I2C Isolators. ADM3260 Datasheet

ADM3260 Isolators. Datasheet pdf. Equivalent

ADM3260 Datasheet
Recommendation ADM3260 Datasheet
Part ADM3260
Description Dual I2C Isolators
Feature ADM3260; Data Sheet Hot Swappable, Dual I2C Isolators with Integrated DC-to-DC Converter ADM3260 11890-001 .
Manufacture Analog Devices
Datasheet
Download ADM3260 Datasheet




Analog Devices ADM3260
Data Sheet
Hot Swappable, Dual I2C Isolators with
Integrated DC-to-DC Converter
ADM3260
FEATURES
isoPower integrated, isolated dc-to-dc converter
Regulated 3.15 V to 5.25 V output
Up to 150 mW output power
High common-mode transient immunity: >25 kV/μs
iCoupler integrated I2C digital isolator
Bidirectional I2C communication
3.0 V to 5.5 V supply/logic levels
Open-drain interfaces
Suitable for hot swap applications
30 mA current sink capability
1000 kHz maximum frequency
20-lead SSOP package with 5.3 mm creepage
High temperature operation: 105°C
Safety and regulatory approvals
UL recognition
2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice 5A
VDE Certificate of Conformity (pending)
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
APPLICATIONS
Isolated I2C, SMBus, and PMBus interfaces
Multilevel I2C interfaces
Central office switching
Telecommunication and data communication equipment
−48 V distributed power systems
−48 V power supply modules
Networking
GENERAL DESCRIPTION
Based on the iCoupler® and isoPower® chip scale transformer
technology, the ADM32601 is a hot swappable digital and power
isolator with two nonlatching, bidirectional communication
channels, supporting a complete isolated I2C interface, and an
integrated isolated dc-to-dc converter, supporting up to
150 mW of isolated power conversion.
iCoupler is a chip scale transformer technology with functional,
performance, size, and power consumption advantages as
compared to optocouplers. The bidirectional I2C channels
eliminate the need for splitting I2C signals into separate transmit
and receive signals for use with standalone optocouplers.
FUNCTIONAL BLOCK DIAGRAM
ADM3260
GNDP
SCL2
SDA2
VDDP
GNDP
DECODE
ENCODE
ENCODE
DECODE
DECODE
ENCODE
ENCODE
DECODE
SIGNAL ISOLATION
GNDISO
SCL1
SDA1
VDDISO
GNDISO
NC
GNDP
POWER ISOLATION
NC
GNDISO
PDIS
PCS
VSEL
VIN
GNDP
OSC
RECT REG
VISO
GNDISO
Figure 1.
Table 1. Power Levels for Isolated Converter
Input Voltage (V) Output Voltage (V) Output Power (mW)
5.0 5.0
150
5.0 3.3
150
3.3 3.3
66
Based on the Analog Devices, Inc., isoPower technology, the
on-chip isolated dc-to-dc converter provides a regulated, isolated
voltage of 3.15 V to 5.25 V with up to 150 mW of output power
(see Figure 1).
With the ADM3260, the iCoupler and isoPower channels, along
with the I2C transceivers, can be integrated with semiconductor
circuitry, which enables a complete isolated I2C interface and
allows the power converter to be implemented in a small form
factor. The ADM3260 is available in 20-lead SSOP package and
has an operating temperature range of −40°C to+105°C.
isoPower uses high frequency switching elements to transfer power
through its transformer. Special care must be taken during printed
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. C
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Technical Support
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Analog Devices ADM3260
ADM3260* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
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EVALUATION KITS
ADM3260 Evaluation Board
DOCUMENTATION
Application Notes
AN-0971: Recommendations for Control of Radiated
Emissions with isoPower Devices
Data Sheet
ADM3260: Hot Swappable, Dual I2C Isolators with
Integrated DC-to-DC Converter Data Sheet
User Guides
UG-666: Evaluating the ADM3260 Hot Swappable Dual I2C
Isolators with Integrated DC-to-DC Converter
UG-724: Simple I2C and Power Isolation with ADM3260
DESIGN RESOURCES
ADM3260 Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
DISCUSSIONS
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SAMPLE AND BUY
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TECHNICAL SUPPORT
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number.
DOCUMENT FEEDBACK
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Analog Devices ADM3260
ADM3260
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
Functional Block Diagram .............................................................. 1 
General Description ......................................................................... 1 
Revision History ............................................................................... 2 
Specifications..................................................................................... 3 
Electrical Characteristics—5 V Primary Input Supply/5 V
Secondary Isolated Supply .......................................................... 3 
Electrical Characteristics—5 V Primary Input Supply/3.3 V
Secondary Isolated Supply .......................................................... 3 
Electrical Characteristics—3.3 V Primary Input Supply/3.3 V
Secondary Isolated Supply .......................................................... 4 
DC-to-DC Converter Characteristics ....................................... 4 
Digital Isolator DC Specifications.............................................. 5 
Digital Isolator AC Specifications .............................................. 5 
Package Characteristics ............................................................... 6 
Regulatory Approvals................................................................... 7 
Insulation and Safety Related Specifications ............................ 7 
DIN V VDE V 0884-10 (VDE V 0884-10) Insulation
Characteristics .............................................................................. 8 
REVISION HISTORY
3/16—Rev. B to Rev. C
Changed VDDP (V) to VIN (V), Table 15.................................. 10
4/15—Rev. A to Rev. B
Changes to Features Section............................................................ 1
Changes to Table 9 and Table 10..................................................... 7
Changes to Functional Description Section ............................... 15
Data Sheet
Recommended Operating Conditions .......................................9 
Absolute Maximum Ratings ......................................................... 10 
ESD Caution................................................................................ 10 
VISO Voltage Truth Table ......................................................... 10 
Pin Configuration and Function Descriptions........................... 11 
Typical Performance Characteristics ........................................... 12 
Test Condition ................................................................................ 14 
Applications Information .............................................................. 15 
Functional Description.............................................................. 15 
Digital Isolator Startup .............................................................. 16 
Typical Application Diagram.................................................... 16 
PCB Layout ................................................................................. 16 
Thermal Analysis ....................................................................... 17 
EMI Considerations................................................................... 17 
Insulation Lifetime ..................................................................... 17 
Applications Example .................................................................... 18 
Outline Dimensions ....................................................................... 19 
Ordering Guide .......................................................................... 19 
6/14—Rev. 0 to Rev. A
Changes to Pin 8, Table 16 ............................................................ 11
12/13—Revision 0: Initial Version
Rev. C | Page 2 of 19







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