S-8425AAAFT-TB-X Datasheet, PDF (36/45 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

BATTERY BACKUP SWITCHING IC
S-8425 Series
3. Switch Unit
3.1 Switch Voltage (V_SW1) Temperature
Characteristics
20
10
Based on VSW1 voltage when Ta is 25^°C
0
−10
− 20
−40 − 20
0 20 40 60 80 100
Ta (°C)
3.3 Input Voltage (V_BAT) vs. V_BAT Switch
Resistance (R_SW) Characteristics
60
50
IOUT = 500 μA
40
30
20
10
0
1
2
3
4
5
VBAT (V)
3.5 V_BAT Switch Leakage Current (I_LEAK)
Temperature Characteristics
30
25
VIN = 6.0 V, IBAT = 0 V
20
15
10
5
0
−40 −20
0 20 40 60
Ta (°C)
80 100
Rev.3.1_01
3.2 CS Output Inhibit Voltage (V_SW2)
Temperature Characteristics
20
Based on VSW2 voltage when Ta is 25°C
10
0
−10
−20
−40 −20
0 20 40 60 80 100
Ta (°C)
3.4 V_BAT Switch Resistance (RSW) Temperature
Characteristics
60
50
VBAT = 3 V, IOUT = 500 μA
40
30
20
10
0 _{−40 −20}
0 20 40
Ta (°C)
60 80 100
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