MP4008
MP4008 is High-Current Accuracy WLED Controller manufactured by Monolithic Power Systems.
The Future of Analog IC Technology
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...
