s-8426a Seiko Instruments Inc., s-8426a Datasheet - Page 19

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

Rev.1.0
1. 3 Reference data: Dependency of output current (I
(1) I
(2) C
For reference, the following pages describe the results of measuring the ringing amounts at the VOUT and VRO
pins using the output current (I
parameters.
(a) VOUT pin
(a) VOUT pin
_00
OUT
(∆V
OUT
Dependency
IN
Dependency
), temperature (Ta)
C
I
OUT
OUT
0.50
0.40
0.30
0.20
0.10
0.00
0.25
0.20
0.15
0.10
0.05
0.00
= 50 mA, V
= 22 µF, V
0
0
Figure 29
10
Figure 31
IN
IN
20
= 6↔10 V, Ta = 25 °C
= 6↔10 V, Ta = 25 °C
C
I
20
OUT
OUT
OUT
), load capacitance (C
(mA)
(µF)
30
40
Seiko Instruments Inc.
40
60
50
OUT
OUT
(b) VRO pin
(b) VRO pin
), input variation width (∆V
), load capacitance (C
BATTERY BACKUP SWITCHING IC
0.25
0.20
0.15
0.10
0.05
0.00
0.50
0.40
0.30
0.20
0.10
0.00
I
C
RO
RO
= 30 mA, V
0
= 22 µF, V
0
10
Figure30
Figure32
IN
20
IN
OUT
IN
= 6↔10 V, Ta = 25 °C
= 6↔10 V, Ta = 25 °C
), and temperature (Ta) as
I
20
RO
C
), input variation width
RO
(mA)
S-8426A Series
(µF)
30
40
Overshoot
Undershoot
Overshoot
Undershoot
40
50
60
19