ICE2QR1765G_14 Datasheet, PDF (19/27 Pages) Infineon Technologies AG – Off-Line SMPS Quasi-Resonant PWM Controller with integrated 650V CoolMOS? and startup cell in DSO-16/12

CoolSET™Q1
ICE2QR1765G
Electrical Characteristics
4.3.3 PWM Section
Parameter
Feedback Pull-Up Resistor
PWM-OP Gain
Offset for Voltage Ramp
Maximum on time in normal
operation
Symbol
R_FB
G_PWM
V_PWM
t_OnMax
Limit Values
min. typ. max.
14
23
33
3.18
3.3
-
0.6
0.7
-
22
30
41
Unit
kΩ
-
V
μs
Test Condition
4.3.4 Current Sense
Parameter
Peak current limitation in
normal operation
Leading Edge Blanking time
Peak Current Limitation in
Active Burst Mode
Symbol
V_CSth
t_LEB
V_CSB
Limit Values
min. typ. max.
0.97 1.03 1.09
200
330
460
0.29 0.34 0.39
Unit
V
ns
V
Test Condition
4.3.5 Soft Start
Parameter
Soft-Start time
soft-start time step
Internal regulation voltage
at first step
Internal regulation voltage
step at soft start
Symbol
t_SS
t_{SS_S1}
V_SS11
V_{SS_S1}
Limit Values
min. typ. max.
8.5
12
-
-
3
-
-
1.76 -
-
0.56 -
Unit
ms
ms
V
V
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
min. typ. max.
0.35
0.5 0.621
1.3
1.7
2.2
-
0.66
-
Unit
Test Condition
mA
mA
V I_zc=2.2mA, V_FB=3.8V
1_{The parameter is not subjected to production test - verified by design/characterization}
Data Sheet
19
V2.1, 2014-04-01