FAN6747 Datasheet, PDF (7/15 Pages) Fairchild Semiconductor – Highly Integrated Green-Mode PWM Controller

Electrical Characteristics
VDD=15V and TA=25°C, unless otherwise specified.
Symbol
Parameter
Conditions
Min. Typ. Max. Units
Figure 8. Brownout Behavior
Figure 9. VDD-AC and AC Recovery
Oscillator Section
fOSC
tJTR-1
tJTR-3
fOSC-G
VFB-N
Normal PWM Frequency
Center Frequency
(VFB>VFB-N)
Jitter Period 1
VFB > VFB-N
Jitter Period 3
VFB=VFB-G
Green-Mode Minimum Frequency
FB Threshold Voltage for
Frequency Reduction Beginning
Pin, FB Voltage
(VFB=VFB-N),
fOSC – 5KHz
Jitter Range
VFB-G
FB Threshold Voltage for Turn-Off ^{Pin, FB Voltage}
Jitter and Frequency Reduction ^(VFB=VFB-G)
Destination
Jitter Range
61
3.9
10.2
19
2.6
±3.7
2.1
© 2009 Fairchild Semiconductor Corporation
FAN6747 • Rev. 1.0.1
7
65
4.4
11.5
22
2.8
±4.2
2.3
±1.45
69
kHz
4.9
ms
12.8
ms
25
kHz
3.0
V
±4.7
kHz
2.5
V
kHz
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