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RGB White Blue 8-LED Fun Light Driver



  • The LP3944 is an integrated device capable of independently driving 8 LEDs.
  • This device contains an internal precision oscillator that provides all the necessary timing required for driving each LED.
  • Two prescaler registers along with two PWM registers provide a versatile duty cycle control.
  • The LP3944 contains the ability to dim LEDs in SMBUS/I2C applications where it is required to cut down ob bus traffic.
  • Internal power-on reset
  • Active low reset
  • Internal precision oscillator
  • Variable dim rates (from 6.25 ms to 1.6s; 160 Hz-0.625 Hz)

Key Specifications:

  • 8 LED driver (multiple programmable states--on, off, input, and dimming at a specified rate)
  • 8 Open drain outputs capable of driving up to 25mA per LED


  • Customized flashing LED lights for cellular phones
  • Portable Applications
  • Digital Cameras
  • Indicator Lamps
  • General purpose I/O expander
  • Toys


Texas Instruments  LP3944ISQEV

RGB/White/Blue 8-LED Fun Light Driver