LT3756IMSE-2#PBF - 

Led Driver, 1 Output, Boost, Buck, Buck-Boost, 6V-100V in, 1MHz switch, 100V out, MSOP-16

LT3756IMSE-2#PBF - Led Driver, 1 Output, Boost, Buck, Buck-Boost, 6V-100V in, 1MHz switch, 100V out, MSOP-16

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Product Information

Boost, Buck, Buck-Boost, Flyback, SEPIC
MSL 1 - Unlimited
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Product Overview

The LT3756IMSE-2#PBF is a DC/DC Controller designed to operate as a constant-current source for driving high current LEDs. It drives a low-side external N-channel power MOSFET from an internal regulated 7.15V supply. The fixed 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 efficiency, performance or external component size. The controller senses output current at the high-side of the LED string. High-side current sensing is the most flexible scheme for driving LEDs, allowing boost, buck mode or buck-boost mode configuration. The PWM input provides LED dimming ratios of up to 3000:1 and the CTRL input provides additional analogue dimming capability.
  • Constant-current and constant-voltage regulation
  • Open LED protection
  • Programmable under-voltage lockout with hysteresis
  • Improved open LED status pin
  • PWM disconnect switch driver
  • CTRL pin provides analogue dimming
  • Low shutdown current - <1µA
  • Programmable soft-start


LED Lighting, Power Management

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