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XRP7618 - 8-Channel Constant Current Linear LED Driver

General Description

The XRP7618 is an 8-channel, high voltage, constant-current sink LED driver capable of driving up to 100mA current per channel.

With outputs rated at 30V, the XRP7618 can control strings of multiple LEDs with better than ±1.5% channel to channel current matching.

Key Features

  • 8 Constant-Current Channels  Adjustable up to 100mA per Channel  Channel Paralleling for higher Current  ±1.5% Current Matching Accuracy.
  • Up to 30V LED Channel Voltage Range  5V Biasing Voltage and Control.
  • Smart TalkTM Power Optimization.
  • Parallel Operations Support.
  • PWM and Analog Dimming.
  • UVLO, Open LED & Over Temperature protection.
  • RoHS Compliant Halogen Free, 20-pin TSSOP (EP) Package www. DataSheet. net/.

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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.

View original datasheet text
X RP 7 6 1 8 8-Channel Constant Current Linear LED Driver With Smart TalkTM July 2011 Rev. 1.0.0 GENERAL DESCRIPTION The XRP7618 is an 8-channel, high voltage, constant-current sink LED driver capable of driving up to 100mA current per channel. With outputs rated at 30V, the XRP7618 can control strings of multiple LEDs with better than ±1.5% channel to channel current matching. LED channel current is programmed via an external resistor within a 10mA to 100mA range. Dimming control is supported through a standard PWM scheme up to 25kHz or through an analog signal. Featuring Exar’s Smart TalkTM technology, when combined with a boost converter, the XRP7618 maximizes the overall system efficiency by dynamically reporting the minimum LED voltage necessary to maintain current regulation mode.