ADI LT3743EUFD#PBF

Контроллер постоянного тока DC6V36V20A

Overview

The LT3743EUFD is a fixed frequency synchronous step-down DC/DC controller designed to drive high current LEDs. The average current mode controller will maintain inductor current regulation over a wide output voltage range of 0V to (VIN – 2V). LED dimming is achieved through analog dimming on the CTRL_L, CTRL_H and CTRL_T pins and with PWM dimming on the PWM and CTRL_SEL pins. Through the use of externally switched load capacitors, the LT3743EUFD is capable of changing regulated LED current levels within several μs, providing accurate, high speed PWM dimming between two current levels. The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin.

Additional features include voltage regulation and overvoltage protection set with a voltage divider from the output to the FB pin. Overcurrent protection is provided and set by the CTRL_H pin.

Features

Bulk Package
Available in the 28-WFQFN Exposed Pad package
Operating temperature of -40°C~125°C TJ
Frequency of 200kHz~1MHz
Output voltage of 5V
ALSO OPERATES IN ADJUSTABLE MODE FROM 0V TO 34V

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LT3743EUFD#PBF LED Driver ICs applications.

• 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
• Industrial LED Lighting: Image Recognition Devices