LED Driver with 1-Wire Dimming Evaluation Board


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

ISL97632IRTZ-EVALZ Evaluation Board Layout

ISL97632IRTZ-EVALZ Evaluation Board Layout




Tools Orderable Part Number (s) Production Status Manufacturer Suggested Single Tool Price
Description Distributor Stock Distributors Distributor Purchase Buy Direct
ISL97632IRTZ-EVALZ Mass Production Renesas $60.50 1 0 Call -

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