Data Sheet ADuM5230
Rev. C | Page 7 of 15
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ND
1
1
V
DD1
2
V
ADJ
3
ND
1
4
V
OA
16
V
ISO
15
GND
ISO
14
DNC
13
V
IA
5
DNC
12
V
IB
6
GND
B
11
V
DD1
7
V
DDB
10
ND
1
8
V
OB
9
DNC = DO NOT CONNECT
ADuM5230
TOP VIEW
(Not to Scale)
07080-002
Figure 3. Pin Configuration
Table 8. Pin Function Descriptions
Pin No. Mnemonic Description
1 GND
1
Ground Reference for Input Logic Signals.
2 V
DD1
Input Supply Voltage, 4.5 V to 5.5 V.
3 V
ADJ
Adjusts Internal DC-to-DC Converter Duty Cycle (Normally Left Unconnected).
4 GND
1
Ground Reference for Input Logic Signals.
5 V
IA
Logic Input A.
6 V
IB
Logic Input B.
7 V
DD1
Input Supply Voltage, 4.5 V to 5.5 V.
8 GND
1
Ground Reference for Input Logic Signals.
9 V
OB
Output B Signal.
10 V
DDB
Output B Supply Voltage, 12 V to 18 V.
11 GND
B
Ground Reference for Output B Signal.
12 DNC Do Not Connect.
13 DNC Do Not Connect.
14 GND
ISO
Ground Reference for Output A Signal and Isolated Output Supply Voltage.
15 V
ISO
Isolated Output Supply Voltage.
16 V
OA
Output A Signal.
For specific layout guidelines, refer to the AN-0971 Application Note, Recommendations for Control of Radiated Emissions with isoPower
Devices.
Table 9. Truth Table (Positive Logic)
V
IA
Input
1
V
IB
Input
1
V
DD1
State
2
V
ISO
State
2
V
DDB
State
1, 2
V
OA
Output V
OB
Output Notes
High High Powered Powered Powered High High
High Low Powered Powered Powered High Low
Low High Powered Powered Powered Low High
Low Low Powered Powered Powered Low Low
X X UVLO Unpowered X Low Low
Output returns to input state within
1 μs of V
DD1
power restoration.
X X Powered UVLO Unpowered Low Low
Output returns to input state within
1 μs of V
ISO
and V
DDB
power restoration.
X High Powered UVLO Powered Low High
Output returns to input state within
1 μs of V
ISO
power restoration.
X Low Powered UVLO Powered Low Low
Output returns to input state within
1 μs of V
ISO
power restoration.
High X Powered Powered UVLO High Low
V
OB
output returns to input state within
1 μs of V
DDB
power restoration.
Low X Powered Powered UVLO Low Low
V
OB
output returns to input state within
1 μs of V
DDB
power restoration.
1
X means don’t care.
2
UVLO represents either a voltage below the UVLO threshold for that supply or absence of power.