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LT3922 500mA Boost LED Driver Using Pulse Duty Cycle CTRL Input

5llflmA Boost LED Driver Using Pulse Duty Cycle CTRL Input

The LT3922 is a monolithic, synchronous, step-up DC/DC converter that utilizes fixed-frequency, peak current control and provides PWM dimming for a string of LEDs. The LED current is programmed by an analog voltage or the duty cycle of pulses at the CTRL pin. The LT3922 will maintain ±2% current regulation through an external sense resistor over a wide range of output voltages.