The NCP1653 is a Power Factor Controller to efficiently
drive Continuous Conduction Mode (CCM) step?up
pre?converters. As shown by the ON Semiconductor
application note AND8184/D, that details the four key steps
to design a NCP1653 driven PFC stage, this circuit
represents a major leap towards compactness and ease of
implementation.
Housed in a DIP8 or SO?8 package, the circuit minimizes
the external components count without sacrificing
performance and flexibility. In particular, the NCP1653
integrates all the key protections to build robust PFC stages
like an effective input power runaway clamping circuitry.
When needed or wished, the NCP1653 also allows
operation in Follower Boost mode(1) to drastically lower the
pre?converter size and cost, in a straight?forward manner.
For more information on this device, please refer to the
ON Semiconductor data sheet NCP1653/D.
The board illustrates the circuit capability to effectively
drive a high power, universal line application. More
specifically, it is designed to meet the following
specifications: