S1F78100Y2A Epson Electronics America, Inc., S1F78100Y2A Datasheet - Page 79

• Manufacturer Part Number: S1F78100Y2A
• Description: High Precision Voltage Regulators
• Manufacturer: Epson Electronics America, Inc.

S1F76540 Series
Wiring Example When Changing the
Regulator Temperature Coefficient
The temperature coefficient of the regulator depends on
the temperature coefficient of the internal reference
2–36
Output voltages
• When diodes are used for voltage boosting, the characteristics of diodes directly affect on the voltage boosting
Notes
1 Input and output current conditions
2 Input and output voltage conditions
Application in other setup conditions
When used in the High Output mode, connect the FC pin to the V
characteristics. The forward voltage drop (V
of Figure 2.14 uses three diodes, the drop of “V
voltage is expressed by equation (5).
To increase the |V
To satisfy the input and output current ratings, take care to limit the input current below the ratings.
During forward voltage conversion, the input voltage ratings are the same as two-time negative voltage boost-
ing (see Table 2.3).
| V
Figure 2.16 Wiring example when changing the regulator temperature coefficient
O
' | = 3
V
REG
V
V
| V
DD
I
O
I
'| value, use the diodes having a smaller V
| – (3
V
F
R1
)
C
+
+
I
C
C
R2
+
O
REG
F
) of diodes can reduce the booster output voltage. As the example
EPSON
F
” voltage multiplied by three occurs. The booster output
RP
RT
voltage. To set another temperature coefficient, use a
thermistor resistor or others as shown in Figure 2.16.
F
1
2
3
4
5
6
7
8
.
I
V
V
V
RV
V
FC
TC1
TC2
pin.
O
RI
REG
DD
P
P
C2N
C3N
C1N
C2P
C1P
OFF1
OFF2
• • • • Equation (6)
V
I
16
15
14
13
12
11
10
9
C1
+
C2
+
C3
+
Technical Manual
S1F70000 Series