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HV9989 - Three-Channel CCM/DCM Boost LED Driver

Description

HV9989 is a three-channel peak current mode PWM controller designed to drive single switch converters in a constant-output current mode.

It can be used for driving either RGB LEDs or multiple channels of white LEDs.

Features

  • Three out-of-phase constant-current boost converters.
  • Current loop closed, with sub-microsecond PWMdimming pulses, supports PWM dimming >20 kHz.
  • Internal 40V linear regulator.
  • External clock input.
  • External individual reference inputs.
  • Individual PWM dimming inputs.
  • Programmable slope compensation.
  • +0.2A/-0.4A gate drivers.
  • Independent short circuit protection with hiccup for each channel.
  • Latching output.

📥 Download Datasheet

Datasheet preview – HV9989

Datasheet Details

Part number HV9989
Manufacturer Microchip
File Size 557.50 KB
Description Three-Channel CCM/DCM Boost LED Driver
Datasheet download datasheet HV9989 Datasheet
Additional preview pages of the HV9989 datasheet.

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Full PDF Text Transcription

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HV9989 Three-Channel CCM/DCM Boost LED Driver with Sub-Microsecond PWM Dimming Features • Three out-of-phase constant-current boost converters • Current loop closed, with sub-microsecond PWMdimming pulses, supports PWM dimming >20 kHz • Internal 40V linear regulator • External clock input • External individual reference inputs • Individual PWM dimming inputs • Programmable slope compensation • +0.2A/-0.4A gate drivers • Independent short circuit protection with hiccup for each channel • Latching output open-circuit protection Applications • LCD panel back-lighting Description HV9989 is a three-channel peak current mode PWM controller designed to drive single switch converters in a constant-output current mode.
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