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MIC4801 - High Efficiency 600mA Single Channel Linear WLED Driver

General Description

The MIC4801 is a high efficiency White LED (WLED) driver designed to drive a single LED up to 600mA.

The MIC4801 constant current driver is designed to drive high power LED’s in various lighting applications.

Key Features

  • a typical dropout of 130mV at 400mA. This allows the LEDs to be driven directly from the voltage source eliminating switching noise/losses present with the use of boost circuitry. The high accuracy (±1% typical) current regulated WLED channel ensures uniform display illumination under all conditions. The brightness is controlled through an Ultra Fast PWM™ Control interface operating down to less than 1% duty cycle. The MIC4801 is available in an 8-pin SOIC package with a junction temperature ran.

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Datasheet Details

Part number MIC4801
Manufacturer Micrel Semiconductor
File Size 550.56 KB
Description High Efficiency 600mA Single Channel Linear WLED Driver
Datasheet download datasheet MIC4801 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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MIC4801 High Efficiency 600mA Single Channel Linear WLED Driver with Ultra Fast PWM™ Control General Description The MIC4801 is a high efficiency White LED (WLED) driver designed to drive a single LED up to 600mA. The MIC4801 constant current driver is designed to drive high power LED’s in various lighting applications. The MIC4801 provides the highest possible efficiency as this architecture has no switching losses present in traditional charge pumps or inductive boost circuits. It features a typical dropout of 130mV at 400mA. This allows the LEDs to be driven directly from the voltage source eliminating switching noise/losses present with the use of boost circuitry. The high accuracy (±1% typical) current regulated WLED channel ensures uniform display illumination under all conditions.