FAN7601B(2011) Просмотр технического описания (PDF) - Fairchild Semiconductor
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FAN7601B Datasheet PDF : 10 Pages
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Electrical Characteristics
TA=-25C~125C, VCC=14V, RT=9.5k, CT=2.2nF unless otherwise specified.
Symbol
Parameter
Reference Section
VREF
Reference Output Voltage
VREF1 Line Regulation
VREF2 Load Regulation
Oscillator Section
fOSC
Initial Accuracy
STV
Voltage Stability
VOSC
Amplitude
PWM Section
VCS/FB1 CS/FB Threshold Voltage1
DMAX Maximum Duty Cycle
DMIN
Minimum Duty Cycle
Burst Mode Section
VCS/FB2
VCS/FB3
CS/FB Threshold Voltage2(2)
CS/FB Threshold Voltage3(2)
Soft-Start Section
ISS
Soft-Start Current
VSL
Soft-Start Limit Voltage(3)
Protection Section
VLATCH Latch Voltage
VOVP
Over-Voltage Protection
UVLO Section
VtH
Start Threshold Voltage
VtL
Minimum Operating Voltage
Total Current Section
IOP
Operating Supply Current
Output Section
VOL
Low Output Voltage
VOH
High Output Voltage
tr
Rising Time(2)
tf
Falling Time(2)
Startup Section
Conditions
IO=1mA
VCC=10V~18V
IO=1mA ~ 10mA
VCC=10V~18V
Vpin4 peak-to-peak
TA=25°C
Vpin3=GND
ISS=1A
TA=25C, IO=100mA
TA=25C, IO=-100mA
TA=25C, CI=1nF
TA=25C, CI=1nF
Min. Typ. Max. Unit
4.85 5.00 5.15 V
10
20 mV
20
30 mV
90 100 110 kHz
1.0
1.5
%
1.25
V
0.9 1.0 1.1
V
92
95
98
%
0
%
0.77 0.97 1.17 V
0.7
0.9
1.1
V
9
12
15 A
1.2
1.5
1.8
V
2.25 2.50 2.75 V
18
19
20
V
11
12
13
V
7
8
9
V
3
4
mA
2.0
2.5
V
11.5 12.0 14.0 V
45
150
ns
35
150
ns
Istr
VSTR Startup Current
VSTR=30V, TA=25°C
0.5
1.0
1.5 mA
Notes:
2. These parameters, although guaranteed, are not 100% tested in production.
3. It is recommended to connect a 1Mresistor between the Latch/SS pin and GND to prevent abnormal operation of
the latch protection by noise coupling.
© 2008 Fairchild Semiconductor Corporation
FAN7601B • Rev.1.0.2
5
www.fairchildsemi.com
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