MP4689A 100V Input, 1A, High-Power LED Driver DESCRIPTION FEATURES The MP4689A is a high-voltage input, step- Wide 4.5V to 100V Operating Input Range down, switching regulator that delivers up to 1A No Output Capacitor Required of constant current to high-power LEDs. The 3% LED Current Accuracy MP4689A integrates a high-side, high-voltage, Hysteretic Control: No Compensation power MOSFET with a typical current limit of Up to 1MHz Switching Frequency 3.5A. Up to 20kHz Dimming Frequency Dedicated PWM Dimming Control Input The wide 4.5V to 100V input range Short-Circuit Protection (SCP) with accommodates a variety of step-down applications, making it ideal for automotive, Integrated High-Side MOSFET industrial, and general lighting applications. Thermal Shutdown 200mV Reference Voltage for High Hysteresis current-mode control is applied for Efficiency very fast response, which makes the 20kHz Up to 95% Efficiency dimming frequency possible. MPSs proprietary 170A Quiescent Current feedback control scheme minimizes the number Available in a SOIC-8 Package with an of external components while delivering an LED Exposed Pad current with 3% accuracy. The switching frequency is up to 1MHz, which APPLICATIONS allows for a small component size. Thermal High-Power LED Drivers shutdown and short-circuit protection (SCP) Automotive, Industry, and General Lighting provide reliable and fault-tolerant operations. A Constant Current Sources 170A quiescent current allows the MP4689A All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For to be used in battery-powered applications. MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are registered The MP4689A is available in a SOIC-8 package trademarks of Monolithic Power Systems, Inc. with an exposed pad. TYPICAL APPLICATION MP4689A Rev. 1.0 www.MonolithicPower.com 1 2/17/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved. MP4689A 100V INPUT, 1A, HIGH-POWER LED DRIVER ORDERING INFORMATION Part Number Package Top Marking MP4689AGN SOIC-8 EP See Below *For Tape & Reel, add suffix-Z (e.g. MP4689AGN-Z) TOP MARKING MP4689A: Part number LLLLLLLL: Lot number MPS: MPS prefix Y: Year code WW: Week code PACKAGE REFERENCE SOIC-8 EP (4) (1) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply voltage (VIN) .................. -0.3V to +100V SOIC-8 EP ............................ 50 ....... 10 ... C/W Switch voltage (VSW) ........... -0.5V to VIN + 0.5V NOTES: BST to SW ..................................... -0.3V to +6V 1) Exceeding these ratings may damage the device. All other pins .................................. -0.3V to +6V 2) The maximum allowable power dissipation is a function of the maximum junction temperature T (MAX), the junction-to- J Junction temperature ............................... 150C ambient thermal resistance , and the ambient temperature JA (2) Continuous power dissipation (T = +25C) A T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX)=(T (MAX)- D J .................................................................. 2.5W T )/ . Exceeding the maximum allowable power dissipation A JA Lead temperature .................................... 260C produces an excessive die temperature, causing the regulator to go into thermal shutdown. Internal thermal shutdown Storage temperature ................ -65C to +150C circuitry protects the device from permanent damage. (3) Recommended Operating Conditions 3) The device is not guaranteed to function outside of its operating conditions. Supply voltage (VIN) ....................... 4.5V to 95V 4) Measured on JESD51-7 4-layer board. EN and DIM voltages ........................... 0V to 5V Operating junction temp.(T ) .... -40C to +125C J MP4689A Rev. 1.0 www.MonolithicPower.com 2 2/17/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved.