ICE1QS01 Datasheet, PDF (4/21 Pages) Infineon Technologies AG – Controller for Switch Mode Power Supplies Supporting Low Power Standby and Power Factor Correction (PFC)

ICE1QS01
Block Diagram
VCC
PCS
Foldback
Point Corr.
20V
Overvoltage
- Protection
+
UVLO
+
-
SRC ⁺
-
2V
RZI
50mV
+
-
5.7V
-
+
1V
OFC
+
1V -
+
5V _-
+
-
1V
-
1.5V
+
Burst-Mode
Reference
Voltage and
Current
Ringing
Suppression
Time
Start
5V
+
4.8V _-
+
4.5V _-
+
3.5V _-
50µs Timer
Latch
50ms Timer
Primary
Regulation
Digital Processing
5V
20k
ZC-Counter
UP/DO-Counter
S Q ^SET
Power
Driver
RQ
CLR
OUT
D Q ^SET
LQ
CLR
GND
Version 1.4
4
27 Apr 2004