MP4050A Non-Isolated, High-Brightness LED Driver with Enhanced Thermal Feature The Future of Analog IC Technology DESCRIPTION FEATURES The MP4050A is a constant current LED driver Constant Current LED Driver with an integrated 500V MOSFET. It is Integrated 500V/8 MOSFET designed specifically for energy efficient and Low VCC Operating Current low-cost LED bulb replacement applications. Maximum Frequency Limit Audible Noise Restrain The MP4050A is designed to drive high- Internal High-Voltage Current Source brightness LEDs from a universal AC grid input Internal 200ns Leading Edge Blanking or DC input. The accurate output LED current is achieved by an averaging internal current Integrated Thermal Current Foldback feedback loop. Constant LED current is Thermal Shutdown (Auto Re-Start with delivered quietly by switching the internal Hysteresis) MOSFET at a frequency regulated above VCC Under-Voltage Lockout with Hysteresis 22kHz. Open LED Protection Short-Circuit Protection The MP4050A can be powered directly by the Auto-Restart Function high input voltage. An internal high-voltage Available in TSOT23-5/SOIC-8 Packages current source regulates supply voltage without external circuitry. APPLICATIONS Full protections features include integrated AC/DC or DC/DC LED Driver Application thermal current foldback, VCC under-voltage General Illumination lockout (UVLO), open LED protection (OLP), Industrial Lighting short-circuit protection (SCP), and over- Automotive/Decorative LED Lighting temperature protection (OTP). These features make the MP4050A an ideal solution for simple, All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under off-line, and non-isolated LED applications. Quality Assurance. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION MP4050A Rev. 1.02 www.MonolithicPower.com 1 9/19/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. MP4050A NON-ISOLATED, HIGH-BRIGHTNESS LED DRIVER, WITH ENHANCED THERMAL FEATURE ORDERING INFORMATION Part Number Package Top Marking MP4050AGJ* TSOT23-5 See Below MP4050AGS** SOIC-8 * For Tape & Reel, add suffix Z (e.g. MP4050AGJZ) ** For Tape & Reel, add suffix Z (e.g. MP4050AGSZ). TOP MARKING (TSOT23-5) ANV: Product Code of MP4050AGJ Y: Year Code. TOP MARKING (SOIC-8) MP4050A: Product Code of MP4050AGS LLLLLLLL: Lot Number MPS: MPS Prefix Y: Year Code WW: Week Code. MP4050A Rev. 1.02 www.MonolithicPower.com 2 9/19/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.