NCP1653A - Continuous Conduction Mode PFC Controller
Pin Symbol Name Function 1 FB / SD Feedback / This pin receives a feedback current IFB which is proportional to the PFC circuit output voltage.
Shutdown The current is for output regulation, output overvoltage protection (OVP), and output undervoltage protection (UVP).
When IFB goes above 10
NCP1653, NCP1653A Compact, Fixed-Frequency, Continuous Conduction Mode PFC Controller The NCP1653 is a controller designed for Continuous Conduction Mode (CCM) Power Factor Correction (PFC) boost circuits.
It operates in the follower boost or constant output voltage in 67 or 100 kHz fixed switching frequency.
Follower boost offers the benefits of reduction of output voltage and hence reduction in the size and cost of the inductor and power switch.
Housed in a DIP 8 or SO 8 packa
NCP1653A Features
* The NCP1653 is a driver for robust and compact PFC stages. Features
* IEC1000
* 3
* 2 Compliant
* Continuous Conduction Mode
* Average Current
* Mode or Peak Current
* Mode Operation
* Constant Output Voltage or Follower Boost Operation
