STEVAL-ISB008V1 Standalone USB Li-Ion battery charger demonstration board based on the STw4102 and STM32F103C6
The STEVAL-ISB008V1 demonstration board is based on the STw4102, a stand-alone constantcurrent constant-voltage (CCCV) linear charger dedicated for Li-Ion battery. This device allows dual charging capability using the main input adaptor up to 1A (wall adaptor, car adaptor) or USB cable up to 500 mA without external component. Upper 1 A charging is possible by adding just one external transistor. This demonstration board offers programmable fast charge current up to 1A with external resistor. A thermal regulation circuitry limits the charge current against the die high power dissipation or high ambient temperature. An end of charge output pin indicates the charge termination when the fast charge current drops below 10% of the programmed current value. The STw4102 contains an accurate gas gauge based on a 13 bit AD converter. External resistor is used between battery and ground to sense a charge/discharge current. With a typical 30 m Ω resistor, current can be up to 2.5 A.
技术特性
- The STw4102 Li-Ion battery charger IC:
- supports battery charging by USB or external DC adaptor
- includes an accurate gas gauge for monitoring battery capacity
- On-board STM32F103C6 microcontroller enumerates and controls the STw4102 for compliance with USB specifications
- Includes dual-color LEDs to indicate charging/discharging status
- Suitable as a standalone Li-Ion battery charger in various applications
- RoHS compliant
| 功能框图
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STEVAL-ISB008V1 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| STEVAL-ISB008V1 |
Active |
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1000 |
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DATA BRIEF
| 描述 |
版本 |
大小 |
| STEVAL-ISB008V1 : Standalone USB Li-Ion battery charger demonstration board based on the STw4102 and STM32F103C6 |
1 |
116KB |
USER MANUALS
| 描述 |
版本 |
大小 |
| UM0678: STEVAL-ISB008V1, USB Li-Ion battery charger and gas gauge, based on the STw4102 |
1 |
1285KB |
BILL OF MATERIALS
PCB LAYOUTS
