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LT3954

Linear Technology
Part Number LT3954
Manufacturer Linear Technology
Description 40V LED Converter
Published Mar 19, 2013
Detailed Description LT3954 40VIN LED Converter with Internal PWM Generator FEATURES n n n n n n n n DESCRIPTION The LT®3954 is a DC/...
Datasheet PDF File LT3954 PDF File

LT3954
LT3954

Overview
LT3954 40VIN LED Converter with Internal PWM Generator FEATURES n n n n n n n n DESCRIPTION The LT®3954 is a DC/DC converter designed to operate as a constant-current source and constant-voltage regulator.
It features an internal low side N-channel MOSFET rated for 40V/5A.
The LT3954 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors.
The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages.
A voltage feedback pin serves as the input for several LED protection features, and also makes it possible for the converter to operate as a constant-voltage source.
A frequency adjust pin allows the user to program the frequency from 100kHz to 1MHz to optimize efficiency, performance or external component size.
The LT3954 senses output current at the high side or at the low side of the load.
The internal PWM generator can be configured to self...


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