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.


  • 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


  • Hybrid vehicle battery pack

Product Options

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


Title language Type Format File Size Date
Datasheets & Errata
ISL78600 Datasheett Datasheet PDF 2.03 MB
User Guides & Manuals
ISL78600EVKIT1Z User's Manual Manual PDF 3.29 MB
Application Notes & White Papers
AN1975: Use of Optocouplers in Battery Management Systems Application Note PDF 389 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 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
PCN19003 - Product Improvement - Design Change for the listed Renesas ISL78600 and ISL78610 Products Product Change Notice PDF 102 KB
PCN16033 - Design and Mold Compound Change for the Intersil ISL78600ANZ* Products Product Change Notice PDF 1.42 MB
PCN15024 - This notice is to advise our customers of a minor silicon design revision for the ISL78600ANZ and ISL78600ANZ-T products only. Product Change Notice PDF 208 KB
PCN15003 - ISL78600 - DS change (std product only) Product Change Notice PDF 393 KB
PCN14034 - TestSiteChangefortheListedIntersilProducts-KESMIndustriesBHD Product Change Notice PDF 137 KB
PCN14006 - Test Site Change for the Listed Intersil Products Product Change Notice PDF 168 KB
PCN13051 - Data Sheet Specification Change for Intersil Product ISL78600ANZ and ISL78600ANZ-T Product Change Notice PDF 717 KB
Analog ICs Brochure 日本語 Brochure PDF 4.20 MB
Industrial Power Management Brochure ( R16CL0001EJ0200 ) 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
PA18010 - Datasheet specification change for Listed Renesas ISL78600* and ISL78610* products Product Advisory PDF 411 KB
PA13004 - Data Sheet Specification Change for Intersil Products ISL78600ANZ and ISL78600ANZ-T Product Advisory PDF 334 KB


Title language Type Format File Size Date
BMS Installer Software EXE 2.85 MB

Boards & Kits

Part Number Title Type Company
ISL78600EVKIT1Z Multi-Cell Li-Ion Battery Manager Evaluation Kit Evaluation Renesas