The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
DATA SHEET www.onsemi.com
Critical Conduction Mode PFC Controller
FAN7930C
SOIC8 CASE 751EB
Description The FAN7930C is an active power factor correction (PFC)
controller for boost PFC applications that operate in critical conduction mode (CRM). It uses a voltage−mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn−off signal. Because the voltage−mode CRM PFC controller does not need rectified AC line voltage information, it saves the power loss of an input voltage−sensing network necessary for a current−mode CRM PFC controller.
FAN7930C provides over−voltage protection (OVP), open−feedback protection, over−current protection (OCP), input−voltage−absent detection, and under−voltage lockout protection (UVLO).