ICE1PD265G Infineon Technologies Corporation, ICE1PD265G Datasheet - Page 5

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

Pin 13 ISENSE (current sense input and CoolMOS source)
Controller current sense input and CoolMOS source are internaly connected via bonds.
ISENSE should be connected to an external sense resistor controlling the CoolMOS source current. The input
is internally clamped at -0.3V to prevent negative input voltage interaction. A leading edge blanking circuitry
suppresses voltage spiks when turning the MOSFET on.
Pin 14 Vcc (Positive voltage supply)
If Vcc exceeds the turn-on threshold the IC is switched on. When Vcc falls below the turn-off threshold it is
switched off and power consumption is very low. An auxilliary winding is charging a capacitor which provides
the supply current. A second 100nF ceramic capacitor should be added to Vcc to absorbe supply current
spikes required to charge the MOSFET gate capacitance.
Pin 15 DETIN (Zero current detector input)
DETIN is connected to an auxiliary winding monitoring the zero crossing of the inductor current.
Block Diagram
Version 1.0
0.2V
20V
VSENSE
10V
VCC
2.5V
12.5V
+
Enable
-
+
+
Voltage
-
-
UVLO
clamp
Amp
VA
VAOUT
2.2V
OVR
Reference
Voltage
-
Inhibit
+
GND
Multiplier
MULTIN
clamp
detin
10p
1.0
time delay
V
t
DETIN
dVA
Inhibit
multout
1V
5
=2us
20k
1.5
V
Detector
+
-
Current
+
+
t
Comp
-
LEB
LEB
t
=150ns
dsd
=70n
s
Restart
t
Timer
res
=150
us
Flip-Flop
RS
shut down
Drive
Gate
active
uvlo
ICE1PD265G
10
10 Sep 2001
ISENSE
MOS
Cool
DRAIN