MP4008 High-Brightness, High-Current Accuracy WLED Controller The Future of Analog IC Technology DESCRIPTION FEATURES Constant Current WLED Driver The MP4008 is a current-mode controller 280mV Feedback Voltage with 1.8% designed for driving high brightness light Accuracy emitting diodes (LEDs) with a wide input 9V to 28V Input Voltage voltage from 9V to 28V. It can be used in boost and SEPIC topologies. Leading Edge Blanking for Current Sense Frequency Fixed to 180kHz The MP4008 drives an external MOSFET with a Fast PWM Dimming fixed frequency architecture to regulate the LED Soft Start current, which is measured through an external Over-Voltage Protection current-sense resistor. The LED current Short LED Protection feedback voltage is 280mV. The switching Short Output Protection frequency is fixed to 180kHz. The cycle-by- Over-Current Protection cycle current limit can be programmed by the sense resistor on CS. Short Inductor/Diode Protection VIN UVLO The MP4008 employs fast PWM dimming to the Thermal Shutdown LED current with a high dimming ratio. Available in a SOIC-8 Package Integrated protection features include under- APPLICATIONS voltage lockout, over-voltage protection, over- current protection, short LED protection, short LCD Backlighting output protection, short inductor/diode DC/DC LED Driver protection, and OTP. General Illumination The MP4008 is available in a SOIC-8 package. Industrial Lighting Automotive/ Decorative LED Lighting All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION MP4008 Rev. 1.01 www.MonolithicPower.com 1 12/8/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS All Rights Reserved MP4008 HIGH-BRIGHTNESS, HIGH-CURRENT ACCURACY WLED CONTROLLER ORDERING INFORMATION Part Number* Package Top Marking MP4008GS SOIC-8 See Below * For Tape & Reel, add suffix Z (e.g. MP4008GSZ) TOP MARKING MP4008: Part number LLLLLLLL: Lot number MPS: MPS Prefix Y: Year code WW: Week code PACKAGE REFERENCE TOP VIEW MP4008 Rev. 1.01 www.MonolithicPower.com 2 12/8/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS All Rights Reserved