NCP1608 Datasheet - ON Semiconductor

NCP1608 PFC Controller Utilizing a Transconductance Error Amplifier

Pin Name Function 1 FB The FB pin is the inverting input of the internal error amplifier. A resistor divider scales the output voltage to VREF to maintain regulation. The feedback voltage is used for overvoltage and undervoltage protections. The controller is disabled when this pin is forced to a.

NCP1608 Critical Conduction Mode PFC Controller Utilizing a Transconductance Error Amplifier The NCP1608 is an active power factor correction (PFC) controller specifically designed for use as a pre converter in ac dc adapters, electronic ballasts, and other medium power off line converters (typically up to 350 W). It uses critical conduction mode (CrM) to ensure near unity power factor across a wide range of input voltages and output power. The NCP1608 minimizes the numb.

NCP1608 Features

* making it an excellent choice for designing robust PFC stages. It is available in a SOIC

* 8 package. General Features

* Near Unity Power Factor

* No Input Voltage Sensing Requirement

* Latching PWM for Cycle

* by

* Cycle On Time Control (Voltage Mode)

NCP1608-ONSemiconductor.pdf