S-8426AAA-J8T1X Datasheet, PDF (18/37 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

BATTERY BACKUP SWITCHING IC
S-8426A Series
Rev.2.0_02
1. 2 Power supply variation: 6 V and 10 V square waves
Input
voltage
6V
10 V
Output
voltage
Overshoot
Undershoot
Fast amplifier
P.G.
VIN
VOUT
S-8426A
Seriers
VSS
C_OUT
Oscillo
scope
R_L
Figure 25 Power Supply Variation:
6 V and 10 V Square Waves
VOUT pin
Input Voltage
(4 V/div)
10 V
6V
Figure 26 Test Circuit
C_OUT = 22 μF, I_OUT = 50 mA, Ta = 25 °C
10 V
6V
Output Voltage
(50 mV/div)
t (100 μs/div)
t (100 μs/div)
Figure 27 Ringing Waveform of Power Supply Variation (VOUT Pin)
VRO pin
Input Voltage
(4 V/div)
10 V
6V
C_RO = 22 μF, I_RO = 30 mA, Ta = 25 °C
10 V
6V
Output Voltage
(50 mV/div)
t (100 μs/div)
t (100 μs/div)
Figure 28 Ringing Waveform of Power Supply Variation (VRO Pin)
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