s-8426a Seiko Instruments Inc., s-8426a Datasheet - Page 17

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

Rev.1.0
Output voltage
Input voltage
Transient Response
VOUT pin
Figure 21 Power Supply Application:
1. Line Transient Response Against Input Voltage Variation
Output Voltage
Input Voltage
1. 1 Power supply application: 0 to 10 V Square wave
Figure 23 Ringing Waveform of Power Supply
The input voltage variation differs depending on whether the power supply input (0 to 10 V square wave) is applied
or the power supply variation (6 V and 10 V square waves) is applied. This section describes the ringing waveforms
and parameter dependency of each type. The test circuit is shown for reference.
(0.5 V/div)
_00
(5 V/div)
0 V
0 to 10 V Square Wave
Application (VOUT Pin)
C
10 V
OUT
0 V
= 22 µF, I
10 V
t (100 µs/div)
OUT
Overshoot
Undershoot
= 50 mA, Ta = 25 °
Seiko Instruments Inc.
C
P.G.
VRO pin
Fast amplifier
Output Voltage
Input Voltage
Figure 24 Ringing Waveform of Power Supply
(0.5 V/div)
(5 V/div)
BATTERY BACKUP SWITCHING IC
Figure 22 Test Circuit
Application (VRO Pin)
VIN
C
0 V
RO
S-8426A
Series
= 22 µF, I
VSS
10 V
t (100 µs/div)
VOUT
RO
C
= 30 mA, Ta = 25 °C
S-8426A Series
OUT
R
L
Oscillo
scope
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