Quad-Channel Isolators with Integrated DC-to-DC Converter Data Sheet ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A FEATURES FUNCTIONAL BLOCK DIAGRAM isoPower integrated, isolated dc-to-dc converter 1 28 V V DD1 DD2 100 mA output supply GND 2 27 GND 1 2 AEC-Q100 qualified for automotive applications 3 26 GND GND 1 2 ADuM6421AW (ADuM6423AW pending) V /V 4 25 V /V IA OA 4-CHANNEL iCoupler CORE OA IA Meets CISPR 32/EN55032 Class B emission limits up to LOW POWER ON-OFF KEYING V /V 5 24 V /V IB OB OB IB 5 Mbps at a full load on a 2-layer PCB ADuM6420A/ADuM6421A/ V /V 6 23 V /V Quad dc to 100 Mbps signal isolation channels IC OC ADuM6422A/ADuM6423A/ OC IC ADuM6424A 28-lead, fine pitch, SOIC with 8.3 mm minimum creepage V /V 7 22 V /V ID OD OD ID High temperature operation: 125C maximum LOW RADIATED EMISSIONS DC TO DC 21 GND 8 GND 1 2 High common-mode transient immunity: 100 kV/s PDIS 9 PCS 20 V SEL Safety and regulatory approvals (pending) GND 10 19 GND 1 ISO UL recognition (pending) V 11 OSC RECT REG 18 V DDP ISO 5000 V rms for 1 minute per UL 1577 GND 12 17 GND ISO 1 CSA Component Acceptance Notice 5A (pending) 13 16 NIC NIC VDE V 0884-11 certificate of conformity (pending) VIORM = 566 V peak GND 14 15 GND 1 ISO CQC certification per GB4943.1-2011 (pending) NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING. APPLICATIONS Figure 1. RS-232 transceivers Power supply start-up bias and gate drives Isolated sensor interfaces Automotive on-board charger (OBC) and dc to dc Industrial programmable logic controllers (PLCs) GENERAL DESCRIPTION The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ 1 ADuM6424A are quad-channel digital isolators with an ADuM6424A isolators provide four independent isolation isoPower, integrated, isolated dc-to-dc converter. Based on the channels (see the Pin Configurations and Function Descriptions Analog Devices, Inc., iCoupler technology, the dc-to-dc for additional information). converter provides regulated, isolated power that meets CISPR Table 1. ADuM6420A/ADuM6421A/ADuM6422A/ 32/EN 55032 Class B limits at a full load on a 2-layer printed ADuM6423A/ADuM6424A Output Current Levels circuit board (PCB) with ferrites. Popular voltage combinations ISO Current, I (mA) ISO and the associated output current levels are listed in Table 1. V (V) V (V) 85C 105C 125C DDP ISO The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ 5 5 100 65 30 ADuM6424A eliminate the need for a separate, isolated dc-to- 5 3.3 100 65 30 dc converter in 500 mW, isolated designs. The iCoupler chip 3.3 3.3 60 60 20 scale transformer technology is used for isolated logic signals and for the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation 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. B 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. Tel: 781.329.4700 2021 Analog Devices, Inc. All rights reserved. No license is granted by implication or otherwise under any patent or patent rights of Analog Technical Support www.analog.com Devices. Trademarks and registered trademarks are the property of their respective owners. 21365-001ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 DIN V VDE V 0884-11 Insulation Characteristics ............... 14 Applications ...................................................................................... 1 Recommended Operating Conditions .................................... 14 Functional Block Diagram .............................................................. 1 Absolute Maximum Ratings ......................................................... 15 General Description ......................................................................... 1 ESD Caution ............................................................................... 15 Revision History ............................................................................... 2 Pin Configurations and Function Descriptions ......................... 16 Specifications .................................................................................... 3 Truth Table ................................................................................. 21 Electrical Characteristics5 V Primary Input Supply/5 V Typical Performance Characteristics .......................................... 22 Secondary Isolated Supply .......................................................... 3 Terminology .................................................................................... 25 Electrical Characteristics5 V Primary Input Supply/3.3 V Theory of Operation ...................................................................... 26 Secondary Isolated Supply .......................................................... 3 Applications Information ............................................................. 27 Electrical Characteristics3.3 V Primary Input Supply/3.3 V PCB Layout ................................................................................. 27 Secondary Isolated Supply .......................................................... 4 Thermal Analysis ....................................................................... 28 Electrical Characteristics5.0 V Operation Digital Isolator Channels Only .............................................................................. 4 Propagation Delay Related Parameters ................................... 28 Electrical Characteristics3.3 V Operation Digital Isolator EMI Considerations ................................................................... 28 Channels Only .............................................................................. 6 Power Consumption .................................................................. 28 Electrical Characteristics2.5 V Operation Digital Isolator Insulation Lifetime ..................................................................... 28 Channels Only .............................................................................. 9 Outline Dimensions ....................................................................... 30 Electrical Characteristics1.8 V Operation Digital Isolator Ordering Guide .......................................................................... 30 Channels Only ............................................................................ 11 Automotive Products ................................................................ 31 Package Characteristics ............................................................. 13 Regulatory Approvals ................................................................ 13 Insulation and Safety Related Specifications .......................... 13 REVISION HISTORY 4/2021Rev. A to Rev. B Added Electrical Characteristics3.3 V Primary Input Added ADuM6423A and ADuM6424A ........................ Universal Supply/3.3 V Secondary Isolated Supply Section, Table 4, Changes to Features Section, Applications Section, and Figure 1 .. 1 Electrical Characteristics5.0 V Operation Digital Isolator Changes to Table 2 and Table 3...................................................... 3 Channels Only Section, and Table 5 ............................................... 4 Changes to Table 4 and Table 5...................................................... 4 Changes to Table 7 ............................................................................ 5 Changes to Table 7 and Table 8...................................................... 6 Removed Table 7 and Table 8 ......................................................... 6 Changes to Table 10 ......................................................................... 7 Changes to Table 8 ............................................................................ 6 Changes to Table 11 ......................................................................... 9 Removed Table 9 ............................................................................... 7 Changes to Table 13 ....................................................................... 10 Changes to Table 10 .......................................................................... 7 Changes to Table 14 and Table 16 ............................................... 11 Changes to Table 11 and Table 13 .................................................. 8 Changes to Table 23 ....................................................................... 15 Changes to Table 14 .......................................................................... 9 Added Figure 6 and Table 27 Renumbered Sequentially ........ 19 Changes to Table 21 ....................................................................... 12 Added Figure 7 and Table 28 ........................................................ 20 Changes to Table 23 ....................................................................... 13 Changes to PCB Layout Section, Table 31, and Figure 25 ........ 27 Change to Table 24 ........................................................................ 14 Changes to Ordering Guide .......................................................... 30 Change to Table 25 ........................................................................ 15 Added Automotive Products Section .......................................... 31 Change to Table 26 ........................................................................ 16 Changes to Table 28 ....................................................................... 17 12/2020Rev. 0 to Rev. A Changes to Figure 6, Figure 7, and Figure 8 ............................... 18 Changes to Table 1 ........................................................................... 1 Changes to PCB Layout Section, Figure 22, and Figure 23 ...... 23 Changes to Electrical Characteristics5 V Primary Input Change to Thermal Analysis Section .......................................... 24 Supply/5 V Secondary Isolated Supply Section ............................ 3 Changes to Ordering Guide .......................................................... 26 Moved Electrical Characteristics5 V Primary Input Supply/3.3 V Secondary Isolated Supply Section and Table 6 12/2019Revision 0: Initial Version Renumbered Sequentially ............................................................... 3 Rev. B Page 2 of 31