S-8425AAAFT-TB-X Datasheet, PDF (18/45 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

BATTERY BACKUP SWITCHING IC
S-8425 Series
Rev.3.1_01
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
C_OUT = 22 μF, V_IN = 6 V↔10 V, Ta = 25°C
0.25
(2) VRO pin
C_RO = 22 μF, V_IN = 6 V↔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
IOUT (mA)
(3) VCH pin
C_CH = 10 μF, V_IN = 6 V↔10 V, Ta = 25°C
0.25
0.20
0.15
0.10
0.05
0.00
0
20
40
60
IRO (mA)
0.10
0.05
0.00
0
20
40
60
I_ICOHU(_Tm_(mA)_A)
Overshoot
Undershoot
18