DC1160A

DC1160A is a demonstration circuit featuring LT®3518. This is a full-featured LED driver with 2.3A switch current. The board is optimized to drive a 330mA LED string with a total LED voltage between the input voltage and 40V in a boost topology. The high input voltage range, high efficiency low side internal 2.3A NPN power switch, low voltage floating current sense amplifier, soft-start, high side PMOS PWM gate driver, high PWM dimming ratio, overvoltage protection, shutdown control pin, analogue LED current dimming control, and externally programmable switching frequency (with sync) make the LT3518 an extremely versatile and powerful LED driving IC. The LT3518 has a 45V switch with 2.3A peak switch current limit rating. DC1160 has overvoltage protection at 40V if the LEDs are open or not properly attached to the terminals on the PCB. The shutdown function is activated by pulling the shutdown terminal to ground.