LT3744EUHE#TRPBF Description
The LT3744EUHE#TRPBF is a fixed frequency synchronous step-down DC/DC controller designed to drive a LED load at up to 20A continuous 40A pulsed. The peak current mode controller will maintain ±3% LED current regulation over a wide output voltage range, from VEE to VIN. By allowing VEE to float to negative voltages, several LEDs in series can be driven from a single Li-Ion battery with a simple, single step-down output stage. PWM dimming is achieved with the PWM pins.
LT3744EUHE#TRPBF Features
Ideal for Driving Up to 40A LEDs
Up to 3000:1 PWM Dimming
20:1 Analog Dimming
±3% Current Regulation Accuracy
±3% Voltage Regulation Accuracy
Unique Inverting Buck-Boost Topology Allows Grounded Heat Sink to Be Used for RGB LEDs
3.3V to 36V Input Voltage Range
Peak Current Mode with DC LED Current Sensing
Open and Shorted LED Protection and Fault Reporting
LT3744EUHE#TRPBF Applications
LED Driver for DLP Projectors
Heads-Up Displays
High Power LED
Automotive
Body electronics & lighting
Communications equipment
