LM3424MH

The LM3424MH 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 device includes a thermal foldback feature for temperature management of the LEDs.

The features of LM3424MH can be summarized as:(1)VIN range from 4.5V to 75V; (2)High-side adjustable current sense; (3)2, 1A Peak MosFET gate driver; (4)Input under-voltage and output over-voltage protection; (5)PWM and analog dimming; (6)Cycle-by-cycle current limit; (7)Programmable slope compensation; (8)Programmable, synchronizable switching frequency; (9)Programmable thermal foldback; (10)Programmable softstart; (11)Precision voltage reference; (12)Low power shutdown and thermal shutdown.

The absolute maximum ratings of LM3424MH are:(1)VIN, EN, nDIM:-0.3V to 76.0V,-1 mA continuous; (2)OVP, HSP, HSN:-0.3V to 76.0V,-100 A continuous; (3)IS:-0.3V to 76.0V,-2V for 100 ns,-1 mA continuous; (4)VCC:-0.3V to 8.0V; (5)VS, TREF, TSENSE, TGAIN,COMP, CSH, RT, SLOPE, SS:-0.3V to 6.0V; (6)SS:-30 A to +30 A continuous; (7)GATE, DDRV:-0.3V to VCC,-2.5V for 100 ns,VCC+2.5V for 100 ns,-1mA to +1 mA continuous; (8)GND:-0.3V to 0.3V,-2.5V to 2.5V for 100 ns; (9)Maximum Junction Temperature:Internally Limited; (10)Storage Temperature Range:-65°C to +150°C; (11)Maximum Lead Temperature(Reflow and Solder):260°C; (12)Continuous Power Dissipation:Internally Limited; (13)ESD Susceptibility Human Body Model:2 kV.

If you want to know more information such as the electrical characteristics about the LM3424MH, please download the datasheet in www.seekic.com or www.chinaicmart.com .