LT3795EFE#PBF - 

Led Driver, 1 Output, Boost, Buck, SEPIC, 4.5V-110V in, 1MHz switch, TSSOP-28

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Product Information

Boost, Buck, Buck-Boost, SEPIC
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Product Overview

The LT3795EFE#PBF is a DC/DC Controller designed to regulate a constant-current or constant-voltage and is ideal for driving LEDs. It drives a low-side external N-channel power MOSFET from an internal regulated 7.7V supply. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Spread spectrum frequency modulation can be activated for improved electromagnetic compatibility performance. The ground referred voltage FB pin serves as the input for several LED protection features and also allows the converter to operate as a constant-voltage source. The maximum output current is set by an external resistor and the output current amplifier has a rail-to-rail common mode range. The LT3795 also includes a separate input current sensing amplifier that is used to limit input current. The TG pin inverts and level shifts the PWM signal to drive the gate of the external PMOS.
  • 3000:1 True colour PWM™ dimming
  • Input and output current reporting
  • PMOS switch driver for PWM and output disconnect
  • Internal spread spectrum frequency modulation
  • Programmable input current limit
  • CTRL inputs linearly adjust LED current
  • Programmable open LED protection with OPENLED flag
  • Short-circuit protection and SHORTLED flag
  • Programmable under-voltage lockout with hysteresis
  • Soft-start with programmable fault restart timer
  • C/10 Detection for battery charging


LED Lighting, Consumer Electronics


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