Automotive 14-S precision battery monitor, balancer and integrated protector with ASIL-D compliance

BQ79612-Q1,

BQ79614-Q1, BQ79616-Q1 and BQ79616H-Q1 provide high-accuracy cell voltage

measurements in less than 200µs for 12S, 14S and 16S battery modules in high-voltage

battery management systems in HEV/EV. The family of monitors offers different

channel options in the same package type, providing pin-to-pin compatibility and

supporting high reuse of the established software and hardware across any platform.

The integrated front-end filters enable the system to implement with simple, low

voltage rating, differential RC filters on the cell input channels. The integrated,

post-ADC, low-pass filters enable filtered, DC-like, voltage measurements for better

state of charge (SOC) calculation. This device supports autonomous internal cell

balancing with temperature monitoring to auto-pause and resume balancing to avoid an

overtemperature condition.