Description
The STR-W6735 is a quasi-resonant topology IC designed for SMPS applications. It shows lower EMI noise characteristics than conventional PWM solutions, especially at greater than 2 MHz. It also provides a soft-switching mode to turn on the internal MOSFET at close to zero voltage (VDSbottom point) by use of the resonant characteristic of primary inductance and a resonant capacitor.

FEATUREs and Benefits
▪ Quasi-resonant topology IC Low EMI noise and soft switching
▪Bottom-skip operation Improved system efficiency over the entire output load by avoiding increase of switching frequency
▪ Standby burst mode operation => Lowers input power at very light output load condition
▪Avalanche-guaranteed MOSFET Improves system level reliability and does not require VDSS derating
▪ 500 V / 0.57 Ω, 160 W (120 VAC input)