FAN604H Datasheet - ON Semiconductor

FAN604H Offline Quasi-Resonant PWM Controller

Pin No. Pin Name Description 1 HV High Voltage. This pin connects to DC bus for high-voltage startup. 2 NC No Connect. Current Sense. This pin connects to a current-sense resistor to sense the MOSFET current for Peak-Current-Mode 3 CS control for output regulation. The current sense infor.

FAN604H Offline Quasi-Resonant PWM Controller The FAN604H is an advanced PWM controller aimed at achieving power density of ≥10W/in3 in universal input range AC/DC flyback isolated power supplies. It incorporates Quasi-Resonant (QR) control with proprietary Valley Switching with a limited frequency variation. QR switching provides high efficiency by reducing switching losses while Valley Switching with a limited frequency variation bounds the frequency band to overcome the inherent limitation .

FAN604H Features

* mWSaver® burst mode operation with extremely low operating current (300 μA) and significantly reduces standby power consumption to meet the most stringent efficiency regulations such as Energy Star’s 5-Star Level and CoC Tier II specifications. FAN604H includes several user configurable features aim

FAN604H-ONSemiconductor.pdf