BQ25622
Overview
The BQ25620 and BQ25622 are highly-integrat.
- High-efficiency, 1.5MHz, synchronous switching mode buck charger for single cell battery - >90% efficiency down to 25mA output current from 5V input - Charge termination from 10mA to 620mA, 10mA steps - Flexible JEITA profile for safe charging over temperature
- BATFET control to support shutdown, ship mode and full system reset - 1.5μA quiescent current in battery only mode - 0.15μA battery leakage current in ship mode - 0.1μA battery leakage current in shutdown
- Supports USB On-The-Go (OTG) - Boost mode supporting 3.84V to 9.6V output - >90% boost efficiency down to 100mA OTG current for 5V VBUS
- Supports a wide range of input sources - 3.9V to 18V wide input operating voltage range with 26V absolute maximum input voltage - Maximizes source power with input voltage regulation (VINDPM) and input current regulation (IINDPM) - VINDPM threshold automatically tracks battery voltage
- Efficient battery operation with 15mΩ BATFET
- Narrow VDC (NVDC) power path management - System instant-on with depleted or no battery - Battery supplement when adapter is fully loaded
- Flexible autonomous or I2C-controlled modes
- Integrated 12-bit ADC for voltage, current, temperature monitoring
- High accuracy - ±0.5% charge voltage regulation - ±5% charge current regulation - ±5% input current regulation
- Safety - Thermal regulation and thermal shutdown - Input, system, battery overvoltage protection - Battery, converter overcurrent protection - Charging safety timer
