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LP3943 - White-LED Driver

General Description

The LP3943 is an integrated device capable of independently driving 16 LEDs.

This device also 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.

Key Features

  • 1 Internal Power-On Reset.
  • Active Low Reset.
  • Internal Precision Oscillator.
  • Variable Dim Rates (From 6.25 ms to 1.6 s; 160 Hz to 0.625 Hz).
  • 16 LED Drivers (Multiple Programmable States: ON, OFF, Input, and Dimming at a Specified Rate).
  • 16 Open-Drain Outputs Capable of Driving up to 25 mA per LED 2.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LP3943 SNVS256D – NOVMEBER 2003 – REVISED NOVEMBER 2016 LP3943 16-Channel RGB, White-LED Driver With Independent SMBUS/I2C String Control 1 Features •1 Internal Power-On Reset • Active Low Reset • Internal Precision Oscillator • Variable Dim Rates (From 6.25 ms to 1.6 s; 160 Hz to 0.625 Hz) • 16 LED Drivers (Multiple Programmable States: ON, OFF, Input, and Dimming at a Specified Rate) • 16 Open-Drain Outputs Capable of Driving up to 25 mA per LED 2 Applications • Customized Flashing LED Lights for Cellular Phones • Portable Applications • Digital Cameras • Indicator Lamps • General Purpose I/O Expander • Toys 3 Description The LP3943 is an integrated device capable of independently driving 16 LEDs.