High-Brightness, High-Current Accuracy WLED Controller

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Unit Price:$0.48
Minumum Qty: 2500
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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.

Integrated protection features include under-voltage lockout, over-voltage protection, over-current protection, short LED protection, short output protection, short inductor/diode protection, and OTP.

The MP4008 is available in a SOIC-8 package.

Symmetry Electronics is an authorized Monolithic Power Systems distributor.


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Constant Current WLED Driver
280mV Feedback Voltage with 1.8% Accuracy
9V to 28V Input Voltage
Leading Edge Blanking for Current Sense
Frequency Fixed to 180kHz
Fast PWM Dimming
Soft Start
Over-Voltage Protection
Short LED Protection
Short Output Protection
Over-Current Protection
Short Inductor/Diode Protection
Thermal Shutdown
Available in a SOIC-8 Package


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Monolithic Power Systems Datasheet

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