STMicroelectronics Li-Ion Battery Monitor IC, I2C, MSOP-8

This STMicroelectronics Li-Ion Battery Monitor IC features a coulomb counter and gas gauge in an 8-pin MSOP package. The device monitors critical parameters of a single-cell Li-Ion battery, including voltage, temperature, and current. It incorporates 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 30mohm external sense resistor, the battery current can reach up to 2.5A. The accumulator system provides a capacity up to ±7000mAh with a resolution of 0.2mAh. Programmable through the I2C interface, this IC facilitates straightforward gas gauge monitoring and device control.

Key Features

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

Designed for surface mount applications, this IC operates reliably across a temperature range of -40°C to 85°C. It has product dimensions of 43mm in height, 33mm in width, and 15mm in depth, with a weight of 1 gram.