概览
描述
The automotive grade ISL78610 12-cell battery pack monitor can be used as a stand-alone battery monitor or as a redundant back-up device in an ASIL compliant system. It supervises up to 12 series connected cells and features cell voltage and temperature monitoring along with system diagnostics. The ISL78610 communicates to a host microcontroller with an SPI interface and to other ISL78610 devices using a robust, proprietary, two-wire daisy chain system. The ISL78610 is offered in a 64 Ld TQFP package and is specified for operation at a temperature range of -40°C to +105°C.
特性
- Up to 12-cell voltage monitors with support for Li-ion CoO2, Li-ion Mn2O4, and Li-ion FePO4 chemistries
- Cell voltage measurement accuracy ±10mV
- 13-bit cell voltage measurement
- 14-bit pack voltage and temperature measurements
- Cell voltage scan rate of 19.5μs per cell (234μs to scan 12 cells)
- Internal and external temperature monitoring
- Up to four external temperature inputs
- Robust daisy chain communications system
- Integrated system diagnostics for all key internal functions
- Integrated watchdog shuts down device if communication is lost
- 2Mbps SPI
- AEC-Q100 qualified
