Datasheet ISL78610 Multi-Cell Li-Ion Battery Manager The ISL78610 Li-ion battery manager IC supervises Features up to 12 series-connected cells. The part provides Up to 12-cell voltage monitors with support for accurate monitoring, cell balancing, and extensive Li-ion CoO , Li-ion Mn O , and Li-ion FePO4 2 2 4 system diagnostics functions. Three cell balancing chemistries modes are incorporated: Manual Balance mode, Board level cell voltage measurement accuracy Timed Balance mode, and Auto Balance mode. The 1.5mV Auto Balance mode terminates balancing functions when a charge transfer value specified by the host 13-bit cell voltage measurement microcontroller has been met. Pack voltage measurement accuracy 100mV The ISL78610 communicates to a host 14-bit pack voltage and temperature measurements microcontroller through an SPI interface and to other ISL78610 devices using a robust, proprietary, 2-wire Cell voltage scan rate of 19.5s per cell (234s to daisy chain system. scan 12 cells) Internal and external temperature monitoring The ISL78610 is offered in a 64 Ld TQFP package and is specified for operation at a temperature range Up to four external temperature inputs of -40C to +105C. Robust daisy chain communications system Applications Integrated system diagnostics for all key internal functions Hybrid Electric Vehicle (HEV), Plug-in Hybrid Electric Vehicle (PHEV), and Electric Vehicle (EV) Hardwired and communications based fault battery packs notification Electric motorcycle battery packs Integrated watchdog shuts down device if communication is lost Backup battery and energy storage systems requiring high accuracy management and 2Mbps SPI monitoring AEC-Q100 qualified Portable and semiportable equipment Related Literature For a full list of related documents, visit our website ISL78610 product page FN8830 Rev.4.00 Page 1 of 132 Jun.29.20ISL78610 TO OTHER DEVICES (OPTIONAL) ISL78610 ISL78610 VG2 VG2 VG1 VG1 DHi2 DLo2 DHi2 DHi1 DLo2 DLo1 SCLK DOUT DIN HOST CS MICRO DATA READY FAULT EN VG1 VG1 VG2 MONITOR BOARD (MASTER OR STANDALONE) MONITOR BOARD (DAISY CHAIN - OPTIONAL) Figure 1. Typical Application FN8830 Rev.4.00 Page 2 of 132 Jun.29.20