bq25871 - Texas Instruments

bq25871 Battery Switch Charger

The device is a 7-A battery switch charger with an integrated 10-bit ADC. The high-current battery switch charger is a 13-mΩ MOSFET with reverse current blocking designed for high efficiency and minimal voltage drop. The high-charge current capability of the device makes it ideal for smartphones, tablets, and other portable devices with large battery capacit.

Features

•1 Adapter Input Voltage Range: 3 V to 14 V
  – Allow up to 14-V Adaptor Voltage
• Highly Integrated 7-A Battery Switch
  – Integrated MOSFETs and Current Sensing
  – Low RDS(on) (13-mΩ) MOSFETs for High Current Operation
• Integrated High Accuracy ADC for System Monitor
  – VBUS, VBAT, VOUT, VDROP Voltage
  – Input and Battery Current
  – Battery and VBUS Connector Temperature
• Linear Regulation (LDO) Mode Operation
  – Four Linear Regulation Loops: IBUS, IBAT, VBAT and VOUT
  – Programmable Linear Regulation Thresholds
• Programmable Safety Protections
  – VBUS, VOUT, and VBAT Over Voltage Protections (OVP) .