MP4689 100V Input, 1A High Power LED Driver The Future of Analog IC Technology DESCRIPTION FEATURES The MP4689 is a high voltage input step-down Wide 4.5V to 100V Operating Input Range switching regulator to deliver a constant current No Output Capacitor Required of up to 1A to high power LEDs. It integrates a 3% LED Current Accuracy high-side high voltage power MOSFET with a Hysteretic Control: No Compensation current limit of 2.9A (typical value). The wide Up to 1MHz Switching Frequency 4.5V to 100V input range accommodates a Up to 20kHz Dimming Frequency variety of step-down applications, making it Dedicated PWM Dimming Control Input ideal for automotive, industrial and general Short Circuit Protection with Integrated High lighting applications. Hysteresis current mode Side MOSFET control is applied for very fast response, which Thermal Shut Down makes the 20kHz dimming frequency possible. 200mV Reference Voltage for High MPSs proprietary feedback control scheme Efficiency minimizes the number of external components Up to 95% Efficiency while delivering a LED current with typical 3% 170 A Quiescent Current accuracy. Available in SOIC-8 with Exposed Pad The switching frequency is up to 1MHz, thus Package allowing for small component size. The thermal shut down and short circuit protection provide APPLICATIONS reliable, fault tolerant operations. A 170A High Power LED Driver quiescent current allows its use in battery- Automotive, Industry and General Lighting powered applications. Constant Current Source The MP4689 is available in SOIC8 with All MPS parts are lead-free and adhere to the RoHS directive. For MPS green exposed pad package. status, please visit MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION V IN PWM DIM VIN 4.5V to 100V C IN C BST BST EN Enable V SW OUT L O D1 FB GND MP4689 Rev. 1.1 www.MonolithicPower.com 1 1/28/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. MP4689 100V INPUT, 1A HIGH POWER LED DRIVER ORDERING INFORMATION Part Number* Package Top Marking MP4689DN SOIC-8 EP MP4689 * For Tape & Reel, add suffix Z (e.g. MP4689DNZ) For RoHS compliant packaging, add suffix LF (e.g. MP4689DNLFZ) PACKAGE REFERENCE (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply Voltage (V ) .................... -0.3V to +100V IN SOIC-8 EP ............................... 50 ...... 10 ... C/W Switch Voltage (V ) ............. -0.5V to V + 0.5V SW IN 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 ............................................................... 2.5W any ambient temperature is calculated by PD(MAX)=(TJ(MAX)- TA)/ JA. Exceeding the maximum allowable power dissipation Lead Temperature .................................... 260 C will cause excessive die temperature, and the regulator will go Storage Temperature ................ -65C to +150 C into thermal shutdown. Internal thermal shutdown circuitry (3) protects the device from permanent damage. Recommended Operating Conditions 3) The device is not guaranteed to function outside of its Supply Voltage V ........................... 4.5V to 95V operating conditions. IN 4) Measured on JESD51-7 4-layer board. EN and DIM Voltages ........................... 0V to 5V Operating Junction Temp.(T ) .. -40C to +125 C J MP4689 Rev. 1.1 www.MonolithicPower.com 2 1/28/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.