LT3597 - Linear

LT3597 60V Triple Step-Down LED Driver

LED Driver The LT®3597 is a 60V triple step-down LED driver capable of achieving 10,000:1 digital PWM dimming at 100Hz with fast NPN current sources driving up to 10 LEDs in each channel. LED dimming can also be achieved via analog control of the CTRL1-3 pin. The step-down switching frequency is programmed between 200kHz and 1MHz. The frequency is als.

Features

n Three 100mA Buck Regulators, Each Drives Up to 10 LEDs with Fast NPN Current Sources n Fast Current Sources for <1µs Pulse Widths (10,000:1 True Color PWM™ Dimming at 100Hz) n LEDs Disconnected in Shutdown n Adaptive VOUT for Increased Efficiency n 6V to 60V Input Voltage Range n ±2% LED Current Matching n External Resistor Sets LED Current for Each Channel n Internal Compensation and Soft-Start n Programmable Switching Frequency (200kHz to 1MHz) n Synchronizable to External Clock n Open LED Detection and Reporting n Shorted LED Pin Protection and Reporting n Programmable LED Th.