FA551x ETC, FA551x Datasheet - Page 5

• Manufacturer Part Number: FA551x
• Description: CMOS IC For Switching Power Supply Control
• Manufacturer: ETC

Oscillation frequency (f
timing resistor resistance (R
Oscillation frequency (f
junction temperature (Tj)
Maximum duty cycle (D
FA5510/14
Characteristic curves (V
101.5
100.5
1000
98.5
99.5
102
101
100
100
99
10
49
48
47
46
45
44
43
42
1
–50
1
1
0
OSC
MAX
10
10
) vs.
OSC
) vs. timing resitor resistance (R
T
CC
)
R
) vs.
Tj (˚C)
=18V, R
R
T
50
T
(k )
(k )
100
100
T
=47k , Ta=25˚C)
100
1000
1000
150
T
)
Oscillation frequency (f
FB pin source current (I
Maximum duty cycle (D
FA5511/15
100.08
100.06
100.04
100.02
100.1
99.98
99.96
99.94
99.92
-100
-200
-300
-400
-500
-600
-700
-800
99.9
100
72
71
70
69
68
67
0
10
0
1
1
15
OSC
MAX
FB
10
) vs. FB pin voltage (V
) vs. supply voltage (V
) vs. timing resitor resistance (R
2
Vcc (V)
V
R
FB
20
T
(k )
(V)
3
100
25
4
FB
FA551X
CC
)
)
1000
30
5
5
T
)