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MP3398E - WLED Controller

General Description

The MP3398E is a step-up controller with four current channels designed to drive WLED arrays for large LCD panel backlighting applications.

The MP3398E is able to expand the number of LED channels with two or more ICs in parallel sharing a single power source.

Key Features

  • include over-current protection (OCP), over-temperature protection (OTP), under-voltage protection (UVP), overvoltage protection (OVP), LED short/open protection, and inductor/diode short protection. The MP3398E is available in TSSOP-16EP, SOIC-16 and PDIP-16 packages.

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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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The Future of Analog IC Technology MP3398E 4-String, Max 400mA/String, 80V Return, Step-Up, WLED Controller DESCRIPTION The MP3398E is a step-up controller with four current channels designed to drive WLED arrays for large LCD panel backlighting applications. The MP3398E is able to expand the number of LED channels with two or more ICs in parallel sharing a single power source. The MP3398E employs peak-current mode with a fixed switching frequency. The frequency is programmable through an external setting resistor. The MP3398E drives an external MOSFET to boost up the output voltage from a 4.5V to 33V input supply and regulates the current in each LED string to the value set by an external current-setting resistor. The MP3398E applies four internal current sources for current balancing.