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.


  • 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

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active TQFP Tray 160
Active TQFP Reel 1000

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL78610 Datasheet Datasheet PDF 1.79 MB
User Guides & Manuals
ISL78610EVKIT1Z User Guide Manual PDF 6.47 MB
Application Notes & White Papers
Low-Side FET White Paper 简体中文 White Paper PDF 263 KB
Putting Safety into Li-ion Battery Packs 简体中文 White Paper PDF 451 KB
Battery Management System Tutorial 简体中文 White Paper PDF 451 KB
AN1975: Use of Optocouplers in Battery Management Systems Application Note PDF 389 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
PCN19003 - Product Improvement - Design Change for the listed Renesas ISL78600 and ISL78610 Products Product Change Notice PDF 102 KB
Industrial Power Management Brochure 日本語 Brochure PDF 3.13 MB
Implementing Inter-Module Communications in EV Battery Systems Brochure PDF 354 KB
Optimizing Battery Accuracy for EVs and HEVs Brochure PDF 400 KB
BMS Installer Library EXE 2.85 MB

Boards & Kits

Part Number Title Type Company
ISL78610EVKIT1Z Multi-Cell Li-Ion Battery Monitor Evaluation Kit Evaluation