S-8426AAA-J8T1X Datasheet, PDF (20/37 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

BATTERY BACKUP SWITCHING IC
S-8426A Series
Rev.2.0_02
(3) ΔVIN Dependency
ΔVIN shows the difference between the low voltage fixed to 6 V and the high voltage.
For example, ΔVIN = 2 V means the difference between 6 V and 8 V.
(a) VOUT pin
I_OUT = 50 mA, C_OUT = 22 μF, Ta = 25 °C
0.30
(b) VRO pin
I_RO = 30 mA, C_RO = 22 μF, Ta = 25 °C
0.30
0.25
0.25
0.20
0.20
0.15
0.15
0.10
0.10
0.05
0.00
0 12 3 45
ΔV_IN (V)
Figure 33
0.05
0.00
0
12345
ΔV_IN (V)
Figure34
Overshoot
Undershoot
(4) Temperature Dependency
(a) VOUT pin
V_IN = 6↔10 V, I_OUT = 50 mA, C_OUT = 22 μF
0.30
0.25
0.20
0.15
0.10
0.05
0.00
−50
0
50
100
Ta (°C)
Figure 35
(b) VRO pin
V_IN = 6↔10 V, I_RO = 30 mA, C_RO = 22 μF
0.30
0.25
0.20
0.15
0.10
0.05
0.00
−50
0
50
100
Ta (°C)
Figure 36
Overshoot
Undershoot
20