Epson Power Supply S1F70000 - Manual (Page 94)

S1F76640 Series
S1F70000 Series
EPSON 2–51
Technical Manual
S1F76640
Series
1000
100
10
1
10 100 1000 10000
30
28
26
24
22
20
18
16
14
12
10
-40 -20 0 20 40 60 80 100
fosc[kHz]
Ta[˚C]
fosc[kH
Z
]
Rosc[k
Ω
]
Ta=25˚C
V DD =5V
V DD =3V
V DD =2V
V DD =2V V DD =3V
V DD =5V
200
150
100
50
0
20
18
16
14
12
10
8
6
4
2
0
0 1 2 3 4 5 6 0 10 20 30
I OPR1
[
µ
A
]
V
O
[V]
V DD [V] I O [mA]
f OSC =10kHz
f OSC =20kHz
f OSC =40kHz
Ta=25˚C
C1=C2=2.2
µ
F
C3=10
µ
F
Ta=25˚C
V
DD =5V
C1 to C4=10
µ
F
3 times step-up
4 times step-up
2 times step-up
CHARACTERISTICS GRAPH
(1) Oscillation frequency vs. External resistance
for oscillation
(2) Oscillation frequency vs. Temperature
(3) Step-up circuit current consumption vs. Input
voltage
(4) Output voltage (V O ) vs. Output current 1