adum6400 Analog Devices, Inc., adum6400 Datasheet - Page 15

• Manufacturer Part Number: adum6400
• Description: Quad-channel Isolators With Integrated Dc-to-dc Converter
• Manufacturer: Analog Devices, Inc.

Table 25. ADuM6404 Pin Function Descriptions
Pin No. Mnemonic Description
1
2, 8
3
4
5
6
7
9, 15
10
11
12
13
14
16
TRUTH TABLE
Table 26. Truth Table (Positive Logic)
V
High
Low
High
Low
High
Low
High
Low
1
V
Ix
Ix
Input
and V
Ox
V
GND
V
V
V
V
V
GND
V
V
V
V
V
V
1
refer to the input and output signals of a given channel (A, B, C, or D).
DD1
OA
OB
OC
OD
DDL
SEL
ID
IC
IB
IA
ISO
V
High
High
Low
Low
Low
Low
High
High
1
ISO
SEL
Input
Primary Supply Voltage, 3.0 V to 5.5 V. Pin 1 and Pin 7 must be connected to the same external voltage source.
Ground 1. Ground reference for isolator primary. Pin 2 and Pin 8 are internally connected, and it is recommended that both
pins be connected to a common ground.
Logic Output A.
Logic Output B.
Logic Output C.
Logic Output D.
Data Channel Supply Voltage, 3.0 V to 5.5 V. Pin 1 and Pin 7 must be connected to the same external voltage source.
Ground Reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and it is recommended that both pins be
connected to a common ground.
Output Voltage Selection. When V
Logic Input D.
Logic Input C.
Logic Input B.
Logic Input A.
Secondary Supply Voltage Output for External Loads, 3.3 V (V
V
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DD1
State
V
5.0
5.0
3.3
3.3
5.0
5.0
3.3
3.3
DD1
Input (V)
ADuM6400/ADuM6401/ADuM
Figure 12. ADuM6404 Pin Configuration
GND
GND
V
V
SEL
V
V
V
V
DD1
DDL
OB
OC
OD
OA
1
1
= V
V
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ISO
1
2
3
4
5
6
7
8
ISO
Rev. 0 | Page 15 of 24
State
ADuM6404
(Not to Scale)
, the V
TOP VIEW
ISO
V
5.0
5.0
3.3
3.3
3.3
3.3
5.0
5.0
setpoint is 5.0 V. When V
ISO
16
15
14
13
12
11
10
9
Output (V)
V
GND
V
V
V
V
V
GND
ISO
IA
IB
IC
ID
SEL
ISO
ISO
SEL
Low) or 5.0 V (V
V
High
Low
High
Low
High
Low
High
Low
Ox
Output
6402/ADuM6403/ADuM6404
SEL
= GND
SEL
1
High).
ISO
Notes
Normal operation, data is high
Normal operation, data is low
Normal operation, data is high
Normal operation, data is low
Normal operation, data is high
Normal operation, data is low
Configuration not recommended
Configuration not recommended
, the V
ISO
setpoint is 3.3 V.