The LT3791 uses four external switching MOSFETs and delivers from 5W to over 100W of continuous LED power with efficiencies up to 98.5%. LED current accuracy of ±6% ensures constant lighting while ±2% output voltage accuracy enables the converter to operate as a constant voltage source. The LT3791 utilizes either analog or PWM dimming as required by the application. Furthermore, its switching frequency can be programmed between 200kHz and 700kHz or synchronized to an external clock. Additional features include output disconnect, input and output current monitors, open and shorted LED detection and integrated fault protection.
The LT3791EFE is available in 38-lead thermally enhanced TSSOP package, priced starting at $4.75 each in 1,000-piece quantities. An extended temperature version, or I grade, the LT3791IFE, is also available, priced starting at $5.25 each in 1,000-piece quantities. A high temperature version, or H grade, the LT3791HFE, is also available, priced starting at $5.50 each in 1,000-piece quantities. There is also a high reliability MP grade version, LT3791MPFE, available starting at $14.75 each in 1,000-piece quantities. All versions are available from stock. For more information, visit www.linear.com/product/LT3791 .
For more information, visit www.linear.com