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Производитель:Linear Technology
Серия:LT3763
Модель:LT3763IFE#PBF

60-вольтовый синхронный понижающий DC/DC контроллер для точной стабилизации тока светодиода до 20 А посредством быстрой ШИМ

Datasheets

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    FeaTures LT3763 60V High Current Step-Down LED Driver Controller DescripTion
    The LT®3763 is a fixed frequency, synchronous, step-down DC/DC controller designed to accurately regulate output currents up to 20A. The average current mode controller will maintain inductor current regulation over a wide output voltage range from 0V to 55V. Output current is set by analog voltages on the CTRL pins and an external sense resistor. Voltage regulation and overvoltage protection are set with a voltage divider from the output to the FB pin. The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin or with the SYNC pin and an external clock signal. Input and output current sensing provides input current limiting and an accurate measurement of these currents. The FBIN pin is provided for applications requiring a peak power tracking function. Additional features include an accurate external reference voltage for use with the CTRL pins, an accurate UVLO/ EN pin that allows for programmable UVLO hysteresis, a PWM driver for LED applications, output voltage fault detection, and thermal shutdown. Accurately Control Input and Output Current 3000:1 True Color PWMTM Dimming ±1.5% Voltage Regulation Accuracy ±6% Current Regulation Accuracy 6V to 60V Input Voltage Range Wide Output Range Up to 55V <2µA Shutdown Current Control Pin for Thermal Control of Load Current Input and Output Current Monitor and Limit Open, Short, and C/10 Fault Detection PWM Driver Output for LED Applications Thermally Enhanced 28-Lead FE Package applicaTions High Power Architectural Lighting Automotive Lighting Aviation and Marine Strobe Lights Solar-Powered Chargers, Laser Diodes L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and True Color PWM is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 7199560, 7321203 and others pending. Typical applicaTion
    20A, Pulse Width Modulated, Single LED Driver
    VIN 10V TO 30V 2.5m 84.5k 15.4k IVINP EN/UVLO 2.2µF VREF 45.3k CTRL2 470k 50k CTRL1 FBIN IVINMON ISMON PWM SYNC RT 82.5k 10nF SS LT3763 BOOST SW INTVCC 47.5k BG GND 50 1nF 50 1nF SENSE+ SENSE­ PWMOUT FAULT FB VC 59k 4.7nF 12.1k
    3763 TA01 1k 1µF 1k 100µF 4.7µF IVINN VIN TG 220nF 1.5µH 2.5m VOUT 6V, 20A MAXIMUM 220µF Ч2 22µF PWM Dimming
    PWM 10V/DIV VSW 50V/DIV IL 5A/DIV 5µs/DIV
    3763 TA01b 10 10 33nF 47.5k 3763fa For more information www.linear.com/LT3763 1 LT3763 absoluTe MaxiMuM raTings
    (Note 1) pin conFiguraTion
    TOP VIEW BG INTVCC VIN ...

Цены

    TSSOP
    ПоставщикПроизводительНаименованиеЦена
    ЭлитанLinear TechnologyLT3763IFE548 руб.
    КремнийLinear TechnologyLT3763IFE PBFпо запросу
    Подробнее об условиях поставки »

Варианты написания: LT3763IFEPBF, LT3763IFE PBF

Выписка из документа:
FeaTures LT3763 60V High Current Step-Down LED Driver Controller DescripTion
The LT®3763 is a fixed frequency, synchronous, step-down DC/DC controller designed to accurately regulate output currents up to 20A. The average current mode controller will maintain inductor current regulation over a wide output voltage range from 0V to 55V. Output current is set by analog voltages on the CTRL pins and an external sense resistor. Voltage regulation and overvoltage protection are set with a voltage divider from the output to the FB pin. The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin or with the SYNC pin and an external clock signal. Input and output current sensing provides input current limiting and an accurate measurement of these currents. The FBIN pin is provided for applications requiring a peak power tracking function. Additional features include an accurate external reference voltage for use with the CTRL pins, an accurate UVLO/ EN pin that allows for programmable UVLO hysteresis, a PWM driver for LED applications, output voltage fault detection, and thermal shutdown. Accurately Control Input and Output Current 3000:1 True Color PWMTM Dimming ±1.5% Voltage Regulation Accuracy ±6% Current Regulation Accuracy 6V to 60V Input Voltage Range Wide Output Range Up to 55V <2µA Shutdown Current Control Pin for Thermal Control of Load Current Input and Output Current Monitor and Limit Open, Short, and C/10 Fault Detection PWM Driver Outpu...

На английском языке: Datasheet Linear Technology LT3763IFE#PBF

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