Datasheet

CoolSET
®
-F3
ICE3A1065ELJ
Electrical Characteristics
Version 2.3 21 19 Nov 2012
4.3.2 Internal Voltage Reference
Parameter Symbol Limit Values Unit Test Condition
min. typ. max.
Trimmed Reference Voltage V
REF
4.90 5.00 5.10 V measured at pin FB
I
FB
= 0
4.3.3 PWM Section
Parameter Symbol Limit Values Unit Test Condition
min. typ. max.
Fixed Oscillator Frequency f
OSC1
87 100 113 kHz
f
OSC2
92 100 108 kHz T
j
= 25°C
Frequency Jittering Range f
jitter
- ±4.0 - kHz T
j
= 25°C
Max. Duty Cycle D
max
0.70 0.75 0.80
Min. Duty Cycle D
min
0 - - V
FB
< 0.3V
PWM-OP Gain A
V
3.0 3.2 3.4
Voltage Ramp Offset V
Offset-Ramp
- 0.6 - V
V
FB
Operating Range Min Level V
FBmin
- 0.5 - V
V
FB
Operating Range Max level V
FBmax
- - 4.3 V CS=1V, limited by
Comparator C4
1)
1)
The parameter is not subjected to production test - verified by design/characterization
FB Pull-Up Resistor R
FB
9 15.4 22 kΩ
4.3.4 Soft Start time
Parameter Symbol Limit Values Unit Test Condition
min. typ. max.
Soft Start time t
SS
- 20.0 - ms