FEATURES
n Three Independent LED Driver Channels n Wide Input Voltage Range: 2.5V to 40V n VIN Transient Ride-Through Up to 60V n Rail-to-Rail LED Current Sense: 0V to 100V n 3000:1 PWM Dimming n TG Drivers for PMOS LED Disconnection n Operates in Boost, Buck Mode, Buck-Boost Mode, SEPIC or Flyback Topology n Open-LED Protection n Short-Circuit Protected Boost Capable n Fault Flags for Independent Channels n Programmable VIN Undervoltage and Overvoltage Lockout n Adjustable Switching Frequency: 100kHz to 1MHz n Synchronizeable to an External Clock n CTRL Pins Provide Analog Dimming n Programmable Soft-Start n Low Profile 52-Lead 7mm x 8mm QFN and 48-Lead Exposed Pad LQFP APPLICATIONS
n Automotive and Industrial Lighting n RGB Lighting n Billboards and Large Displays LT3797 Triple Output LED Driver DESCRIPTION
Controller The LT®3797 is a triple output DC/DC controller designed to drive three strings of LEDs. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages.
Analog Devices
