ICE3DS01L Datasheet, PDF (18/27 Pages) Infineon Technologies AG – Off-Line SMPS Current Mode Controller with integrated 500V Startup Cell

F3
ICE3DS01L/LG
Electrical Characteristics
4.3.3
PWM Section
Parameter
Symbol
Fixed Oscillator Frequency
f_OSC1
f_OSC2
Max. Duty Cycle
D_max
Min. Duty Cycle
D_min
PWM-OP Gain
A_V
Max. Level of Voltage Ramp
V_Max-Ramp
V_FB Operating Range Min Level V_FBmin
V_FB Operating Range Max level V_FBmax
min.
98
102
0.67
0
3.5
-
0.3
-
Limit Values
typ.
max.
110
119
110
117
0.72 0.77
-
-
3.7
3.9
0.85 -
0.7
-
-
4.75
Feedback Pull-Up Resistor
R_FB
16
20
27
Soft-Start Pull-Up Resistor
R_SoftS
39
50
62
1) _{Design characteristic (not meant for production testing)}
Unit
kHz
kHz
V
V
V
kΩ
kΩ
Test Condition
T_j = 25°C
V_FB < 0.3V
CS=1V limited by
Comparator C4¹⁾
4.3.4
Control Unit
Parameter
Symbol
Deactivation Level for SoftS
Comparator C7 by C2
V_SoftSC2
Clamped V_SoftS Voltage during V_SoftSclmp
Normal Operating Mode
Activation Limit of
Comparator C3
V_SoftSC3
SoftS Startup Current
Active Burst Mode Level for
Comparator C6
I_SoftSstart
V_FBC6
Active Burst Mode Level for
Comparator C5
V_FBC5
Over Load & Open Loop
Detection Limit for
Comparator C4
V_FBC4
Overvoltage Detection Limit
Latched Thermal Shutdown
Spike Blanking
Power Down Reset for Latched
Mode
V_VCCOVP
T_jSD
t_Spike
V_VCCPD
min.
3.85
Limit Values
typ.
max.
4.00 4.15
4.23 4.40 4.57
5.20 5.40 5.60
-
1.9
-
1.23 1.32 1.40
3.85 4.00 4.15
4.62 4.80 4.98
20
21
22
130
140
150
-
8.0
-
4.0
6.0
7.5
Unit
V
V
V
mA
V
V
V
V
°C
µs
V
Test Condition
V_FB > 5V
V_FB < 4.5V
V_FB > 5V
V_SoftS = 0V
V_SoftS > 5.6V
After Active Burst
Mode is entered
V_SoftS > 5.6V
V_FB > 5V
guaranteed by design
After Latched Off Mode
is entered
Note: The trend of all the voltage levels in the Control Unit is the same regarding the deviation except V_VCCOVP
and V_VCCPD
Version 2.0
18
15 May 2003