The ISL94208 battery management IC is designed for use with a microcontroller and features an analog front-end with overcurrent protection for multi-cell Li-ion battery packs. The ISL94208 supports battery packs consisting of four to six cells in series and one or more cells in parallel.

The ISL94208EVZ evaluation board provides a platform to evaluate the performance of the ISL94208 battery front-end IC. The kit contains the following components:

  • ISL94208EVZ board
  • ISL94208DB1EVZ cell balance daughter board
  • ISL94208DB2EVZ cell balance daughter board
  • GUI software for a PC running Windows XP
  • A power supply interface board for connecting a single power source or a battery stack


  • Software selectable overcurrent protection levels and variable protect detection times
    • 4 discharge overcurrent thresholds
    • 4 short-circuit thresholds
    • 4 charge overcurrent thresholds
    • 8 overcurrent delay times (charge)
    • 8 overcurrent delay times (discharge)
    • 2 short-circuit delay times (discharge)
  • Automatic FET turn-off and cell balance disable upon reaching external (battery) or internal (IC) temperature limit
  • Automatic cell balance turn off on IC over-temperature
  • Integrated charge/discharge FET drive circuitry
  • Internal cell balancing FETs handle up to 200mA of balancing current for each cell
  • Sleep operation with negative or positive edge wake-up
  • <10μA sleep mode


  • Power tools
  • Portable equipment
  • Battery backup systems
  • Military electronics

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL94208 Datasheet Datasheet PDF 1.61 MB
User Guides & Manuals
ISL94208EVZ GUI User Guide Manual PDF 2.21 MB
ISL94208EVZ User Guide Manual PDF 2.07 MB
ISL94208EVZ User Guide Manual PDF 1.14 MB
Application Notes & White Papers
AN1891: Designing with the ISL94208 Analog Front End Application Note PDF 1.80 MB
Entmystifizierung von Batteriemanagementsystemen White Paper PDF 441 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
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
ISL94203EVKIT1Z Design Files Design File ZIP 6.45 MB
ISL94212EVKIT1Z Design Files Design File ZIP 6.09 MB
ISL94202EVKIT1Z Design Files Design File ZIP 6.74 MB
ISL94212EVKIT1Z Kit Installer Software v3.0.1 Library EXE 2.94 MB
ISL94208 Evaluation Kit Software Library ZIP 4.87 MB
ISL94202EVKIT1Z, ISL94203EVKIT1Z Installer Software v306 Library EXE 2.78 MB