产品概览
The BQ24090DGQR from Texas Instruments is a standalone single-cell Li-Ion battery charger with 1.1 A charge current, power-path management, and USB input detection in a VQFN-10 package. It charges from USB or AC adapter and powers the system simultaneously.
主要规格
| 输入电压 | 4.35 V to 6.45 V |
| Charge Current | Up to 1.1 A (programmable) |
| Battery Voltage | 4.2 V (Li-Ion float) |
| Charge Accuracy | 1% |
| Power-Path | Yes (dynamic power management) |
| USB Input | 100 mA / 500 mA detection |
| 工作温度 | -40°C to +85°C |
| 包装 | VQFN-10 (2.5 x 2.5 mm) |
特点
- Integrated power-path management powers system while charging battery
- USB 100 mA / 500 mA input current limiting
- Programmable charge current up to 1.1 A
- Thermal regulation reduces charge current at high junction temperatures
- Battery temperature monitoring with NTC thermistor
- Charge status outputs for LED indication
应用
- Smartphones and tablets
- Portable medical devices
- Bluetooth headsets and wearables
- Portable instruments
- USB-powered consumer electronics