Overview

Description

The ISL78600 Li-ion battery manager IC supervises up to 12 series-connected cells. The part provides accurate monitoring, cell balancing, and extensive system diagnostics functions. Three cell balancing modes are incorporated: Manual Balance mode, Timed Balance mode, and Auto Balance mode. The Auto Balance mode terminates balancing functions when a charge transfer value specified by the host microcontroller has been met. The ISL78600 communicates to a host microcontroller through an SPI interface and to other ISL78600 devices using a robust, proprietary, two-wire daisy chain system. The ISL78600 is offered in a 64 Ld TQFP package and is specified for operation at a temperature range of -40°C to +105°C.

Features

  • Up to 12-cell voltage monitors with support for Li-ion CoO2, Li-ion Mn2O4, and Li-ion FePO4 chemistries
  • Board level cell voltage measurement accuracy ±1.5mV
  • 13-bit cell voltage measurement
  • Pack voltage measurement accuracy ±100mV
  • 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
  • Hardwired and communications based fault notification
  • Integrated watchdog shuts down device if communication is lost
  • 2Mbps SPI AEC-Q100 qualified

Comparison

Applications

Applications

  • Hybrid vehicle battery pack

Documentation

Design & Development

Software & Tools

Software Downloads

Type Title Date
Software & Tools - Other EXE 2.85 MB
1 item

Boards & Kits

Boards & Kits

Models