9. REFERENCE: EXTERNAL CONNECTION EXAMPLES
32
EPSON
S1F76540M0C Series Technical Manual
(Rev.1.1)
9.10 Connection Example when Changing the Regulator Temperature Coefficient
The temperature coefficient of the regulator is determined depending on that of the internal reference voltage as
described in Section 5.3.
When setting the other temperature coefficient, use a thermistor resistor, etc. as shown in Figure 9.15.
Figure 9.15 Connection Example when Changing the Regulator Temperature Coefficient
Figure 9.15 Setting conditions
Internal clock
: ON (Low output mode)
Booster
: ON
Regulator
: ON
Thermistor
resistor
: RT
Power-off method
Set the POFF1X pin to level LOW (VI); all circuits will be turned off.
Regulator temperature coefficient
For information about the basic regulator setting method and notes, see Section 5.4.
The temperature characteristics of the thermistor resistor RT indicate the nonlinearity. When
compensating the linear characteristics, insert the RP shown in Figure 9.15.
Other setting conditions
(1) When using the high output mode
Connect the FC pin to VI.
R1 R2
V
DD
VO
1
VRI
V
REG
RV
V
DD
FC
TC1
TC2
C2P
C2N
C3N
C1N
C1P
VI
POFF1X
POFF2X
2
3
4
5
6
7
8
10
9
11
12
13
14
15
16
1
C2
+
C3
+
C1
+
CI
+
CREG
+
CO
+
VI
V
REG
RP
RT
