s-8426a Seiko Instruments Inc., s-8426a Datasheet - Page 7

• Manufacturer Part Number: s-8426a
• Description: Battery Backup Switching Ic
• Manufacturer: Seiko Instruments Inc.

*1. +V
Remark The number in the Test Circuit column corresponds to the circuit number in the “ Test Circuits” section.
Rev.1.0
+V
Switch voltage
CS output inhibit voltage
V
leakage current
V
Switch voltage
temperature coefficient
CS output inhibit voltage
temperature coefficient
Current consumption
Backup power supply
input voltage
BAT
BAT
DET4
DET4
switch
switch resistance
_00
can be calculated by −V
= (+V
Item
DET1
) + 15 × {(−V
DET1
V
V
I
R
I
I
I
I
V
DET1
LEAK
∆
∆
SS1
SS2
BAT1
BAT2
SW1
SW2
BAT
SW
Ta
Ta
) − 0.8} ÷ 372
Symbol
∆
∆
V
V
•
•
with the following equation.
SW
SW
V
V
SW
1
SW
2
1
2
V
V
V
V
V
Ta = −40 to +85°C
Ta = −40 to +85°C
V
V
V
V
V
Seiko Instruments Inc.
BAT
BAT
IN
IN
BAT
IN
IN
IN
IN
BAT
= 6 V, V
= Open,
= 6 V, V
= Open,
= 16 V, V
= 6 V, V
= 2.8 V, V
= 3.0 V, V
= 3.0 V, I
= 3.0 V, no load
Table 5 (2 / 2)
Conditions
BAT
BAT
BAT
BAT
OUT
IN
OUT
= 0 V
= 3.0 V, no load
= 3.0 V, no load
voltage detection
= 3.0 V, no load
−
voltage detection
= 10 to 500 µA
Ta = 25 °C
Ta = 85 °C
BATTERY BACKUP SWITCHING IC
+V
× 0.75
× 0.93
V
Min.
1.7
DET4
OUT
−
−
−
−
−
−
−
−
−
*1
+V
× 0.77
× 0.95
±100
±100
V
Typ.
0.5
1.5
DET4
30
OUT
−
6
7
−
−
*1
+V
× 0.79
× 0.97
S-8426A Series
Max.
V
0.1
3.5
4.5
5.0
4.0
DET4
60
15
20
OUT
−
−
*1
ppm/
ppm/
Unit
µA
µA
µA
µA
µA
µA
°C
°C
Ω
V
V
V
Circuit
Test
4
5
6
7
4
5
8
8
8
8
8
7
7