FAN7601B Fairchild Semiconductor, FAN7601B Datasheet - Page 5

• Manufacturer Part Number: FAN7601B
• Description: The FAN7601B is a programmable frequency green current mode PWM controller
• Manufacturer: Fairchild Semiconductor

© 2008 Fairchild Semiconductor Corporation
FAN7601B • Rev.1.0.2
Electrical Characteristics
T
Notes:
2.
3.
Reference Section
Oscillator Section
PWM Section
Burst Mode Section
Soft-Start Section
Protection Section
UVLO Section
Total Current Section
Output Section
Startup Section
A
=-25C~125C, V
Symbol
V
V
V
V
V
V
These parameters, although guaranteed, are not 100% tested in production.
It is recommended to connect a 1Mresistor between the Latch/SS pin and GND to prevent abnormal operation of
the latch protection by noise coupling.
V
D
V
V
D
f
ST
CS/FB1
CS/FB2
CS/FB3
V
V
LATCH
V
V
V
I
OSC
I
I
OSC
MAX
OVP
REF
SS
OP
REF1
REF2
MIN
t
t
str
OH
OL
SL
tH
r
tL
f
V
Reference Output Voltage
Line Regulation
Load Regulation
Initial Accuracy
Voltage Stability
Amplitude
CS/FB Threshold Voltage1
Maximum Duty Cycle
Minimum Duty Cycle
CS/FB Threshold Voltage2
CS/FB Threshold Voltage3
Soft-Start Current
Soft-Start Limit Voltage
Latch Voltage
Over-Voltage Protection
Start Threshold Voltage
Minimum Operating Voltage
Operating Supply Current
Low Output Voltage
High Output Voltage
Rising Time
Falling Time
V
STR
CC
Startup Current
=14V, R
(2)
(2)
Parameter
T
=9.5k, C
(3)
T
(2)
(2)
=2.2nF unless otherwise specified.
I
V
I
V
V
T
V
I
T
T
T
T
V
O
O
SS
A
CC
CC
pin4 peak-to-peak
pin3
A
A
A
A
STR
=1mA
=1mA ~ 10mA
=25°C
5
=25C, I
=25C, I
=25C, C
=25C, C
=1A
=10V~18V
=10V~18V
=GND
=30V, T
Conditions
O
O
I
I
=100mA
=-100mA
=1nF
=1nF
A
=25°C
Min.
0.77
2.25
11.5
4.85
0.7
1.2
0.5
0.9
18
11
90
92
9
7
Typ.
5.00
1.25
0.97
2.50
12.0
100
1.0
1.0
0.9
1.5
2.0
1.0
95
12
19
12
45
35
10
20
8
3
Max.
5.15
1.17
2.75
14.0
110
www.fairchildsemi.com
150
150
1.5
1.1
1.1
1.8
2.5
1.5
20
30
98
15
20
13
0
9
4
Unit
kHz
mV
mV
mA
mA
A
%
%
%
ns
ns
V
V
V
V
V
V
V
V
V
V
V
V