ICE1PD265G Infineon Technologies Corporation, ICE1PD265G Datasheet - Page 8

• Manufacturer Part Number: ICE1PD265G
• Description: Power Factor Controller + Cool- Mos Boostset Ic For High Power Factor And Low Thd
• Manufacturer: Infineon Technologies Corporation

ICE1PD265G
Undervoltage Lockout
An undervoltage lockout circuitry switches the IC on when Vcc reaches the upper threshold V
CCH
and switches the IC off when Vcc is falling below the lower threshold V
. During start up the sup-
CCL
ply current is less then 100uA.
An internal voltage clamp has been added to protect the IC from Vcc overvoltage condition. When
using this clamp special care must be taken on power dissipation.
Start up current is provided by an external start up resistor which is connected from the AC line to
the input supply voltage Vcc and a storage capacitor which is connected from Vcc to ground. Be
aware that this capacitor is discharged befor the IC is plugged into the application board. Otherwise
the IC can be destroyed due to the high capacitor voltage.
Bootstrap power supply is created with the previous mentioned auxiliary winding and a diode (see
application circuit).
CoolMOS
=to reduce power dissipation.
The CoolMOS is designed for very low R
DSon
Version 1.0
8
10 S ep 2001