Datasheet ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 (Analog Devices) - 2

FabricanteAnalog Devices
DescripciónPWM Controller and Transformer Driver with Quad-Channel Isolators
Páginas / Página36 / 2 — ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474. Data Sheet. TABLE OF …
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ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 5/14—Rev. A to Rev. B

ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 Data Sheet TABLE OF CONTENTS REVISION HISTORY 5/14—Rev A to Rev B

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