The ADuM3223/ADuM4223 are 4 A isolated, half-bridge gate drivers that employ the Analog Devices, Inc., iCoupler® technology to provide independent and isolated high-side and low-side outputs. The ADuM3223 provides 3000 V rms isolation in the narrow body, 16-lead SOIC package, while the ADuM4223 provides 5000 V rms isolation in the wide body, 16-lead SOIC package. Combining high speed CMOS and monolithic transformer technology, these isolation components provide outstanding performance characteristics superior to the alternatives, such as the combination of pulse transformers and gate drivers.
The ADuM3223/ADuM4223 isolators each provide two independent isolated channels. They operate with an input supply ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems. In comparison to gate drivers employing high voltage level translation methodologies, the ADuM3223/ADuM4223 offer the benefit of true, galvanic isolation between the input and each output. Each output may be continuously operated up to 565 VPEAK relative to the input, thereby supporting low-side switching to negative voltages. The differential voltage between the high-side and low-side may be as high as 800 VPEAK.
As a result, the ADuM3223/ADuM4223 provide reliable control over the switching characteristics of IGBT/MOSFET configurations over a wide range of positive or negative switching voltages.
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|ADuM3223/ADuM4223: Isolated Precision Half-Bridge Driver, 4 A Output Data Sheet (Rev D, 04/2014) (pdf, 415 kB)||Data Sheets|
ADuM3223: iCoupler Gate Driver Motor Control Demo
Three ADuM3223 gate drivers isolate control signals from a power stage connected to a rectified AC mains input. The six pwm control signals from a Blackfin EZ Kit drive six IGBT gates to control a 3-phase induction motor at variable speed.
ADuM3223 / 4223 Isolated 1/2 Gate Drivers with iCoupler Technology
Learn how the ADuM3223 and ADuM4223 isolated gate drivers based on iCoupler® digital isolator technology can simplify the design of a robust half-bridge MOSFET driver versus optocoupler and other discrete solutions.
Solving Isolation Challenges in Power Conversion Applications
This webcast will present solutions to isolation challenges in power conversion applications. Among the topics to be discussed are the limitations of traditional methods of isolation (such as utilization of optocouplers and pulse transformers) vs. more efficient and cost effective solutions that utilize digital isolators. If you are currently using optocouplers and pulse transformers, this is a webcast you should attend.
|UG-368: Evaluation Board for the ADuM3223/ADuM4223 iCoupler, 4 A, Isolated Precision Half-Bridge Drivers (PDF, 497 kB)||User Guides|
|MS-2663-1: Powering the Isolated Side of Your Half-Bridge Configuration (pdf, 188 kB)||Technical Articles|
|MS-2318: Design Fundamentals of Implementing an Isolated Half-Bridge Gate Driver (pdf, 151 kB)||Technical Articles|
|Analog Devices Achieves Major Milestone by Shipping 1 Billionth Channel of iCoupler Digital Isolation (19 Sep 2013)||Press Releases||HTML|
|Isolated Half-bridge Gate Drivers with Analog Devices’ iCoupler® Digital Isolator Technology Deliver Industry-best Speed and Reliability (08 May 2012)||Press Releases||HTML|
|Digital Isolator Product Selection and Resource Guide (pdf, 640 kB)||Product Selection Guide|
|Glossary of EE Terms||Glossary||HTML|
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.