?2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN7930C " Rev. 1.0.2
5
Electrical Characteristics
V
CC
= 14 V and T
A
= -40癈~+125癈, unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max. Unit
V
CC
Section
V
START
tart Threshold Voltage
V
CC
Increasing
11
12
13
V
V
STOP
top Threshold Voltage
V
CC
Decreasing
7.5
8.5
9.5
V
HY
UVLO
UVLO Hysteresis
3.0
3.5
4.0
V
V
Z
ener Voltage
I
CC
=20 mA
20
22
24
V
V
OP
Recommended Operating Range
13
20
V
Supply Current Section
I
START
tartup Supply Current
V
CC
=V
START
-0.2 V
120
190
礎
I
P
eratin Su l Current
Out ut Not Switchin
1.5
3.0
mA
I
DOP
Dynamic Operating Supply Current 50 kHz, C
I
=1 nF
2.5
4.0
mA
I
OPDIS
perating Current at Disable
V
INV
=0 V
90
160
230
礎
Error Amplifier Section
V
REF1
oltage Feedback Input Threshold1 T
A
=25癈
2.465
2.500
2.535
V
DV
REF1
Line Regulation
V
CC
=14 V~20 V
0.1
10.0
mV
DV
REF2
emperature Stability of V
REF1
(4)
20
mV
I
EA,BS
Input Bias Current
V
INV
=1 V~4 V
-0.5
0.5
礎
I
EAS,SR
utput Source Current
V
INV
=V
REF
-0.1 V
-12
礎
I
EA
K
ut ut Sink Current
V
INV
=V
REF
+0.1 V
12
A
V
EAH
utput Upper Clamp Voltage
V
INV
=1 V, V
CS
=0 V
6.0
6.5
7.0
V
V
EAZ
ero-Duty Cycle Output Voltage
0.9
1.0
1.1
V
g
m
ransconductance
(4)
90
115
140
祄ho
Maximum On-Time Section
t
ON,MAX1
Maximum On-Time Programming 1 T
A
=25癈, V
ZCD
=1 V
35.5
41.5
47.5
祍
t
ON,MAX2
Maximum On-Time Programming 2
T
A
=25癈,
I
ZCD
=0.469 mA
11.2
13.0
14.8
祍
Current-Sense Section
V
CS
urrent-Sense Input Threshold
oltage Limit
0.7
0.8
0.9
V
I
CS,BS
Input Bias Current
V
CS
=0 V~1 V
-1.0
-0.1
1.0
礎
t
CS,D
urrent-Sense Delay to Output
(4)
dV/dt=1 V/100 ns,
from 0 V to 5 V
350
500
ns
Continued on the following page&
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