s-8426a Seiko Instruments Inc., s-8426a Datasheet - Page 6

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

6
BATTERY BACKUP SWITCHING IC
S-8426A Series
Electrical Characteristics
1. S-8426AAA
Sink current
Output voltage 1
Dropout voltage 1
Load stability 1
Input stability 1
Output voltage temperature
coefficient 1
Output voltage 2
Dropout voltage 2
Load stability 2
Input stability 2
Output voltage temperature
coefficient 2
Primary power input voltage V
CS detection voltage
CS release voltage
Operating voltage
Detection voltage
temperature coefficient
Leakage current
RESET detection voltage
RESET release voltage
PREEND detection voltage
PREEND release voltage
Item
V
V
∆V
∆V
V
V
∆V
∆V
−V
+V
−V
+V
−V
+V
V
I
I
∆
∆
∆
∆
∆
SINK
LEAK
RO
drop1
OUT
drop2
IN
opr
Ta
Ta
Ta
Ta
Ta
∆
∆
∆
Symbol
∆
∆
DET1
DET1
DET2
DET2
DET3
DET3
RO1
RO2
OUT1
OUT2
−
−
V
V
−
•
•
•
•
•
RO
OUT
V
V
V
−
−
−
V
V
DET
DET
V
DET
V
V
RO
OUT
DET
DET
DET
1
3
2
1
2
3
V
V
V
V
V
V
V
V
V
V
Ta = −40 to +85 °C
V
Ta = −40 to +85 °C
Ta = −40 to +85 °C
V
V
Ta = −40 to +85 °C
Ta = −40 to +85 °C
V
V
Seiko Instruments Inc.
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
DS
OUT
BAT
DS
IN
= 6 V, I
= 6 V, I
= 6 V, I
= 6 to 16 V, I
= 6 V, I
= 6 V, I
= 6 V, I
= 6 to 16 V, I
voltage detection
or V
= V
= 16 V, V
= 0.5 V,
Table 5 (1 / 2)
voltage detection
voltage detection
BAT
BAT
Conditions
RO
= 2.0 V
RO
RO
OUT
OUT
OUT
IN
= 30 mA
= 30 mA
= 0.1 to 40 mA
= 50 mA
= 50 mA
= 0.1 to 60 mA
−
−
−
−
= 16 V
RO
OUT
= 30 mA
CS
= 50 mA
RESET
PREEND
× 0.93
+V
(Unless otherwise specified: Ta = 25 °C)
4.900
4.900
4.410
2.842
2.994
2.058
2.154
Min.
1.50
1.50
1.50
1.7
−
−
−
−
−
−
−
−
−
−
−
−
−
OUT
× 0.95
+V
5.000
5.000
4.500
2.900
3.068
2.100
2.207
±100
±100
±100
±100
±100
2.30
2.30
2.30
Typ.
356
401
50
50
10
5
−
−
−
OUT
× 0.97
+V
5.100
5.100
4.590
2.958
3.142
2.142
2.260
Max.
474
100
540
100
0.1
20
30
16
16
−
−
−
−
−
−
−
−
OUT
Rev.1.0
ppm/
ppm/
ppm/
ppm/
ppm/
Unit
mV
mV
mV
mV
mV
mV
mA
mA
mA
µA
°C
°C
°C
°C
°C
V
V
V
V
V
V
V
V
V
V
Circuit
Test
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
3
3
3
3
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