ICE1QS01G Infineon Technologies, ICE1QS01G Datasheet - Page 13

• Manufacturer Part Number: ICE1QS01G
• Description: IC PFC CONTROLLER DSO8
• Manufacturer: Infineon Technologies

Specifications of ICE1QS01G

• Current - Startup: 60µA
• Voltage - Supply: 9 V ~ 20 V
• Operating Temperature: -25°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: DSO-8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Mode: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SP000081002

Restart timer
If voltage V
switch gate drive OUT high every 50 µs and the minimum switching frequency is about 20 kHz.
Restart pulse is inhibited if V
until the transformer is discharged.
VCC overvoltage protection
If V
when V
Overvoltage fault comparator (OFC)
With an external sense resistor connected to pin OFC primary current can be sensed directly. If the
sensed current exceeds the internal V
latch occurs when V
Notice: If this comparator is not used pin OFC has to be connected to ground.
Mains undervoltage
Power supplies must be shut down when mains voltage is below a certain limit to avoid too long on-
time of MOS-FET switch, which would lead to a switching frequency in audible spheres. Mains und-
ervoltage is sensed during the off-time of the MOS-FET switch. If the current flowing into pin PCS is
smaller than 100 uA, then the output is latched and cannot be switched to high state.
Diagram Mains Undervoltage Lockout Current
Version 1.4
Ipcs/µA
CC
exceeds the V
130
120
110
100
CC
90
80
70
60
50
is falling below V
-40
RZI
is lower than 50 mV and gate drive OUT is low an internally created restart pulse will
-30
-20
CC
CCD
is falling below V
-10
threshold a latch is set and the gate is disabled. Reset of latch occurs
CCon
RZI
0
is higher than 50 mV. So the MOS transistor cannot be switched on
- V
10
CCBHY.
20
OFC
CCon
30
13
threshold a latch is set and gate is disabled. Reset of
- V
40
CCBHY
50
.
60
70
80
90
100
110
120
Temp./°C
ICE1QS01
130
27 Apr 2004
140
150