Packaging information
| Package | Pins WQFN (RTW) | 24 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the BQ25892
- High efficiency 5-A, 1.5-MHz Switch Mode buck charge
- 93% Charge efficiency at 2 A and 91% charge efficiency at 3-A charge current
- Optimize for high voltage input (9 V to 12 V)
- Low power PFM Mode for light-load operations
- USB On-the-Go (OTG) with adjustable output from 4.5 V to 5.5 V
- Selectable 500-kHz and 1.5-MHz Boost Converter with up-to 2.4-A output
- 93% Boost efficiency at 5 V at 1-A output
- Accurate Hiccup Mode overcurent protection
- Single input to support USB input and adjustable high voltage adapters
- Support 3.9-V to 14-V input voltage range
- Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
- Maximum power tracking by input voltage limit up-to 14 V for wide range of adapters
- Auto detect USB SDP, CDP, DCP, and non-standard adapters (BQ25890)
- Input Current Optimizer (ICO) to maximize input power without overloading adapters
- Resistance Compensation (IRCOMP) from charger output to cell terminal
- Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
- Integrated ADC for system monitor (voltage, temperature, charge current)
- Narrow VDC (NVDC) power path management
- Instant-on works with no battery or deeply discharged battery
- Ideal diode operation in Battery Supplement Mode
- BATFET Control to support Ship Mode, wake up, and full system reset
- Flexible autonomous and I2C Mode for optimal system performance
- High integration includes all MOSFETs, current sensing and loop compensation
- 12-µA Low battery leakage current to support Ship Mode
- High Accuracy
- ±0.5% Charge voltage regulation
- ±5% Charge current regulation
- ±7.5% Input current regulation
- Safety
- Battery temperature sensing for charge and Boost Mode
- Thermal regulation and thermal shutdown
Description for the BQ25892
The BQ25890, BQ25892 are highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.