40VIN, 60VOUT LED Controller

The LT3755 and LT3755-1 are DC/DC controllers designed to operate as a constant-current source for driving high current LEDs They drive a low side external N-channel Power MOSFET from an internal regulated 7V supply. The xed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. A ground referenced voltage FB pin serves as the input for several LED protection features, and also makes it possible for the converter to operate as a constant-voltage source. A frequency adjust pin allows the user to program the frequency from 100kHz to 1MHz to optimize ef ciency, performance or external component size. The LT3755 LT3755-1 sense output current at the high side of the LED string. High side current sensing is the most exible scheme for driving LEDs allowing boost, buck mode or buck-boost mode con guration. The PWM input provides LED dimming ratios of up to 3000:1, and the CTRL input provides additional Analog dimming ca- pability. Both parts are available in the 16-lead (3mm 3mm) QFN package. By Linear Technology Corporation
LT3755 's PackagesLT3755 's pdf datasheet
LT3755EUD-PBF QFN
LT3755EUD-TRPBF QFN
LT3755IUD-PBF QFN
LT3755IUD-TRPBF QFN
LT3755EUD-1-PBF QFN
LT3755EUD-1-TRPBF QFN
LT3755IUD-1-PBF QFN
LT3755IUD-1-TRPBF QFN




LT3755 Pinout, Pinouts
LT3755 pinout,Pin out
This is one package pinout of LT3755,If you need more pinouts please download LT3755's pdf datasheet.

LT3755 Application circuits
LT3755 circuits
This is one application circuit of LT3755,If you need more circuits,please download LT3755's pdf datasheet.


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