The LT3797 is designed so that each channel can use the most suitable configuration to drive its LED string, whether step-up, step-down, and SEPIC or a combination of these. Its high-side current sense enables each channel to be used in the same or different configurations while rail-to-rail current sense enables outputs from 0V to 100V, offering a wide range of design flexibility. Other features include overvoltage and undervoltage lockout, 20:1 analog diming via the CTRL pin and external synchronization.
The LT3797EUKG is available from stock in a thermally enhanced 52-lead 7mm x 8mm QFN package. 1,000-piece pricing starts at $4.95 each and it is available from stock. The LT3797IUKG is tested and guaranteed to operate from a -40°C to 125°C operating junction temperature. It’s priced at $5.54 each in 1,000-piece quantities and is also available from stock. For more information, visit www.linear.com/product/LT3797