Datasheet Summary
ZVS Full Bridge PWM Controller
The ISL6551IREC is a zero voltage switching (ZVS) full bridge PWM controller designed for isolated power systems. This part implements a unique control algorithm for fixed frequency ZVS current mode control, yielding high efficiency with low EMI. The two lower drivers are PWM-controlled on the trailing edge and employ resonant delay while the two upper drivers are driven at a fixed 50% duty cycle.
This IC integrates many Features in a 28 lead 6mmx6mm2 QFN package to yield a plete and sophisticated power supply solution. Control Features include programmable softstart for controlled start-up, programmable resonant delay for zero voltage switching,...