features and benefits
? quasi-resonant topology ic ? low emi noise and soft
switching
? bottom-skip mode ? improved system efficiency over
the entire output load by avoiding increase of switching
frequency
? auto-standby mode ? lowers input power at very light
output load condition
? avalanche-guaranteed mosfet ? improves system-level
reliability and does not require vdss derating
? 800 vdss / 0.66 ω rds(on)
? various protections ? improved system-level reliability
? pulse-by-pulse drain overcurrent limiting
? overvoltage protection (bias winding voltage sensing),
with latch
? overload protection with latch
? maximum on-time limit
off-line quasi-resonant switching regulators
typical application
not to scale
package: 7-pin to-3p