S-8426AAA-J8T1X Datasheet, PDF (28/37 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

BATTERY BACKUP SWITCHING IC
S-8426A Series
Rev.2.0_02
3. Switch Unit
3. 1 Switch Voltage (VSW1) Temperature Characteristics
Based on VSW1 voltage when Ta is 25 °C
20
3. 2 CS Output Inhibit Voltage (VSW2) Temperature Characteristics
Based on VSW2 voltage when Ta is 25 °C
20
10
10
0
0
10
10
20
40 25
0
25 50
Ta [C]
75 85
20
40 25
0
25 50
Ta [C]
75 85
3. 3 Input Voltage (VBAT) vs. VBAT Switch Resistance (RSW) Characteristics 3. 4 VBAT Switch Resistance (RSW) Temperature Characteristics
60
50
50
30
20
10
0
1
IOUT = 500 μA
2
3
4
5
VBAT [V]
60
50
40
30
20
10
0
40 25
VBAT = 3 V, IOUT = 500 μA
0
25 50
Ta [C]
75 85
3. 5 VBAT Switch Leakage Current (ILEAK) Temperature Characteristics
30
25
20
15
10
5
0
40 25
VIN = 6.0 V, VBAT = 0 V
0
25 50
Ta [C]
75 85
4. Consumption Current
4. 1 VIN vs. VIN Consumption Current (ISS1) Characteristics
16
14
Ta = 85 C
12
Ta = 25 C
10
Ta = 40 C
8
6
4
2
0
0 2 4 6 8 10 12 14 16 18
VIN [V]
4. 2 Consumption Current Temperature
16
VIN = 6.0 V, VBAT = 3.0 V
12
8
4
0
40 25
0
25 50
Ta [C]
75 85
28