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MP3393 - 8-String Step-Up White LED Driver

Description

The MP3393 is a step-up controller with 8 current channel sources designed to power WLED backlights for large LCD panels.

The MP3393 uses current-mode fixed-frequency architecture.

It drives an external MOSFET to boost the output voltage.

Features

  • 9V-to-32V Input Voltage Range.
  • Drives 8 Channels of LED strings.
  • Internal Constant-Current Control.
  • Maximum Channel Current Over 350mA.
  • 1.2% Current Matching Accuracy Between Strings.
  • Programmable Switching Frequency.
  • Analog Dimming and External PWM Dimming.
  • Open and Short LED Protection.
  • Programmable Over-Voltage Protection.
  • Fault Output Flag.
  • Thermal Shutdown.
  • Extendable LED Channels th.

📥 Download Datasheet

Datasheet preview – MP3393

Datasheet Details

Part number MP3393
Manufacturer Monolithic Power Systems
File Size 508.49 KB
Description 8-String Step-Up White LED Driver
Datasheet download datasheet MP3393 Datasheet
Additional preview pages of the MP3393 datasheet.

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Full PDF Text Transcription

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The Future of Analog IC Technology DESCRIPTION The MP3393 is a step-up controller with 8 current channel sources designed to power WLED backlights for large LCD panels. The MP3393 uses current-mode fixed-frequency architecture. It drives an external MOSFET to boost the output voltage. The switching frequency is programmable by an external setting resistor. The MP3393 integrates a constant-current control circuit to regulate the current in each LED string to the value set by an external current feedback resistor. Current matching can achieve 1.2% regulation accuracy between strings. Its low 202mV regulation voltage reduces power loss and improves efficiency. The MP3393 includes protections including under-voltage lockout, LED open/short protection, and thermal shutdown.
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