MP4425AGQB-P Monolithic Power Systems

MP4425A High-Efficiency, 1.5A, 36V, 2.2MHz, Synchronous, Step-Down LED Driver DESCRIPTION FEATURES The MP4425A is a high-frequency, synchronous, Wide 4V to 36V Operating Input Range rectified, step-down, switch-mode white LED 85m/50m Low R Internal Power DS(ON) driver with built-in power MOSFETs. It offers a MOSFETs very compact solution to achieve 1.5A of High-Efficiency Synchronous Mode continuous output current with excellent load and Operation line regulation over a wide input supply range. Default 2.2MHz Switching Frequency The MP4425A has synchronous mode operation PWM Dimming (Min 100Hz Dimming to get high efficiency. Frequency) Forced CCM Mode Current mode operation provides fast transient 0.2V Reference Voltage response and eases loop stabilization. Internal Soft Start Full protection features include over-current Fault Indication for LED Short, Open, and protection (OCP) and thermal shutdown (TSD). Thermal Shutdown The MP4425A requires a minimal number of Over-Current Protection (OCP) with Valley- readily available, standard external components, Current Detection and is available in a space-saving QFN-13 Thermal Shutdown (2.5mmx3mm) package. CISPR25 Class 5 Compliant Available in a QFN-13 (2.5mmx3mm) Package APPLICATIONS Automotive LED Lighting All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, visit the MPS website under Quality Assurance. MPS, the MPS logo, and Simple, Easy Solutions are registered trademarks of Monolithic Power Systems, Inc. or its subsidiaries. TYPICAL APPLICATION BST MP4425A LED+ SW EN/DIM EN/DIM VCC FB LED- /FAULT /FAULT PGND AGND MP4425A Rev. 1.0 www.MonolithicPower.com 1 8/5/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. MP4425A 36V, 1.5A, SYNCHRONOUS, STEP-DOWN LED DRIVER ORDERING INFORMATION Part Number * Package Top Marking MP4425AGQB QFN-13 (2.5mmx3mm) See Below * For Tape & Reel, add suffix Z (e.g. MP4425AGQBZ). TOP MARKING BDU: Product code of MP4425AGQB Y: Year code WW: Week code LLL: Lot number PACKAGE REFERENCE TOP VIEW PGND PGND PGND BST 13 12 11 10 9 SW IN 1 8 AGND 2 IN 7 VCC 3 4 5 6 EN /FAULT NC FB /DIM QFN-13 (2.5mmx3mm) MP4425A Rev. 1.0 www.MonolithicPower.com 2 8/5/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.