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STC3100 Datasheet(PDF) 1 Page - STMicroelectronics |
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STC3100 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 21 page  January 2009 Rev 1 1/21 21 STC3100 Battery monitor IC with Coulomb counter/gas gauge Features ■ Battery voltage monitoring ■ Internal temperature sensor ■ Coulomb counter with 12/14-bit AD converter, +/- 80 mV input voltage range ■ Internal or external 32768 Hz time base ■ I2C interface for gas gauge monitoring and device control ■ 32-RAM bytes ■ 8-byte unique device ID ■ One general-purpose I/O Applications ■ Cellular phones, PDA, MP3 players, cordless phones ■ Digital cameras, USB appliances, Bluetooth devices Description The STC3100 monitors the critical parameters of a single-cell Li-Ion battery (voltage, temperature and current) and includes hardware functions to implement a gas gauge for battery charge monitoring, based on a programmable 12- to 14-bit A/D converter. With a typical 30 milliOhms external sense resistor, the battery current can be up to 2.5 A and the accumulator system provides a capacity up to +/-7000 mAh with a resolution of 0.2 mAh. The device is programmable through the I2C interface. MiniSO-8 (Plastic micropackage) DFN8 3x3 (Plastic micropackage) 1 2 3 4 5 6 7 8 IO0 SDA SCL GND VIN ROSC VCC CG Pin connections (top view) www.st.com |
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