LM3421 Datasheet | Texas Instruments

Product Folder Order Now Technical Documents Tools & Software Support & munity LM3421, LM3423 SNVS574G - JULY 2008 - REVISED JULY 2019 LM342x N -Channel Controllers for Constant-Current LED Drivers 1 Features - 1 VIN Range From 4.5 V to 75 V - High-Side Adjustable Current Sense - 2-Ω, 1-A Peak MOSFET Gate Driver - Input Undervoltage and Output Overvoltage Protection - PWM and Analog Dimming - Cycle-by-Cycle Current Limit - Programmable Switching Frequency - Zero Current Shutdown and Thermal Shutdown - LED Output Status Flag (LM3423 and LM3423-Q0 Only) - Fault Status Flag and Timer(LM3423 and LM3423-Q0 Only) 2 Applications - LED Drivers: Buck, Boost, Buck-Boost, and SEPIC - Indoor and Outdoor Area SSL - Automotive - General Illumination - Constant-Current...