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RT8532 - 6-String 43V White LED Driver

General Description

The RT8532 is a high efficiency white LED driver.

It is designed for LCD panel that employs a LED array as the lighting source.

An integrated switch current mode Boost controller drives six strings in parallel and supports up to 10 pieces of LEDs per string.

Key Features

  • Wide Input Voltage : VIN 2.5V to 24V.
  • High Output Voltage : VOUT up to 43V.
  • Programmable Full Channel Current from 5mA to 50mA and Matched to 2%.
  • Channel Current Regulation with ±3% Accuracy.
  • Dimming Controls  Direct PWM Dimming up to 20kHz and Minimum On-Time to 500ns  PWM to Mixed Analog and PWM Dimming up to 20kHz with Maximum 9 bit Resolution.
  • Built-In Soft Start to Prevent Inrush Current without External Capacitor.
  • Disconnects LED in Shutdown.
  • Prot.

📥 Download Datasheet

Datasheet Details

Part number RT8532
Manufacturer Richtek
File Size 268.06 KB
Description 6-String 43V White LED Driver
Datasheet download datasheet RT8532 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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® RT8532 6-String 43V White LED Driver with Boost Regulator General Description The RT8532 is a high efficiency white LED driver. It is designed for LCD panel that employs a LED array as the lighting source. An integrated switch current mode Boost controller drives six strings in parallel and supports up to 10 pieces of LEDs per string. The internal current sinks support maximum ±2% current matching for excellent brightness uniformity in each LED string. To provide enough headroom for the operating of current sink, the Boost controller monitors the minimum voltage of feedback pins and regulates an optimized output voltage for power efficiency. The RT8532 has wide input voltage range from 2.5V to 24V and provides adjustable 5mA to 50mA LED current.