ha16174p Renesas Electronics Corporation., ha16174p Datasheet - Page 26

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

HA16174P/FP
6. IC Shutdown Function
When the DELAY pin is pulled up to 4 V, the IC shutdown function operates. During shutdown, the IC enters the
standby state. To reset the circuit from the shutdown state, the voltage on VCC must be lowered to 4 V or less. After
this reset, when the VCC pin voltage reaches 10.5 V, the IC is restarted.
VCC
9 V
10.5 V
4.0 V
4 V
DELAY
Latched state
Internal latch
VREF
Figure 13 Waveform of Operations in IC Shutdown
Rev.1.00 Jan 06, 2006 page 26 of 36