LT3763EFE#PBF

LINEAR TECHNOLOGY  LT3763EFE#PBF  发光二极管驱动器, 1输出, 降压逐步下降, 6V-60V输入, 1MHz开关, 20A输出, TSSOP-28

The is a 60V High Current Step-down LED Driver 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 0 to 55V. Output current is set by analogue 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 and thermal shutdown.

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Accurately control input and output current

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3000:1 True colour PWM™ dimming

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±1.5% Voltage regulation accuracy

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±6% Current regulation accuracy

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Wide output range up to 55V

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<2µA Shutdown current

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Control pin for thermal control of load current

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Input and output current monitor and limit

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Open, short and C/10 fault detection

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PWM driver output for LED applications