FA7764 Datasheet, PDF (9/18 Pages) Fuji Electric – FUJI Power Supply Control IC

7. Characteristic curves
FA7764
450
400
350
300
250
200
150
100
50
0
0
Timing resistor vs. Oscillation frequency
20 40 60 80 100 120 140 160
Timing resistor RT [kΩ]
Oscillation frequency vs.ambient temperature
130
RT=39kΩ
125
120
115
110
-40 -20 0 20 40 60 80 100 120 140 160
Ambient temperature Ta[℃]
Oscillation frequency vs. Supply voltage VCC
135
125
115
105
0
10
20
30
40
50
Supply voltage Vcc[V]
10
9
8
7
6
5
4
3
2
1
0
-40
Under voltage lockout vs.Ambient temperature
ON threshold voltage
OFF threshold voltage
-20 0 20 40 60 80 100 120 140 160
Ambient temperature Ta［℃］
Soft start time vs.Ambient temperature
10
9
8
7
6
5
4
3
2
1
0
-40 -20
0 20 40 60 80 100 120 140 160
Ambient temperature Ta［℃］
Delay time of timer latch vs.Ambient temperature
100
VCC=10V
90
80
70
60
-40 -20
0 20 40 60 80 100 120 140 160
Ambient temperature Ta［℃］
Fuji Electric Systems Co., Ltd.
AN-059E Rev.1.0
9
June.2010
http://www.fujielectric.co.jp/fdt/scd/