s-8425 Seiko Instruments Inc., s-8425 Datasheet - Page 7

• Manufacturer Part Number: s-8425
• Description: Battery Backup Switching Ic
• Manufacturer: Seiko Instruments Inc.

1.
3.
5.
7.
Leave open and measure the value after applying 6 V to VIN.
9.
Rev.2.3
F.G
Test Circuits
V
V
IN
IN
.
VIN
VSS
_00
VIN
VSS
VIN
VSS
VBAT VOUT
V
VOUT
BAT
VSS
VIN
RESET
VBAT
VBAT
VIN
VRO, VOUT
VOUT
RESET
V
CS
BAT
or VCH
CS
VSS
VOUT
100 kΩ
100 kΩ
Oscilloscope
A
A
↓
Oscilloscope
Oscilloscope
I
OUT
↓
V
DS
Seiko Instruments Inc.
V
V
Figure 4 Test Circuits
2.
4.
6.
8.
To measure I
and measure I
V
V
V
IN
V
IN
V
Measure the value after applying 6 V to VIN.
IN
I
V
SS
IN
V
BAT2
BAT
VIN
VSS
BATTERY BACKUP SWITCHING IC
BAT
A
.
VBAT
, apply 6 V to VIN and then leave VIN open
V
BAT
A
VOUT
VBAT
VIN
A
RESET
I
100 kΩ
BAT
CS
VSS
VIN
VBAT
VIN
VBAT
VOUT
V
VSS
VSS
S-8425 Series
V
100 kΩ
V
7