BQ25971 Overview
The BQ2597x is a 97% efficient, 8-A battery charging solution using a switched cap architecture. This architecture and the integrated FETs are optimized to enable a 50% duty cycle, allowing the cable current to be half the current delivered to the battery, reducing the losses over the charging cable as well as limiting the temperature rise in the application. BQ25970, BQ25971 SLUSD72B NOVEMBER 2017 REVISED APRIL...
BQ25971 Key Features
- 1 97% Efficient power stage for 8-A fast charge
- Patent pending switched cap charger architecture
- Reduces power loss across the cable
- Integrated programmable protection features for safe operation
- Input over-voltage protection (BUS_OVP)
- Input over-voltage with external OVP FET
- Battery over-voltage protection (BAT_OVP)
- Output over-voltage (VOUT_OVP)
- Switching MOSFET cycle by cycle current limit
- Battery temperature monitoring