regulation: ±7.5%
Applications
- Wireless speakers
- Smart speakers
- EPOS printers
- Portable POS
- IP network cameras
BQ25886 Boost-Mode Battery Charger
| Image | Manufacturer Part Number | Description | Current - Charging | Programmable Features | Fault Protection | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|---|
 |  | BQ25886RGER | IC BATT CHG LI-ION 2CELL 24VQFN | Constant | Current | Over Current, Over Temperature, Over Voltage, Short Circuit | 1354 - Immediate | $290.74 | View Details |
Evaluation Boards
| Image | Manufacturer Part Number | Description | Function | Embedded | Utilized IC / Part | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|---|
|  | BQ25886EVM | EVAL BOARD FOR BQ25886 | Battery Charger | - | BQ25886 | 1 - Immediate | $11,070.50 | View Details |
|  | EV2400 | EVAL BOARD FOR MSP430F5529 | USB 2.0 to SMBus Bridge | Yes, MCU, 16-Bit | MSP430F5529 | 10 - Immediate | $22,252.82 | View Details |
Published: 2019-08-08
India