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RT8549L - 24V/60V Boost Converter

General Description

The RT8549L is a high efficiency Boost converter with 4-CH LED driver supporting 60V maximum output voltage.

It is designed for LCD panel applications that employs LED as lighting sources.

Key Features

  • Wide Operating Input Voltage : 4.2V to 24V.
  • Max 60V Output Voltage.
  • 3% LED Current Accuracy.
  • 2% LED Current Matching.
  • Low Drop Output 120mA/0.4V Current Sink.
  • SMBus Programs LED Current, Switching Frequency, Dimming Mode.
  • LED Current : 22.58mA to 180mA.
  • Switching Frequency : 200kHz to 900kHz.
  • Dimming Mode : PWM, DC, Mixed-Mode.
  • Built-in Input UVP, Output OVP, OCP, and Soft-Start.
  • Support LED Hot-plug, Open/Short Detection.
  • Low EMI, Low.

📥 Download Datasheet

Datasheet Details

Part number RT8549L
Manufacturer Richtek
File Size 401.06 KB
Description 24V/60V Boost Converter
Datasheet download datasheet RT8549L 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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® RT8549L 24V/60V Boost Converter with SMBus Controlled 4-CH LED Driver General Description The RT8549L is a high efficiency Boost converter with 4-CH LED driver supporting 60V maximum output voltage. It is designed for LCD panel applications that employs LED as lighting sources. The Boost converter generates a suitable output voltage to drive four LED strings in parallel and supports up to 18 LEDs per string. The RT8549L supports a wide input voltage range from 4.2V to 24V and provides a SMBus interface to control the LED brightness dimming mode, operating frequency and LED currents. The internal 150mΩ, 60V power switch with current-mode control provides high efficiency operation. The RT8549L is available in the WDFN-16L 5x5 package to achieve optimized solution for PCB space.