2 Hot Swappable, Dual I C Isolators with Integrated DC-to-DC Converter Data Sheet ADM3260 FEATURES FUNCTIONAL BLOCK DIAGRAM isoPower integrated, isolated dc-to-dc converter ADM3260 Regulated 3.15 V to 5.25 V output GNDP DECODE ENCODE GNDISO Up to 150 mW output power High common-mode transient immunity: >25 kV/s SCL2 ENCODE DECODE SCL1 2 iCoupler integrated I C digital isolator 2 DECODE ENCODE SDA2 SDA1 Bidirectional I C communication 3.0 V to 5.5 V supply/logic levels ENCODE DECODE VDDP VDDISO Open-drain interfaces SIGNAL ISOLATION GNDISO Suitable for hot swap applications GNDP 30 mA current sink capability NC NC 1000 kHz maximum frequency 20-lead SSOP package with 5.3 mm creepage POWER ISOLATION GNDP GNDISO High temperature operation: 105C PDIS PCS VSEL Safety and regulatory approvals UL recognition VIN VISO RECT REG OSC 2500 V rms for 1 minute per UL 1577 GNDP GNDISO CSA Component Acceptance Notice 5A VDE Certificate of Conformity (pending) Figure 1. DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 V = 560 V peak IORM Table 1. Power Levels for Isolated Converter Input Voltage (V) Output Voltage (V) Output Power (mW) APPLICATIONS 5.0 5.0 150 2 Isolated I C, SMBus, and PMBus interfaces 5.0 3.3 100 2 Multilevel I C interfaces 3.3 3.3 66 Central office switching Telecommunication and data communication equipment 48 V distributed power systems 48 V power supply modules Networking Based on the Analog Devices, Inc., isoPower technology, the GENERAL DESCRIPTION on-chip isolated dc-to-dc converter provides a regulated, isolated Based on the iCoupler and isoPower chip scale transformer voltage of 3.15 V to 5.25 V with up to 150 mW of output power 1 technology, the ADM3260 is a hot swappable digital and power (see Figure 1). isolator with two nonlatching, bidirectional communication 2 channels, supporting a complete isolated I C interface, and an With the ADM3260, the iCoupler and isoPower channels, along 2 integrated isolated dc-to-dc converter, supporting up to with the I C transceivers, can be integrated with semiconductor 2 150 mW of isolated power conversion. circuitry, which enables a complete isolated I C interface and allows the power converter to be implemented in a small form iCoupler is a chip scale transformer technology with functional, factor. The ADM3260 is available in 20-lead SSOP package and performance, size, and power consumption advantages as has an operating temperature range of 40C to+105C. 2 compared to optocouplers. The bidirectional I C channels 2 isoPower uses high frequency switching elements to transfer power eliminate the need for splitting I C signals into separate transmit through its transformer. Special care must be taken during printed and receive signals for use with standalone optocouplers. circuit board (PCB) layout to meet emissions standards. See the AN-0971 Application Note for board layout recommendations. 1 Protected by U.S. Patents 5,952,849 6,873,065 and 7,075,329. Other patents are pending. Rev. E 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 20132020 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. 11890-001ADM3260 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Recommended Operating Conditions .......................................9 Applications ...................................................................................... 1 Absolute Maximum Ratings ......................................................... 10 Functional Block Diagram .............................................................. 1 ESD Caution ............................................................................... 10 General Description ......................................................................... 1 VISO Voltage Truth Table ........................................................ 10 Revision History ............................................................................... 2 Pin Configuration and Function Descriptions .......................... 11 Specifications .................................................................................... 3 Typical Performance Characteristics .......................................... 12 Electrical Characteristics5 V Primary Input Supply/5 V Test Condition ................................................................................ 14 Secondary Isolated Supply .......................................................... 3 Applications Information ............................................................. 15 Electrical Characteristics5 V Primary Input Supply/3.3 V Functional Description.............................................................. 15 Secondary Isolated Supply .......................................................... 3 Digital Isolator Startup .............................................................. 16 Electrical Characteristics3.3 V Primary Input Supply/3.3 V Typical Application Diagram ................................................... 16 Secondary Isolated Supply .......................................................... 4 PCB Layout ................................................................................. 16 DC-to-DC Converter Characteristics ....................................... 4 Thermal Analysis ....................................................................... 17 Digital Isolator DC Specifications.............................................. 5 EMI Considerations ................................................................... 17 Digital Isolator AC Specifications .............................................. 5 Insulation Lifetime ..................................................................... 17 Package Characteristics ............................................................... 6 Applications Example .................................................................... 18 Regulatory Approvals .................................................................. 7 Outline Dimensions ....................................................................... 19 Insulation and Safety Related Specifications ............................ 7 Ordering Guide .......................................................................... 19 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics .............................................................................. 8 REVISION HISTORY 6/2020Rev. D to Rev. E 4/2015Rev. A to Rev. B Change to PCB Layout Section..................................................... 16 Changes to Features Section ............................................................ 1 Changes to Table 9 and Table 10 .................................................... 7 11/2017Rev. C to Rev. D Changes to Functional Description Section ............................... 15 Change to Table 1 ............................................................................. 1 6/2014Rev. 0 to Rev. A 3/2016Rev. B to Rev. C Changes to Pin 8, Table 16 ............................................................ 11 Changed VDDP (V) to VIN (V), Table 15 ................................. 10 12/2013Revision 0: Initial Version Rev. E Page 2 of 19