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HV9803 - LED Driver IC

General Description

The HV9803 is an open loop average-mode current control LED driver IC operating in a constant off-time mode.

Key Features

  • Fast average current control.
  • Correction for propagation delay and offset voltage.
  • Fixed off-time switching mode.
  • Linear dimming input.
  • PWM dimming input.
  • Output short circuit protection with programmable skip mode.
  • Input under-voltage shutdown.

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Datasheet Details

Part number HV9803
Manufacturer Supertex
File Size 343.71 KB
Description LED Driver IC
Datasheet download datasheet HV9803 Datasheet

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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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Supertex inc. HV9803 LED Driver IC with Average-Mode Constant Current Control Features ►► Fast average current control ►► Correction for propagation delay and offset voltage ►► Fixed off-time switching mode ►► Linear dimming input ►► PWM dimming input ►► Output short circuit protection with programmable skip mode ►► Input under-voltage shutdown Applications ►► Backlighting of LCD Panels ►► General lighting General Description The HV9803 is an open loop average-mode current control LED driver IC operating in a constant off-time mode. The IC features ±2% current accuracy, tight line and load regulation of the LED current without any need for loop compensation or high-side current sensing.