BQ24045EVM
BQ24045EVM 評估模組
BQ24045EVM
概覽
The bq2404x series of devices are highly integrated Li-ion linear charger devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The bq2404x 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, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq24040/5. The fast charge current value is also programmable via an external resistor.
特點
- 1% Charge Voltage Accuracy
- 10% Charge Current Accuracy
- Pin Selectable USB 100mA and 500mA Maximum Input Current Limit
- Programmable Termination and Pre-charge Threshold
- 6.6V or 7.1V Input Over-Voltage Protection
- Input Voltage Dynamic Power Management
- Fixed 10 Hour Safety Timer
- OUT Short-Circuit Protection and ISET Short Detection
電池充電器 IC
技術文件
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 證書 | BQ24045EVM EU Declaration of Conformity (DoC) | 2019/1/2 | ||||
| Product overview | Battery Management Solutions for Wearable and Fitness Devices (Rev. C) | 2014/8/18 | ||||
| 使用指南 | 1-A Single-Input, Single-Cell Li-Ion Battery Charger | 2012/12/31 |