ICE2QR0665G Datasheet, PDF (14/21 Pages) Infineon Technologies AG – Off-Line SMPS Quasi-Resonant PWM Controller with integrated 650V CoolMOS® and startup cell in DSO-16/12

4.3.3
PWM Section
Parameter
Symbol
Feedback Pull-Up Resistor
PWM-OP Gain
Offset for Voltage Ramp
Maximum on time in normal
operation
4.3.4
Current Sense
Parameter
R_FB
G_PWM
V_PWM
t_OnMax
Symbol
Peak current limitation in normal
operation
Leading Edge Blanking time
Peak Current Limitation in Active
Burst Mode
V_CSth
t_LEB
V_CSB
4.3.5
Soft Start
CoolSET^® - Q1
ICE2QR0665G
Electrical Characteristics
Limit Values
Unit
min.
typ.
max.
14
23
33
k
3.18
3.3
-
-
0.6
0.7
-
V
22
30
41
ms
Test Condition
Limit Values
Unit
Test Condition
min.
typ.
max.
0.97
1.03
1.09
V
200
330
460
ns
0.29
0.34
0.39
V
Parameter
Symbol
Soft-Start time
soft-start time step
Internal regulation voltage at first
step
Internal regulation voltage step at
soft start
t_SS
t_{SS_S1)}
V_SS11)
V_{SS_S1)}
Limit Values
Unit
min.
typ.
max.
8.5
12
-
ms
-
3
-
ms
-
1.76
-
V
-
0.56
-
V
1) _{The parameter is not subjected to production test - verified by design/characterization}
Test Condition
4.3.6
Foldback Point Correction
Parameter
Symbol
ZC current first step threshold
ZC current last step threshold
CS threshold minimum
I_{ZC_FS}
I_{ZC_LS}
V_CSMF
Limit Values
Unit
min.
typ.
max.
0.350 0.5
0.621 mA
1.3
1.7
2.2
mA
-
0.66
-
V
Test Condition
I_zc=2.2mA, V_FB=3.8V
Version 2.0
14
July 4, 2011