BQ25620 Description
The BQ25620 and BQ25622 are highly-integrated 3.5A switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer batteries. The solution is highly integrated with built-in current sensing, loop pensation, input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), lowside switching FET (LSFET, Q3), and battery FET (BATFET, Q4) between system and...
BQ25620 Key Features
- 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