Host communication to the BQ7961x-Q1 family of devices can be connected via the devices dedicated UART interface or through a communication bridge device, BQ79600. This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements. The inclusion of the isolated, bidirectional, daisy chain ports supports both capacitor- and transformer-based isolation, allowing the use of the most effective components for centralized or distribution architectures commonly found in the 圎V powertrain system. This device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements for better state of charge (SOC) calculation. The integrated front-end filters enable the system to implement with simple, low voltage rating, differential RC filters on the cell input channels.
#Power designer battery logger software
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. UART/SPI host interface/communication bridge device BQ79600-Q1īQ79612-Q1, BQ79614-Q1 and BQ79616-Q1 provide high-accuracy cell voltage measurements in less than 200 µs for 12S, 14S and 16S battery modules in high-voltage battery management systems in HEV/EV.Embedded fault signal and heartbeat through communication line.Isolated differential daisy chain communication with optional ring architecture.Built-in balancing thermal management with automatic pause and resume control.Built-in host-controlled hardware reset to emulate POR-like device reset.Supports bus bar connection and measurement.Integrated post-ADC configurable digital low-pass filters.Highly accurate cell voltage measurements within 128 µs for all cell channels.Built-in redundancy path for voltage and temperature diagnostics.
Standalone monitor 48 V system (BQ75614-Q1).Pin-package and software compatible device family:.
#Power designer battery logger iso
Documentation to aid ISO 26262 system design.Developed for functional safety applications.