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S8424A Datasheet(PDF) 17 Page - Seiko Instruments Inc

Part # S8424A
Description  BATTERY BACKUP SWITCHING IC
PDF  46 Pages
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Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

S8424A Datasheet(HTML) 17 Page - Seiko Instruments Inc

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BATTERY BACKUP SWITCHING IC
Rev.3.0_01
S-8424A Series
17
Test Circuit
1.
2.
↓
V
10
μF
VRO or VOUT
VIN
VIN
VSS
VSS
RESET
VIN
VBAT
V
VOUT
V
V
CS
100 k
Ω
VIN
100 k
Ω
PREEND
100 k
Ω
V
VBAT
V
To measure VDET3, apply 6 V to VIN.
3.
4.
VDS
VIN
VIN
VSS
CS
RESET
A
A
VBAT VOUT
PREEND
A
VBAT
VIN
VOUT
VIN
VSS
VBAT
V
V
Measure the value after applying 6 V to VIN.
5.
6.
VOUT
VIN
VSS
CS
F.G.
VBAT
VBAT
Oscilloscope
Oscilloscope
100 k
Ω
VSS
A
VIN
VIN
VBAT
7.
8.
IOUT
VBAT
VOUT
VIN
VSS
VBAT
V
↓
VIN
Leave open and measure the value after applying
6 V to VIN.
VBAT
VIN
VIN
VSS
VBAT
A
A
IBAT
ISS
To measure IBAT2, apply 6 V to VIN and then leave
VIN open and measure IBAT.
Figure 5 Test Circuit



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