S-8424AAAFT-TB-X Datasheet, PDF (25/46 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

Rev.3.0_01
BATTERY BACKUP SWITCHING IC
S-8424A Series
Reference data: Dependency of output current (I^OUT), load capacitance (C^OUT), input variation width (ΔV^IN),
temperature (Ta)
For reference, the following pages describe the results of measuring the ringing amounts at the VOUT and
VRO pins using the output current (I_OUT), load capacitance (C_OUT), input variation width (ΔV_IN), and
temperature (Ta) as parameters.
1.1 I_OUT Dependency
(1) VOUT pin
(2) VRO pin
C_OUT = 22 μF, V_IN = 6 V and 10 V, Ta = 25°C
0.25
C_RO = 22 μF, V_{IN =} 6 V and 10 V, Ta = 25°C
0.25
0.20
0.20
0.15
0.15
0.10
0.05
0.00
0
20
40
60
I_OUT (mA)
1.2 C_OUT Dependency
(1) VOUT pin
I_OUT = 50 mA, V_IN = 6 V and 10 V, Ta = 25°C
0.50
0.40
0.30
0.10
0.05
0.00
0
20
40
60
I_RO (mA)
(2) VRO pin
I_RO = 30 mA, V_IN = 6 V and 10 V, Ta = 25°C
0.50
0.40
0.30
0.20
0.10
0.00
0 10 20 30 40 50
C_OUT (μF)
0.20
0.10
0.00
0
10 20 30 40 50
C_RO (μF)
Overshoot
Undershoot
25