MP24895 Step-down White-LED Driver Wide 6-36V Input Voltage The Future of Analog IC Technology DESCRIPTION FEATURES The MP24895 is step-down LED driver, which Internal 36V MOSFET is designed in continuous current mode for Wide 6V-to-36V Input Range driving the high-brightness LEDs from a wide 1A Output Current input voltage of 6V to 36V. High Efficiency Hysteretic Control The MP24895 employs a hysteretic control PWM and Analog Dimming scheme to regulate LED current. Moreover, the 1000:1 PWM Dimming Resolution control scheme provides optimal loop UVLO, Thermal Shutdown stabilization and a very quick response time. For a high accuracy, the MP24895 senses LED Available in TSOT23-5 and QFN-6 current by an external high-side resistor. Its low Packages 100mV average feedback voltage reduces APPLICATIONS power loss and improves the efficiency. Low-Voltage Halogen Replacement The MP24895 implements PWM and analog Low-Voltage General Illumination dimming together on the EN/DIM pin. Automotive/Decorative LED Lighting The MP24895 includes under-voltage lockout,t Signs/Emergency Lighting and thermal overload protection to prevent LED Backlighting damage in the event of an output overload. All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. The MP24895 is available in TSOT23-5 and MPS and The Future of Analog IC Technology are registered trademarks of QFN-6 packages. Monolithic Power Systems, Inc. TYPICAL APPLICATION D RSENSE VIN CIN 6 36V IN RS L MP24895 EN/DIM SW GND MP24895 Rev. 1.0 www.MonolithicPower.com 1 8/6/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved. MP24895 STEP-DOWN WHITE-LED DRIVER WITH 6-36V INPUT VOLTAGE ORDERING INFORMATION Part Number* Package Top Marking TSOT23-5 MP24895GJ* AKD QFN-6 (3x3mm) MP24895GQ** AKD * For Tape & Reel, add suffix Z (e.g. MP24895GJZ) * *For Tape & Reel, add suffix Z (e.g. MP24895GQZ) PACKAGE REFERENCE TSOT23-5 QFN-6 (3x3mm) (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC V , V ........................................ -0.3V to +40V TSOT23-5 ............................ 110 ..... 55 ... C/W IN SW V ................................................. V -5V to V QFN-6 (3x3mm) .................... 50 ...... 14 ... C/W RS IN IN All Other Pins .............................. -0.3V to +6.3V (2) Notes: Continuous Power Dissipation (T = +25C) A 1) Exceeding these ratings may damage the device. TSOT23-5 .................................................. 1.1W 2) The maximum allowable power dissipation is a function of the maximum junction temperature T(MAX), the junction-to- J QFN-6 (3x3mm) ......................................... 2.5W ambient thermal resistance , and the ambient temperature JA Junction Temperature .............................. 150C T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX)=(T (MAX)- Lead Temperature ................................... 260C D J T )/ . Exceeding the maximum allowable power dissipation A JA Storage Temperature ............... -65C to +150C will cause excessive die temperature, and the regulator will go (3) into thermal shutdown. Internal thermal shutdown circuitry Recommended Operating Conditions protects the device from permanent damage. 3) The device is not guaranteed to function outside of its Supply Voltage V ............................. 6V to 36V IN operation conditions. Operating Junction Temp. (T ).. -40C to +125C J 4) Measured on JESD51-7 4-layer board. MP24895 Rev. 1.0 www.MonolithicPower.com 2 8/6/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved.