The LT3474-1 from Linear Technology is a Step-Down LED Driver IC that operates at an input voltage range of 4 - 36 V. It has unique True Color PWM circuitry that delivers constant color with a 400:1 dimming range and prevents color shift due to LED current dimming. This LED driver IC has an adjustable switching frequency of 200 kHz to 2 MHz and a maximum duty cycle of 98%. It has an integrated boost diode and adjustable control for LED output current from 35 mA to 1 A. This LED driver IC uses small inductors & ceramic capacitors and has Open LED & short-circuit protection. It is available in an SSOP Thermally Enhanced SMT package and is ideal for automotive and avionic lighting, architectural detail lighting, constant current sources and display backlighting applications.
