1 Features
• ±1.5-mV ADC accuracy
• Built-in redundancy path for voltage and
temperature diagnostics
• Highly accurate cell voltage measurements within
128 μs for all cell channels
• Integrated post-ADC configurable digital low-pass
filters
• Bus bar connection and measurement support
• Built-in host-controlled hardware reset to emulate
POR-like device reset
• Supports internal cell balancing
– Balancing current at 240 mA
– Built-in balancing thermal management with
automatic pause and resume control
• Isolated differential daisy chain communication
with optional ring architecture
• Embedded fault signal and heartbeat through
communication line
• UART/SPI host interface/communication bridge
device BQ79600
• Built-in SPI controller

2 Applications
• Battery Management System (BMS) in hybrid and
electric powertrain systems
• Energy storage battery packs with Battery
Management Systems

3 Description
The BQ79616 device provides high-accuracy cell
voltage measurements in less than 200 μs 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.