s-8424a Seiko Instruments Inc., s-8424a Datasheet - Page 32

• Manufacturer Part Number: s-8424a
• Description: Battery Backup Switching Ic
• Manufacturer: Seiko Instruments Inc.

32
BATTERY BACKUP SWITCHING IC
S-8424A Series
Characteristics
1. Voltage Regulator Unit (V
1.1 Input Voltage (V
1.2 Input Voltage (V
(1) Ta = 85 ° C
(3) Ta = − 40 ° C
(1) Ta = 85 ° C
(3) Ta = − 40 ° C
I
I
I
I
RO
RO
OUT
OUT
3.2
2.8
2.4
2.0
3.2
2.8
2.4
2.0
3.2
2.8
2.4
2.0
3.2
2.8
2.4
2.0
= 10 mA, 30 mA, 50 mA, 70 mA, 90 mA
= 10 mA, 30 mA, 50 mA, 70 mA, 90 mA
= 10 mA, 30 mA, 50 mA, 70 mA, 90 mA
= 10 mA, 30 mA, 50 mA, 70 mA, 90 mA
2.0
2.0
2.0
2.0
I
I
RO
I
OUT
RO
= 10 mA
I
= 10 mA
OUT
= 10 mA
= 10 mA
IN
IN
3.0
) vs. Output Voltage (V
3.0
3.0
) vs. Output Voltage (V
3.0
V
V
V
V
IN
IN
IN
IN
RO
(V)
(V)
(V)
(V)
I
OUT
= V
I
RO
I
= 90 mA
OUT
4.0
4.0
4.0
= 90 mA
4.0
OUT
= 90 mA
I
RO
= 3.0 V)
= 90 mA
Seiko Instruments Inc.
RO
OUT
5.0
5.0
5.0
5.0
) Characteristics (REG1)
) Characteristics (REG2)
(2) Ta = 25 ° C
(2) Ta = 25 ° C
I
I
OUT
RO
= 10 mA, 30 mA, 50 mA, 70 mA, 90 mA
3.2
2.8
2.4
2.0
3.2
2.8
2.4
2.0
= 10 mA, 30 mA, 50 mA, 70 mA, 90 mA
2.0
2.0
I
I
RO
OUT
= 10 mA
= 10 mA
3.0
3.0
V
V
IN
IN
(V)
(V)
I
OUT
4.0
4.0
I
= 90 mA
RO
= 90 mA
Rev.2.2
5.0
5.0
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