Update: 01 October, 2023
The LM3407 is a 350mA constant current output floating buck switching converter from Texas Instruments, designed to provide constant current to high power LEDs. It has an integrated power N-MOSFET that makes the application solution compact and easy to implement. An external 1% thick-film resistor allows the converter output voltage to adjust as needed to deliver constant current within 10% accuracy to a serially connected LED string of varying number and type. Converter switching frequency is adjustable from 300 kHz to 1 MHz. The LM3407 features a dimming input to enable LED brightness control by Pulse Width Modulation (PWM). Additionally, a separate enable pin allows for low power shutdown. An eMSOP-8 package provides excellent heat dissipation and thermal performance. Input UVLO and output open-circuit protection ensure a robust LED driver solution.
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MD5 Checksum: 635FE5CC067ECF368DC687E2DB92E8B4
Publication date: 04 May, 2012
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