ADI LT3791EFE

DC DC 控制器4.7V60V

Overview

The LT3791EFE is a synchronous 4-switch buck-boost LED driver controller. The controller can regulate LED current up to 52V of LED string with input voltages above, below, or equal to the output voltage. The constant-frequency, forced-continuous current mode architecture allows its frequency to be adjusted or synchronized from 200kHz to 700kHz. No top MOSFET refresh switching cycle is needed in buck or boost operation. With 60V input, 60V output capability and seamless transitions between operating regions, the LT3791EFE is ideal for LED driver applications in automotive, industrial, and even battery-powered systems.

For new designs we recommend the LT8391: 60V synchronous 4-switch, buck-boost LED controller due to its numerous performance improvements over the LT3791.

Features

True Color PWM™ Series
Available in the 38-TFSOP (0.173, 4.40mm Width) Exposed Pad package
Operating temperature of -40°C~125°C TJ
Frequency of 200kHz~700kHz
Output voltage of 5V

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LT3791EFE LED Driver ICs applications.

• Gallery lighting
• Museum lighting
• High-end retail lighting
• Medical surgery lighting
• Replacement lamps
• Panel lighting
• Down lights
• Linear fluorescent
• A- lamps
• General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights