FAN400A Fairchild Semiconductor, FAN400A Datasheet - Page 6

• Manufacturer Part Number: FAN400A
• Description: This highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters
• Manufacturer: Fairchild Semiconductor

© 2008 Fairchild Semiconductor Corporation
FAN400A Rev. 1.0.2
Electrical Characteristics
Unless otherwise noted, V
Oscillator Section
Output Section
Over Temperature Protection (OTP)
Symbol
DCY
V
RESTART
V
V
f
V
V
CLAMP
T
V
T
OSC-G
GATE-H
f
t
GATE-L
GATE-
OSC
HOP
S
f
f
OTP-
FB-N
FB-G
FB-Z
OTP
DV
DT
t
t
r
G
f
MAX
Frequency
Hopping Period
Green Mode Frequency
Green Mode Entry FB Voltage
Green Mode Ending FB Voltage
Zero Duty Cycle FB Voltage
Green Mode Modulation Slope
Frequency Variation vs. V
Frequency Variation vs. Temperature Deviation
Maximum Duty Cycle
GATE Low Voltage
GATE High Voltage
GATE Rising Time
GATE Falling Time
GATE Output Clamping Voltage
Protection Junction Temperature
Restart Junction Temperature
DD
=15V and T
Parameter
(Continued)
Center Frequency
Hopping Range
DD
A
Deviation
=25°C.
6
V
V
T
I
I
C
C
O
O
Conditions
A
DD
DD
L
L
=10mA
=-10mA
=-20 to 85°C
=1nF
=1nF
=10 to 22V
=20V
Min.
±4.1
14.5
150
2.3
60
40
68
70
16
8
V
Typ.
±4.6
17.0
0.75
200
140
110
2.6
FB-N
1.4
1.5
70
73
65
90
17
4
-
Max.
19.5
±5.1
100
250
110
2.9
5.0
1.5
70
78
18
2
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Hz/mV
Units
KHz
kHz
ms
ns
ns
°C
°C
%
%
%
V
V
V
V
V
V