Epson RX8130CE - Examples of External Connection; Examples of Power Supply Connection

RX8130CE Jump to Top / Bottom
ETM50E-07 Seiko Epson Corporation 8
4. Examples of external connection
4.1. Examples of power supply connection
(1) Case of different I/F voltage
and charge voltage
V
DD
V
BAT
V
IO
1.8 V
3.0 V
R
0.1F
Secondary
battery
EDLC
or
0.1F
1.0F
V
OUT
0.1F
Figure 3 Circuit EX1
(2) Same I/F voltage and charge voltage
(CHGEN=1, INIEN=1)
V
DD
V
BAT
V
IO
3.0 V
3.0 V
R
0.1F
Secondary
battery
EDLC
or
1.0F
V
OUT
0.1F
Figure 4 Circuit EX2
(3) Primary battery as backup
(CHGEN=0)
V
DD
V
BAT
V
IO
3.0 V
1 k Max.
0.1F
Primary
battery
1.0F
V
OUT
0.1F
Figure 5 Circuit EX3
(4) Case of V
DD
supply only.
V
DD
V
BAT
V
IO
3.0 V
0.1F
0.1F
1.0F
V
OUT
Figure 6 Circuit EX4