RGB White Blue 16-LED Fun Light Driver


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RGB/White/Blue 16-LED Fun Light Driver

  • The LP3943 is an integrated device capable of independently driving 16 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 LP3943 contains the ability to dim LEDs in SMBUS/I2C applications where it is necessary to cut down on 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:

  • 16 LED driver (multiple programmable states--on, off, input, and dimming at a specified rate)
  • 16 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


RGB LED drivers
LP3943 16 channel RGB/White LED driver with independent string control via SMBUS/I2C
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Evaluation board

LP3943ISQEV — RGB White Blue 16-LED Fun Light Driver

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Technical documentation

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Type Title Date
* User guide AN-1300 LP3943 Evaluation Kit (Rev. B) 30 Apr 2013
Certificate LP3943ISQEV EU Declaration of Conformity (DoC) 02 Jan 2019

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