STC3100IST

The STC3100IST is a battery monitor IC with coulomb counter/gas gauge in 8 pin MSOP package. The device 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 14bit A/D converter. With a typical 30mohm external sense resistor, the battery current can be up to 2.5A and the accumulator system provides a capacity up to +/-7000mAh with a resolution of 0.2mAh. The device is programmable through the I2C interface. Typical applications include cellular phones, PDA, MP3 players, cordless phones, digital cameras, USB appliances and Bluetooth devices.

• Battery voltage monitoring
• Internal temperature sensor
• Internal or external 32768Hz time base
• I2C interface for gas gauge monitoring and device control
• 32bytes RAM, 8byte unique device ID, one general purpose I/O
• 2.7V to 5.5V operating supply voltage on VCC