The ISL97632 is an efficient and highly integrated PWM boost LED driver that is suitable for 1.8" to 3.5" LCDs that employ 2 to 7 white LEDs for backlighting. With an integrated Schottky diode, overvoltage protection (OVP) and dynamic digital dimming capability, the ISL97632 provides a simple, reliable and flexible solution to the backlight designers. The demo kit is made up of an ISL97632IRTZ-EVALZ evaluation board connected with a USB adapter board that can be programmed by a PC running Windows XP.


  • 1-wire 5-bit digital dimming
  • Drives up to 7 LEDs in series (3.5V/20mA type)
  • OVP (14V, 18V and 26V for 3, 4 and 7 LEDs applications)
  • Integrated Schottky diode
  • 2.4V to 5.5V input
  • 86% efficiency
  • Enable for shutdown function or zero brightness setting
  • 1μA shutdown current
  • Internally compensated
  • 8 Ld TDFN (2mm x 3mm)
  • Pb-Free (RoHS compliant)


  • LED backlighting for Cell phones/Smartphones
  • MP3 players
  • Portable media players (PMP)
  • Automotive navigation panels
  • Portable GPS

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL97632 Datasheet Datasheet PDF 548 KB
User Guides & Manuals
ISL97632IRTZ-EVALZ User Guide Manual PDF 309 KB
ISL97684IRTZEVALZ Design Files Design File ZIP 119 KB
ISL97683IRTZEVALZ Design Files Design File ZIP 119 KB
ISL97682IRTZEVALZ Design Files Design File ZIP 695 KB
ISL78171EVAL1Z Design Files Design File ZIP 1.28 MB
ISL97694A Software Installer Library EXE 2.14 MB
ISL97673 Evaluation Kit Software v2.1 Library ZIP 2.72 MB
ISL97671A Evaluation Kit Software v2.1 Library ZIP 2.83 MB
ISL97632 Demo Board Software v091 Library ZIP 4.15 MB
TB469: Using the ISL97632 White LED Driver Demo Board Other PDF 66 KB