ISL6755

ISL6755 NOT RECOMMENDED FOR NEW DESIGNS NO RECOMMENDED REPLACEMENT contact our Technical Support Center at 1-888-INTERSIL or www.intersil.com/tsc ZVS Full-Bridge PWM Controller with Average Current Limit DATASHEET FN6442 Rev.1.00 September 29, 2008 The ISL6755 is a high-performance extension of the Intersil family of full-bridge ZVS controllers. Like the ISL6753, it achieves ZVS operation by driving the upper bridge FETs at a fixed 50% duty cycle while the lower bridge FETS are trailing-edge modulated with adjustable resonant switching delays. Adding to the ISL6753’s feature set is average current monitoring. The signal may be used for average current limiting, current sharing circuits and average current mode control. This advanced BiCMOS design features low operating current, adjustable oscillator frequency up to 2MHz, adjustable soft-start, precision deadtime and resonant delay control, and short propagation delays. Additionally, Multi-Pulse Suppression ensures alternating out...