S-8425AAAFT-TB-X Datasheet, PDF (16/45 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

BATTERY BACKUP SWITCHING IC
S-8425 Series
Power supply variation: 6 V↔10 V square waves
10 V
Input
voltage ^{6 V}
Output
voltage
Overshoot
Undershoot
Figure 15 Power Supply Variation:
6 V↔10 V Square Waves
Rev.3.1_01
Fast amplifier
P.G.
VIN
VOUT
S-8425 Series
VSS
C_OUT
Oscillo-
scope
R_L
Figure 16 Test Circuit
Power Supply Variation
VOUT pin
Input voltage
(4 V/div)
10V
6V
Output voltage
(50 mV/div)
C_OUT = 22 μF, I_OUT = 50 mA, Ta = 25°C
10V
6V
t (100 μs/div)
Figure 17 Ringing Waveform of Power Supply Variation (VOUT Pin)
VRO pin
Input voltage
(4 V/div)
10V
6V
C_RO = 22 μF, I_RO = 30 mA, Ta = 25°C
10V
6V
Output voltage
(50 mV/div)
t (100 μs/div)
Figure 18 Ringing Waveform of Power Supply Variation (VRO Pin)
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