s-8425 Seiko Instruments Inc., s-8425 Datasheet - Page 34

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

3. Switch Unit
34
BATTERY BACKUP SWITCHING IC
S-8425 Series
3.1 Switch Voltage (V
3.3 Input Voltage (V
3.5 V
30
25
20
15
10
5
60
50
40
30
20
10
− 10
0
− 20
Characteristics
Resistance (R
Temperature Characteristics
0
20
10
0
BAT
1
− 40
− 40
Switch Leakage Current (I
V
IN
Based on V
− 20
= 6.0 V, I
− 20
2
0
BAT
SW
0
SW1
Ta ( ° C)
Ta ( ° C)
BAT
= 0 V
) Characteristics
voltage when Ta is 25 ° C
20
SW1
V
20
) vs. V
BAT
3
) Temperature
I
OUT
(V)
40
40
= 500 μ A
BAT
60
60
4
Switch
LEAK
80
80
Seiko Instruments Inc.
)
100
100
5
3.2 CS Output Inhibit Voltage (V
3.4 V
60
50
40
30
20
10
−10
−20
0
Temperature Characteristics
Characteristics
20
10
0
BAT
− 40
−40
V
Switch Resistance (R
BAT
− 20
= 3 V, I
−20
Based on V
OUT
0
0
= 500 μ A
Ta ( ° C)
Ta ( ° C)
20
SW2
20
voltage when Ta is 25 ° C
40
40
SW
60
60
SW2
) Temperature
Rev.2.3
)
80
80
100
100
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