ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474
TABLE OF CONTENTS
Data Sheet
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description......................................................................... 1
Functional Block Diagrams............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Typical Performance Characteristics ........................................... 19
Terminology.................................................................................... 24
Applications Information.............................................................. 25
Application Schematics ............................................................. 25
Transformer Design ................................................................... 26
Transformer Turns Ratio........................................................... 26
Transformer ET Constant ......................................................... 27
Transformer Primary Inductance and Resistance ................. 27
Transformer Isolation Voltage.................................................. 27
Switching Frequency.................................................................. 27
Transient Response .................................................................... 27
Component Selection ................................................................ 27
Printed Circuit Board (PCB) Layout ....................................... 28
Thermal Analysis ....................................................................... 28
Propagation Delay-Related Parameters................................... 28
DC Correctness and Magnetic Field Immunity..................... 29
Power Consumption .................................................................. 30
Power Considerations................................................................ 30
Insulation Lifetime..................................................................... 31
Outline Dimensions....................................................................... 32
Ordering Guide .......................................................................... 33
Automotive Products................................................................. 33
Electrical Characteristics—5 V Primary Input Supply/
5 V Secondary Isolated Supply ................................................... 3
Electrical Characteristics—3.3 V Primary Input Supply/
3.3 V Secondary Isolated Supply ................................................ 5
Electrical Characteristics—5 V Primary Input Supply/
3.3 V Secondary Isolated Supply ................................................ 7
Electrical Characteristics—5 V Primary Input Supply/
15 V Secondary Isolated Supply ................................................. 9
Package Characteristics ............................................................. 11
Regulatory Approvals................................................................. 11
Insulation and Safety-Related Specifications.......................... 11
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
Insulation Characteristics.......................................................... 12
Recommended Operating Conditions .................................... 12
Absolute Maximum Ratings.......................................................... 13
ESD Caution................................................................................ 13
Pin Configurations and Function Descriptions ......................... 14
REVISION HISTORY
5/14—Rev. A to Rev. B
Change to Table 4 ............................................................................. 9
Changes to Figure 6 and Table 14................................................. 16
Changes to Figure 7 and Table 15................................................. 17
Changes to Figure 8, Table 16, and Table 17............................... 18
Change to Figure 9 ......................................................................... 19
Changes to Terminology Section ................................................. 24
Changes to Applications Information Section, Application
Schematics Section, Figure 38, Figure 39, and Figure 40.......... 25
Changes to Transformer Turns Ratio Section ............................ 26
Changes to Transformer ET Constant Section,
Transient Response Section, and Table 19 .................................. 27
Changes to Figure 41...................................................................... 28
Changes to Power Consumption Section and Figure 45........... 30
Changes to Insulation Lifetime Section and Figure 48 ............. 31
Changes to Ordering Guide.......................................................... 33
Added Automotive Products Section .......................................... 33
7/13—Rev. 0 to Rev. A
Changed VDD1 Pin to NC Pin ....................................... Throughout
Changes to Features Section, Applications Section,
General Description Section, and Figure 1................................... 1
Created Hyperlink for Safety and Regulatory Approvals
Entry in Features Section................................................................. 1
Changes to Table 1............................................................................ 3
Changes to Table 2............................................................................ 5
Changes to Table 3............................................................................ 7
Changes to Table 4............................................................................ 9
Changes to Regulatory Approvals Section.................................. 11
Changes to Figure 3 and Table 9................................................... 12
Changes to Figure 4 and Table 12................................................. 14
Changes to Figure 5 and Table 13................................................. 15
10/10—Revision 0: Initial Version
Rev. B | Page 2 of 36
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