NCP1652A - High-Efficiency Single Stage Power Factor Correction
Pin 16 Pin 1 2 20 Pin 1 2 Symbol CT RAMP COMP Description An external timing capacitor (CT) sets the oscillator frequency.
A sawtooth between 0.2 V and 4 V sets the oscillator frequency and the gain of the multiplier.
A resistor (RRC) between this pin and ground adjust the amount of ramp compensatio
NCP1652, NCP1652A High-Efficiency Single Stage Power Factor Correction and Step-Down Controller The NCP1652 is a highly integrated controller for implementing power factor correction (PFC) and isolated step down ac dc power conversion in a single stage, resulting in a lower cost and reduced part count solution.
This controller is ideal for notebook adapters, battery chargers and other off line applications with power requirements between 75 W and 150 W.
The single stage is based
NCP1652A Features
* a proprietary Soft
* Skip™ to reduce acoustic noise at light loads. Other features found in the NCP1652 include a high voltage startup circuit, voltage feedforward, brown out detector, internal overload timer, latch input and a high accuracy multiplier. Features http://onsemi.com MARKING DIAGR
