F3 PWM controller
ICE3BS03LJG
Electrical Characteristics
4.3.3
PWM Section
Parameter
Symbol
Limit Values
Unit
Test Condition
min.
56.5
59.8
-
typ.
65
max.
Fixed Oscillator Frequency
fOSC1
fOSC2
fjitter
73.7
70.2
-
kHz
kHz
kHz
65.0
±2.6
0.75
Tj = 25°C
Tj = 25°C
Frequency Jittering Range
Max. Duty Cycle
Dmax
0.70
0.80
Min. Duty Cycle
PWM-OP Gain
Dmin
0
3.0
-
-
-
VFB < 0.3V
AV
3.2
0.6
0.5
-
3.4
-
Voltage Ramp Offset
VOffset-Ramp
V
V
FB Operating Range Min Level VFBmin
FB Operating Range Max level VFBmax
-
-
V
V
-
4.3
22
V
CS=1V, limited by
Comparator C41)
FB Pull-Up Resistor
RFB
9
15.4
kΩ
1)
The parameter is not subjected to production test - verified by design/characterization
4.3.4
Soft Start time
Parameter
Symbol
Limit Values
Unit
Test Condition
min.
typ.
max.
Soft Start time
tSS
-
20
-
ms
Version 2.0
20
6 Dec 2007
INFINEON [ Infineon ]
