ha16174p Renesas Electronics Corporation., ha16174p Datasheet - Page 21

• Manufacturer Part Number: ha16174p
• Description: Power Factor Correction Controller Ic
• Manufacturer: Renesas Electronics Corporation.

HA16174P/FP
(3) PFC Shutdown
Full-wave rectified AC
Rev.1.00 Jan 06, 2006 page 21 of 36
PFC output voltage
By forcibly lowering the PFC-ON pin to 0.95 V, the PFC operation can be stopped even during the hold period.
Output on the OUT pin is stopped, the SS pin is reset, and the PFC operation stops. When the PFC-ON pin is driven
higher than 1.75 V, the IC is restarted in a soft-start operation.
PFC-ON
OUT
SS
Figure 8 PFC Shutdown Function Operation Waveform
0.95 V
1.75 V
Soft start