LT3791

PRODUCTION

60V 4-Switch Synchronous Buck-Boost LED Driver Controller

Part Models
8
1ku List Price
Starting From $5.66
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Part Details

  • 4-Switch Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT
  • Synchronous Switching: Up to 98.5% Efficiency
  • Wide VIN Range: 4.7V to 60V
  • Wide VOUT Range: 0V to 60V (52V LED)
  • ±6% LED Current Accuracy: 0V ≤ VLED < 52V
  • True Color PWM and Analog Dimming
  • LED and Input Current Regulation with Current Monitor Outputs
  • No Top MOSFET Refresh in Buck or Boost
  • VOUT Disconnected From VIN During Shutdown
  • Open or Shorted LED Fault Protection
  • Capable of 100W or Greater per IC
  • 38-Lead TSSOP with Exposed Pad
LT3791
60V 4-Switch Synchronous Buck-Boost LED Driver Controller
98.5% Efficient 100W (33.3V 3A) Buck-Boost LED Driver Efficiency vs VIN Product Package 1
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

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Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
DC1666A

LT3791 Demo Board | 4.7V to 60V Input Drives 25V of LEDs at 2A (Scalable to 100W)

Product Details

Demonstration circuit DC1666A is a synchronous four-switch buck-boost LED driver controller. It accepts an input voltage from 4.7V to 60V, and drives up to 25V of LEDs at 2A. DC1666A features both PWM and analog dimming of the LED string. It has an OPENLED flag that indicates when the LED string has been removed and it has a SHORTLED flag that indicates that the output has been shorted to GND. In both cases, the IC remains in control and well protected.

DC1666A
LT3791 Demo Board | 4.7V to 60V Input Drives 25V of LEDs at 2A (Scalable to 100W)
DC1666A Demo Board DC1666A Demo Board DC1666A Demo Board DC1666A Demo Board DC1666A - Schematic

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