S-8426AAA-J8T1X Datasheet, PDF (7/37 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

Rev.2.0_02
BATTERY BACKUP SWITCHING IC
S-8426A Series
Table 5 (2 / 2)
Item
Switch voltage
CS output inhibit voltage
VBAT switch
leakage current
VBAT switch resistance
Switch voltage
temperature coefficient
CS output inhibit voltage
temperature coefficient
Current consumption
Backup power supply
input voltage
Symbol
VSW1
VSW2
Conditions
VBAT = 2.8 V, VIN voltage detection
VBAT = 3.0 V, VOUT voltage detection
Min. Typ. Max. Unit
+VDET4^*1 +VDET4^*1 +VDET4^*1
× 0.75 × 0.77 × 0.79
V
VOUT
VOUT
VOUT
× 0.93 × 0.95 × 0.97
V
Test
Circuit
4
5
ILEAK
VIN = 6 V, VBAT = 0 V
−
−
0.1 μA
6
RSW
VIN = Open,
VBAT = 3.0 V, IOUT = 10 to 500 μA
−
ΔVSW1
ΔTa • VSW1
Ta = −40 to +85°C
−
ΔVSW 2
ΔTa • VSW2
Ta = −40 to +85°C
−
ISS1
VIN = 6 V, VBAT = 3.0 V, no load
−
ISS2
VIN = 16 V, VBAT = 3.0 V, no load
−
IBAT1
VIN = 6 V, VBAT = 3.0 V, no load
−
IBAT2
VIN = Open,
Ta = 25 °C −
VBAT = 3.0 V, no load Ta = 85 °C
−
30
±100
±100
6
7
0.5
1.5
−
60
Ω
7
−
ppm/
°C
4
−
ppm/
°C
5
15 μA
8
20 μA
8
3.5 μA
8
4.5 μA
8
5.0 μA
8
VBAT
−
1.7
−
4.0 V
7
*1. +VDET4 can be calculated by −VDET1 with the following equation.
+VDET4 = (+VDET1) + 15 × {(−VDET1) − 0.8} ÷ 372
Remark The number in the Test Circuit column corresponds to the circuit number in the “ Test Circuits” section.
7