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Standalone USB Li-Ion battery charger demonstration board based on the STw4102 and STM32F103C6

The STEVAL-ISB008V1 demonstration board is based on the STw4102 battery charger device and the STM32F103C6 microcontroller. The board is designed as a complete standalone battery charger, and includes a gas gauge to monitor battery capacity using five LEDs to represent different capacity levels. Two status LEDs indicate battery charging, discharging and some fault conditions.

By default, the firmware programmed in the demonstration board considers a battery capacity of 1200 mAh. This maximum capacity value is used to identify the percentage of available battery capacity, which is shown using the 5 LEDs.

The demonstration board firmware allows the user to vary the maximum capacity up to 2100 mAh, in steps of 300 mAH.

The STM32F103C6 microcontroller is used to control and monitor the STw4102 battery charger device.

All communication between the STw4102 and the STM32F103C6 is done through an I2C interface.

The STEVAL- ISB008V1 is equipped with both a USB and a DC adapter connector.

The board can supply a maximum battery charging current of 400 mA for a USB port, extending to 800 mA for a DC adapter.

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Data Brief

Key Features

  • The STw4102 Li-Ion battery charger IC:supports battery charging by USB or external DC adaptorincludes 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


图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB0925: Standalone USB Li-Ion battery charger demonstration board based on the STw4102 and STM32F103C6
1.1 114 KB

User Manual

描述 版本 大小
UM0678: STEVAL-ISB008V1, USB Li-Ion battery charger and gas gauge, based on the STw4102
1.2 1,281 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
Gerber files for STEVAL-ISB008V1 board
1.0 358 KB

Bill of Materials

描述 版本 大小
BOM for STEVAL-ISB008V1 board
1.0 10 KB

Schematic Pack

描述 版本 大小
STEVAL-ISB008V1 schematics
31 KB

Related Tools and Software

Related Tools and Software

产品型号 描述
STSW-ISB008 Setup for STEVAL-ISB008V1 board

样品 & 购买

产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISB008V1NRNDSTM32F103C6T6A; STW4102IQTBuy Direct60.45Distributor reported inventory date: 2014-04-18
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA20

(*) 建议零售价格仅用于预算,以美元为单位,每。的报价,以当地货币计算的价格,请联系您当地的 ST 销售办事处 或我们的 分销商
(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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