Texas Instruments bq2510x Single Cell Li-Ion Battery Charger ICs
Texas Instruments bq2510x Single Cell Li-Ion Battery Charger ICs are highly integrated Li-Ion and Li-Pol linear chargers targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq2510x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.
The battery is charged in three phases: conditioning, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded. The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the Texas Instruments bq2510x. The fast charge current value is also programmable via an external resistor.
Features
- Supports Applications for Very Low Charge Currents - 10mA to 250mA
- Supports minimum 1mA Charge Termination Current
- Ultra-Low Battery Output Leakage Current - Maximum 75nA
- 30V Input Rating; with 6.5V Input Overvoltage Protection
- Input Voltage Dynamic Power Management
- Automatic Termination and Timer Disable Mode (TTDM) for Absent Battery Pack
- Available in Small 1.60mm × 0.90mm DSBGA Package
Applications
- Fitness Accessories
- Smart Watches
- Bluetooth® Headsets
- Low-Power Handheld Devices
Typical Application
Paskelbta: 2014-10-03
| Atnaujinta: 2022-03-11