封裝資訊
| 封裝 | 引腳 DSBGA (YFF) | 25 |
| 作業溫度範圍 (°C) -40 to 85 |
| 包裝數量 | 運送包裝 250 | SMALL T&R |
BQ25882 的特色
- 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-Ion output
- Selectable low power PFM mode for light load operation with out-of-audio option
- USB On-the-Go (OTG) with adjustable
output 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 low power PFM mode for light load operation with out-of-audio option
- Single Input to support USB input
adapters
- Supports 3.9-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 with 100-mA resolution) to support USB2.0, USB3.0 standard adapters
- Maximum power tracking by input voltage limit up-to 5.5 V
- Auto-detect USB SDP, CDP, DCP, and non-standard adapters
- Input current optimizer (ICO) to maximize input power without overloading adapters
- Highest battery discharge efficiency with 15-mΩ battery discharge MOSFET
- Integrated ADC for system monitoring (BUS voltage and current, BAT voltage, charge current, SYS voltage, and NTC and die temperature)
- Narrow VDC (NVDC) power path
management
- Instant-on works with no battery or deeply discharged battery
- Ideal diode operation in battery supplement mode
- Flexible autonomous and I2C mode for optimal system performance
- High integration includes all MOSFETs, current sensing 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
BQ25882 的說明
The BQ25882 is a highly-integrated 2-A switch-mode battery charge management 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 the device a truly flexible solution.