Texas Instruments bq24232H锂离子电池充电器IC
Texas Instruments bq24232H锂离子充电器IC是高度集成的锂离子线性充电器和系统电源路径管理器件，适用于空间受限的便携式应用。器件通过USB端口或交流适配器工作，可提供25mA到500mA的充电电流。有输入电压保护的高输入电压范围支持低成本、非稳压适配器。USB输入电流限制精确性和启动序列使bq24232H满足USB-IF冲击电流规范。此外，输入动态功耗管理（VIN-DPM)可防止充电器损坏设计不佳或配置不正确的USB电源。
特性
- Fully Compliant USB Charger
- Selectable 100mA and 500mA Maximum Input Current
- 100mA Maximum Current Limit Ensures Compliance to USB-IF Standard
- Input-based Dynamic Power Management (VIN-- DPM) for Protection Against Poor USB Sources
- 28V Input Rating With Overvoltage Protection
- 4.35V Battery Regulation
- Integrated Dynamic Power-Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
- Supports up to 500mA Charge Current With Current Monitoring Output (ISET)
- Programmable Input Current Limit up to 500mA for Wall Adapters
- Programmable Termination Current (bq24232H)
- Programmable Precharge and Fast-Charge Safety Timers
- Reverse Current, Short-Circuit, and Thermal Protection
- NTC Thermistor Input
- Proprietary Start-Up Sequence Limits Inrush Current
- Status Indication - Charging/Done, Power Good
- Small 3mm × 3mm 16-Lead QFN Package
应用
- Bluetooth™ Devices
- Low-Power Handheld Devices
视频
发布日期: 2014-03-21
| 更新日期: 2022-03-11