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EV3386DR-00A データシート(PDF) 1 Page - Monolithic Power Systems |
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EV3386DR-00A データシート(HTML) 1 Page - Monolithic Power Systems |
1 / 4 page EV3386DR-00A 6 string White LED Driver Evaluation Board EV3386DR-00A Rev.1.0 www.MonolithicPower.com 1 10/16/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2009 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The EV3386DR-00A is an evaluation board for the MP3386DR, a step-up converter designed for large liquid-crystal displays that employ an array of LEDs as the light source. It can drive up to 6 strings in parallel and 10 LEDs per string. The MP3386 uses internal switch current mode, fixed frequency architecture and includes current ballast in each string terminal, which achieves 3% current regulation accuracy between strings. Low feedback voltage at each LED string help reduce power loss and improve efficiency. The MP3386 has multiple features to protect the converter from fault conditions, including under- voltage lockout, current limiting, over voltage, short LED, open LED and thermal shut-down protection. The MP3386 is available in small QFN24 (4mmx 4mm) package. ELECTRICAL SPECIFICATIONS Parameter Symbol Value Units Input Voltage VIN 4.5 – 25 V LEDs # 6 string parallel and 10 LEDs each string LED Current ILED 20/string mA FEATURES • 4.5V to 25V Input Voltage Range • Up to 89% Efficiency • Programmable Over Voltage Protection • Drives up to 6 Strings Parallel and 10 LEDs in Series. • 3% Current Regulation Accuracy Between Strings • Selectable Switching Frequency: 1.25MHz and 625kHz • Open and Short LED Load Protection • Thermal Shutdown APPLICATIONS • Notebook PC • Small LCD TV • Handy Terminals Display • Automotive Systems and Tablet Computer “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. EV3386DR-00A EVALUATION BOARD (L x W x H) 7.3cm x 2.0cm x 1.0cm Board Number MPS IC Number EV3386DR-00A MP3386DR |
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