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MP4008 - High-Current Accuracy WLED Controller

General Description

The MP4008 is a current-mode controller designed for driving high brightness light emitting diodes (LEDs) with a wide input voltage from 9V to 28V.

It can be used in boost and SEPIC topologies.

Key Features

  • include undervoltage lockout, over-voltage protection, overcurrent protection, short LED protection, short output protection, short inductor/diode protection, and OTP. The MP4008 is available in a SOIC-8 package.

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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 MP4008 High-Brightness, High-Current Accuracy WLED Controller DESCRIPTION The MP4008 is a current-mode controller designed for driving high brightness light emitting diodes (LEDs) with a wide input voltage from 9V to 28V. It can be used in boost and SEPIC topologies. The MP4008 drives an external MOSFET with a fixed frequency architecture to regulate the LED current, which is measured through an external current-sense resistor. The LED current feedback voltage is 280mV. The switching frequency is fixed to 180kHz. The cycle-bycycle current limit can be programmed by the sense resistor on CS. The MP4008 employs fast PWM dimming to the LED current with a high dimming ratio.