NCP1616 Datasheet (ON Semiconductor) - High Voltage High Efficiency Power Factor Correction Controller

NCP1616, High Voltage High Efficiency Power Factor Correction Controller

Pin Number Name Function 1 FB This pin receives a portion of the PFC output voltage for the regulation and the dynamic response enhancer (DRE) that speeds up the loop response when the output voltage drops below 95.5% of the regulation level.

VFB is also the input signal for the Soft *Ove

NCP1616 High Voltage High Efficiency Power Factor Correction Controller The NCP1616 is a high voltage PFC controller designed to drive PFC boost stages based on an innovative Current Controlled Frequency Foldback (CCFF) method.

In this mode, the circuit operates in critical conduction mode (CrM) when the inductor current exceeds a programmable value.

When the current is below this preset level, the NCP1616 linearly decays the frequency down to a minimum of about 26 kHz at the sinusoidal zero

NCP1616 Features

* necessary for robust and compact PFC stages, with few external components. General Features

* High Voltage Start

* Up Circuit with Integrated Brownout Detection

* Input to Force Controller into Standby Mode

* Skip Mode Near the Line Zero Crossing

* Fast Line / L