S-8426AAA-J8T1X Datasheet, PDF (27/37 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

Rev.2.0_02
BATTERY BACKUP SWITCHING IC
S-8426A Series
2. 2 RESET Voltage Detector (−VDET2 = 2.9 V)
(1) Detection voltage (−VDET2) temperature characteristics
Based on RESET (−VDET2) voltage when Ta is 25 °C
20
10
0
10
20
40 25
0
25 50
Ta [C]
75 85
(3) Output current (ISINK) temperature characteristics
VIN = VBAT = 2.0 V, VDS = 0.5 V
10
8
6
4
2
0
40 25
0
25 50
Ta [C]
75 85
(2) Output current (ISINK) characteristics
30
25 ^{Ta = 25 C}
20
15
10
5
0
0
1.0
VIN = 3 V
VIN = 1.7 V
2.0
3.0
4.0
VDS [V]
2. 3 PREEND Voltage Detector (−VDET3 = 2.1 V)
(1) Detection voltage (−VDET3) temperature characteristics
Based on PREEND (−VDET3) voltage when Ta is 25 °C
20
10
0
10
20
40 25
0
25 50
Ta [C]
75 85
(3) Output current (ISINK) temperature characteristics
VIN = VBAT = 2.0 V, VDS = 0.5 V
10
8
6
4
2
0
40 25
0
25 50
Ta [C]
75 85
(2) Output current (ISINK) characteristics
30
Ta = 25 C
25
20
15
10
5
0
0
1.0
VIN = 2 V
VIN = 1.7 V
2.0
3.0
4.0
VDS [V]
27