S-8424AAAFT-TB-X Datasheet, PDF (37/46 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

Rev.3.0_01
BATTERY BACKUP SWITCHING IC
S-8424A Series
3. Switch Unit
3.1 Switch Voltage (V_SW1) Temperature
Characteristics
20
10
Based on VSW1 voltage when Ta is 25^°C
0
3.2 CS Output Inhibit Voltage (V_SW2) Temperature
Characteristics
20
Based on VSW2 voltage when Ta is 25°C
10
0
−10
−10
− 20
−40 − 20
0 20 40 60 80 100
Ta (°C)
3.3 Input Voltage (V_BAT) vs. VBAT Switch
Resistance(R_SW) Characteristics
60
−20 _{−40 −20 0}
20 40 60 80 100
Ta (°C)
3.4 VBAT Switch Resistance (RSW) Temperature
Characteristics
60
50
IOUT = 500 μA
40
50
VBAT = 3 V, IOUT = 500 μA
40
30
30
20
20
10
10
0
1
2
3
4
5
VBAT (V)
3.5 VBAT Switch Leakage Current (I_LEAK) Temperature
Characteristics
30
0 _{−40 −20}
0 20 40
Ta (°C)
60 80 100
25
V_IN = 6.0 V, V_BAT = 0 V
20
15
10
5
0
−40 −20 0
20 40 60 80 100
Ta (°C)
37