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Data Sheet ADuM5240/ADuM5241/ADuM5242
Rev. B | Page 9 of 16
Table 12. ADuM5240 Truth Table
V
DD
State DC-to-DC Converter V
ISO
State V
IA
Input V
IB
Input V
OA
Output V
OB
Output
Powered Enabled Powered (Internally) H H H H
Powered Enabled Powered (Internally) L L L L
Powered Enabled Powered (Internally) H L H L
Powered Enabled Powered (Internally) L H L H
Powered Disabled Powered (Externally) H H H H
Powered Disabled Powered (Externally) L L L L
Powered Disabled Powered (Externally) H L H L
Powered Disabled Powered (Externally) L H L H
Powered Disabled Unpowered X X Z Z
Unpowered Disabled Powered (Externally) X X L L
Unpowered Disabled Unpowered X X Z Z
Table 13. ADuM5241 Truth Table
V
DD
State DC-to-DC Converter V
ISO
State V
IA
Input V
IB
Input V
OA
Output V
OB
Output
Powered Enabled Powered (Internally) H H H H
Powered Enabled Powered (Internally) L L L L
Powered Enabled Powered (Internally) H L H L
Powered Enabled Powered (Internally) L H L H
Powered Disabled Powered (Externally) H H H H
Powered Disabled Powered (Externally) L L L L
Powered Disabled Powered (Externally) H L H L
Powered Disabled Powered (Externally) L H L H
Powered Disabled Unpowered X X L Z
Unpowered
Disabled
Powered (Externally)
X
X
Z
L
Unpowered Disabled Unpowered X X Z Z
Table 14. ADuM5242 Truth Table
V
DD
State DC-to-DC Converter V
ISO
State V
IA
Input V
IB
Input V
OA
Output V
OB
Output
Powered Enabled Powered (Internally) H H H H
Powered Enabled Powered (Internally) L L L L
Powered Enabled Powered (Internally) H L H L
Powered
Enabled
Powered (Internally)
L
H
L
H
Powered Disabled Powered (Externally) H H H H
Powered Disabled Powered (Externally) L L L L
Powered Disabled Powered (Externally) H L H L
Powered Disabled Powered (Externally) L H L H
Powered Disabled Unpowered X X L L
Unpowered Disabled Powered (Externally) X X Z Z
Unpowered Disabled Unpowered X X Z Z
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