s-8426a Seiko Instruments Inc., s-8426a Datasheet - Page 23

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

Rev.1.0
Caution 1. Be sure to add a 10 µF or more capacitor to the VOUT and VRO pins.
(3) ∆I
(4) Temperature Dependency
(a) VOUT pin
(a) VOUT pin
∆I
example, ∆I
_00
V
OUT
OUT
IN
2. The above connections and values will not guarantee correct operation. Before setting these
= 6.0 V, I
Dependency
and ∆I
values, perform sufficient evaluation on the application to be actually used.
0.12
0.10
0.08
0.06
0.04
0.02
0.00
C
OUT
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
OUT
RO
OUT
= 10 mA means a fluctuation between 10 µA and 10 mA.
0
= 22 µF, V
show the fluctuation between the low current stabilized at 10 µA and the high current. For
− 50
= 50 mA ↔ 10 µ A, C
10
Figure 45
Figure 47
20
∆I
IN
OUT
0
= 6.0 V, Ta = 25 °C
Ta ( ° C)
30
(mA)
40
50
Seiko Instruments Inc.
OUT
50
= 22 µ F
60
100
(b) VRO pin
(b) VRO pin
V
IN
BATTERY BACKUP SWITCHING IC
= 6.0 V, I
0.12
0.10
0.08
0.06
0.04
0.02
0.00
C
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
RO
− 50
0
RO
= 22 µF, V
= 30 mA ↔ 10 µ A, C
10
Figure 46
Figure 48
20
IN
∆I
0
= 6.0 V, Ta = 25 °C
RO
Ta ( ° C)
30
S-8426A Series
(mA)
40
Overshoot
Undershoot
Overshoot
Undershoot
50
RO
50
= 22 µ F
60
100
23