Texas Instruments bq25071/bq25071-Q1 Linear Battery Charger
Texas Instruments bq25071/bq25071-Q1 1A Single-Input Single-Cell Linear Battery Charger is a highly integrated, linear, LiFePO4 battery charger targeted at space-limited portable applications. It accepts power from either a USB port or AC adapter and charges a single-cell LiFePO4 battery with up to 1A of charge current. The 30V input rating with 10.5V input overvoltage protection supports low-cost unregulated adapters.
The bq25071 has a single power output that simultaneously charges the battery and powers the system. The input current is programmable from 100mA up to 1A using the ISET input or configurable for USB500. A 4.9V ±10% 50mA LDO is integrated into the IC for supplying low power external circuitry. The Texas Instruments bq25071-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- Single Cell LiFePO4 Charging Algorithm
- 30V Input Rating, With 10.5V Overvoltage Protection (OVP)
- 50mA Integrated Low Dropout Linear Regulator (LDO)
- Programmable Charge Current Through ISET and EN Terminals
- 7% Charge Current Regulation Accuracy
- Thermal Regulation and Protection
- Soft-Start Feature to Reduce Inrush Current
- Battery NTC Monitoring
- Charging Status Indication
Applications
- Smart Phones
- Mobile Phones
- Portable Media Players
- Low Power Handheld Devices
Datasheets
Application Schematic
Evaluation Module
Texas Instruments bq25071EVM-658 Evaluation Module (EVM)
A complete charger module for evaluating the QFN packaged bq25071/bq25071-Q1.
Publicado: 2014-09-19
| Actualizado: 2022-03-11