16-S precision battery monitor, balancer and integrated protector with stacking interface

The BQ79616 device

provides high-accuracy cell voltage measurements in less than 200µs for 16-series battery

modules in high-voltage battery management systems in HEV/EV. The monitor 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.