bq25890 Overview
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.
bq25890 Key Features
- 1 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