Low Emission, Isolated DC-to-DC Converters Data Sheet ADuM5020/ADuM5028 FEATURES FUNCTIONAL BLOCK DIAGRAMS isoPower integrated, isolated dc-to-dc converter 1 16 NIC NIC ADuM5020 100 mA output current for ADuM5020 2 15 GND GND 1 ISO 60 mA output current for ADuM5028 PDIS 3 PCS 14 V SEL Meets CISPR22 Class B emissions limits at full load on a GND 4 13 GND 1 ISO 2-layer PCB V OSC 12 5 RECT REG V 16-lead SOIC W package with 7.8 mm minimum creepage DDP ISO 8-lead SOIC IC package with 8.3 mm minimum creepage GND 11 6 GND 1 ISO High temperature operation: 125C maximum NIC 7 10 NIC Safety and regulatory approvals GND 8 9 GND 1 ISO UL recognition (pending) NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING. 3000 V rms for 1 minute per UL 1577 Figure 1. ADuM5020 Functional Block Diagram CSA Component Acceptance Notice 5A (pending) VDE certificate of conformity (pending) VDE V 0884-10 V = 565 V peak IORM ADuM5028 CQC certification per GB4943.1-2011 (pending) PDIS 1 PCS 8 V SEL GND 2 7 GND APPLICATIONS 1 ISO OSC 6 V 3 RECT REG V DDP ISO RS-485/RS-422/CAN transceiver power GND 5 Power supply start-up bias and gate drives 4 GND 1 ISO Isolated sensor interfaces Figure 2. ADuM5028 Functional Block Diagram Industrial PLCs GENERAL DESCRIPTION 1 The ADuM5020 and ADuM5028 are isoPower, integrated, The ADuM5020 and ADuM5028 isolated dc-to-dc converters isolated dc-to-dc converters. Based on the Analog Devices, Inc., provide two different package variants: the ADuM5020 in a iCoupler technology, these dc-to-dc converters provide wide body, 16-lead SOIC W package, and the ADuM5028 in regulated, isolated power that is below CISPR22 Class B limits at the space saving, 8-lead, wide body SOIC IC. For 5 V input full load on a 2-layer printed circuit board (PCB) with ferrites. operations, use the ADuM5020-5BRWZ and the ADuM5028- Common voltage combinations and the associated current 5BRIZ. For 3.3 V input to 3.3 V output operations, use the output levels are shown in Table 1 through Table 6. ADuM5020-3BRWZ and the ADuM5028-3RIZ. See the Pin Configuration and Function Descriptions section and the The ADuM5020 and ADuM5028 eliminate the need to design Ordering Guide for more information. and build isolated dc-to-dc converters in applications up to 500 mW. The iCoupler chip scale transformer technology is used for the magnetic components of the dc-to-dc converter. The result is a small form factor, isolated solution. 1 Protected by U.S. Patents 5,952,849 6,873,065 6,903,578 and 7,075,329. Other patents are pending. Rev. A Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 2018 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 1 652 0-1 02 16520-001ADuM5020/ADuM5028 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Recommended Operating Conditions .......................................9 Applications ....................................................................................... 1 Absolute Maximum Ratings ......................................................... 10 Functional Block Diagrams ............................................................. 1 ESD Caution................................................................................ 10 General Description ......................................................................... 1 Pin Configuration and Function Descriptions ........................... 11 Revision History ............................................................................... 2 Typical Performance Characteristics ........................................... 13 Specifications ..................................................................................... 3 Theory of Operation ...................................................................... 16 Electrical Characteristics5 V Primary Input Supply/5 V Applications Information .............................................................. 17 Secondary Isolated Supply .......................................................... 3 PCB Layout ................................................................................. 17 Electrical Characteristics5 V Primary Input Supply/3.3 V Thermal Analysis ....................................................................... 18 Secondary Isolated Supply .......................................................... 4 EMI Considerations ................................................................... 18 Electrical Characteristics3.3 V Primary Input Supply/3.3 V Insulation Lifetime ..................................................................... 18 Secondary Isolated Supply .......................................................... 5 Outline Dimensions ....................................................................... 20 Regulatory Approvals ................................................................... 6 Ordering Guide .......................................................................... 21 Insulation and Safety Related Specifications ............................ 6 Package Characteristics ............................................................... 7 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics .............................................................................. 7 REVISION HISTORY 12/2018Rev. 0 to Rev. A Change to Features Section ............................................................. 1 Change to General Description Section ........................................ 1 Changes to Table 1 Table Title, Efficiency at I Parameter, ISO (MAX) Table 1, and Table 2 .......................................................................... 3 Changes to Table 3 and Table 4 ....................................................... 4 Added Electrical Characteristics3.3 V Primary Input Supply/3.3 V Secondary Isolated Supply Section, Table 5, and Table 6 Renumbered Sequentially ................................................. 5 Changes to Table 14 .......................................................................... 9 Changes to Table 17, Table 18, and Table 19 ............................... 11 Changes to Figure 7, Figure 8, and Figure 9................................ 12 Change to Theory of Operations Section .................................... 15 Changes to Ordering Guide .......................................................... 20 6/2018Revision 0: Initial Version Rev. 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