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XRP7620 - 4-Channel Adjustable Current I2C Controlled LED Driver

Description

The XRP7620 is a multi purpose 4-channel independently adjustable current sink driver.

Optimized for LED backlighting and RGBW/RGBA color mixing applications, the XRP7620 can also be used as a generic software programmable current sink I/O expander.

Features

  • 4-Channel LED Current Sink Driver.
  • Individual Channel Current Control  Up to 31.5mA per channel / 0.5mA Steps  100mV Channel Dropout Voltage.
  • I2C Serial Interface.
  • 2.7V - 5.5V Input Voltage Range.
  • 3% Channel Current Matching.
  • Register Retention in Shutdown.
  • Shutdown Current.

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Full PDF Text Transcription

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June 2012 XRP7620 4-Channel Adjustable Current I2C Controlled LED Driver Rev. 1.1.0 GENERAL DESCRIPTION The XRP7620 is a multi purpose 4-channel independently adjustable current sink driver. Optimized for LED backlighting and RGBW/RGBA color mixing applications, the XRP7620 can also be used as a generic software programmable current sink I/O expander. Supporting an industry standard 2-wire I2C serial interface, the XRP7620 provides full independent control of each channel and can be programmed up to a current of 31.5mA in steps of 0.5mA. Uniform display brightness is ensured through better than 3% channel to channel current matching. Five internal registers are provided to set operational configuration and individual channel current programmation.
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