Epson S1F76610 series Technical Manual page 15

Cmos dc/dc converter (voltage doubler / tripler) & voltage regulator
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S1F76610 Series
Simultaneous Voltage Conversion
Combining a standard voltage tripler circuit with one
for positive voltage conversion generates both –15 and
8.2V outputs from a single input, however, it also raises
the output impedance.
A voltage doubler generates –10 and 3.8V outputs.
V
= 0 V
DD
10 µF
D1
+
10 µF
D2
10 µF
+
10 µF
5 V
D3
10 µF
+
V
= 8.2 V
O2
V
= –5 V
I
Potential levels
V
= 8.2V
O2
V
= 0 V
DD
V
= –5 V
I
V
= –15 V
O1
2–14
1
14
2
13
R
OSC
3
12
1 MΩ
4
11
5
10
6
9
V
O1
7
8
10 µF
+
Using an External Gradient
The S1F7661C0B0/M0B0 offers three built-in tem-
perature gradients— –0.1, –0.4 and –0.6%/°C.
To set the gradient externally, place a thermistor, R
series with the variable resistor, R
output voltage.
1
2
3
4
5
6
= –15 V
7
EPSON
T
, used to adjust the
RV
14
V
DD
13
R1
R
RV
+
12
10 µF
11
R
R
T
P
10
9
V
REG
8
S1F70000 Series
Technical Manual
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