General Description
●The LM3424 is a versatile high voltage N-channel MosFET controller for LED drivers . It can be easily configured in buck, boost, buck-boost and SEPIC topologies. In addition, the LM3424 includes a thermal foldback feature for temperature management of the LEDs. This flexibility, along with an input
●voltage rating of 75V, makes the LM3424 ideal for illuminating LEDs in a large family of applications.
●Features
●■ LM3424Q is an Automotive Grade product that is AEC-Q100 grade 1 qualified (-40°C to +125°C operating junction temperarure)
●■ VIN range from 4.5V to 75V
●■ High-side adjustable current sense
●■ 2Ω, 1A Peak MosFET gate driver
●■ Input under-voltage and output over-voltage protection
●■ PWM and analog dimming
●■ Cycle-by-cycle current limit
●■ Programmable slope compensation
●■ Programmable, synchronizable switching frequency
●■ Programmable thermal foldback
●■ Programmable softstart
●■ Precision voltage reference
●■ Low power shutdown and thermal shutdown
●Applications
●■ LED Drivers - Buck, Boost, Buck-Boost, and SEPIC
●■ Indoor and Outdoor Area SSL
●■ Automotive
●■ General Illumination
●■ Constant-Current Regulators
