LM3424 controller for LED drivers

National Semiconductor introduce the LM3424 high voltage N-channel MosFET controller for LED drivers . LM3424 can be easily configured in buck, boost, buck-boost and SEPIC topologies .

LM3424 includes a thermal foldback for temperature management of the LEDs.

LM3424 led driver has a wide range input voltage from 4.5V to 75V which make it ideal for use in many ilumnation applications and other LED applications .

Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible.

The LM3424 uses standard peak current-mode control providing inherent input voltage feed-forward compensation for better noise immunity.

. The internal PWM controller of the LM3424 is designed for adjustable switching frequencies  up to 2.0 MHz and also external synchronization is possible. The controller is capable of high speed PWM dimming and analog dimming.

Additional features of the LM3424 LED driver are :  High-side adjustable current sense , 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 protection .

For more detail about how to design a application using the LM3424 led driver , consult the datasheet .