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ADUM3221:  Isolated 4 A Dual-Channel Gate Driver

Product Details

Product Status:Recommended for New Designs

The ADuM3220/ADuM3221 are 4 A isolated, dual-channel gate drivers based on the Analog Devices, Inc., iCoupler® technology. 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 ADuM3220/ADuM3221 isolators provide two independent isolation channels. They have a maximum propagation delay of 60 ns and 5 ns channel-to-channel matching. In comparison to gate drivers employing high voltage level translation methodologies, the ADuM3220/ADuM3221 offer the benefit of true, galvanic isolation between the input and each output, enabling voltage translation across the isolation barrier. The ADuM3220 has shoot-through protection logic, but the ADuM3221 does not have. They both offer a default output low characteristic as required for gate drive applications. The ADuM3220/ADuM3221 operate with an input supply voltage ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems. The outputs of the ADuM3220A/ADuM3221A can be operated at supply voltages from 5 V to 18 V. The outputs of the ADuM3220B/ ADuM3221B can be operated at supply voltages from 8 V to 18 V.

The ADuM3220/ADuM3221 specify the junction temperature from −40°C to +125°C.

Applications
  • Isolated synchronous dc/dc converters
  • MOSFET/IGBT gate drivers

FEATURES and BENEFITS

  • 4 A peak output current
  • Precise timing characteristics
    60 ns maximum isolator and driver propagation delay
    5 ns maximum channel-to-channel matching
  • High junction temperature operation: 125°C
  • 3.3 V to 5 V input logic
  • 4.5 V to 18 V output drive
  • UVLO at 2.5 V VDD1 and 4.1 V VDD2
  • Thermal shutdown protection at >150°C
  • Output shoot-through logic protection
  • Default low output
  • High frequency operation:
    dc to 1 MHz
  • CMOS input logic levels
  • Automotive versions qualified per AEC-Q100
  • See data sheet for additional features

Functional Block Diagram for ADuM3221

Documentation

Title Content Type File Type
ADuM3220/ADuM3221: Isolated 4 A Dual-Channel Gate Driver Data Sheet (Rev C, 10/2012) (pdf, 669 kB) Data Sheets PDF
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices  (pdf, 406 kB) Application Notes PDF
AN-913: Isolating I2C Interfaces  (pdf, 280 kB) Application Notes PDF
AN-727: iCoupler® Isolation in RS-485 Applications  (pdf, 282 kB) Application Notes PDF
AN-740: iCoupler® Isolation in RS-232 Applications  (pdf, 716 kB) Application Notes PDF
AN-770: iCoupler® Isolation in CAN Bus Applications  (pdf, 234 kB) Application Notes PDF
AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products  (pdf, 246 kB) Application Notes PDF
AN-825: Power Supply Considerations in iCoupler Isolation Products  (pdf, 181 kB) Application Notes PDF
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.
Webcasts WEBCAST
UG-217: iCoupler ADuM322XEBZ, 4 A Output-Isolated Gate Driver Evaluation Board  (pdf, 148 kB) User Guides PDF
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary  (pdf, 291 kB)
By Flow Zhao, Design Engineer
Technical Articles PDF
NAppkin Note: Lowering the Power of the ADuM524x  (pdf, 223 kB)
By Mark Cantrell, Senior Applications Engineer
Technical Articles PDF
Micro-Transformers Provide Signal and Power Isolation for Hybrid Electric Vehicles  (pdf, 234 kB)
By Baoxing Chen, Sr. Staff Engineer, Analog Devices, Inc.
Technical Articles PDF
High Speed Digital Isolators Using Microscale On-Chip Transformers  (pdf, 2717 kB)
By Baoxing Chen, John Wynne, and Ronn Kliger
Technical Articles PDF
Medical Devices Demand Stringent Isolation Techniques
(EDN, 9/28/2006)
Technical Articles HTML
Digital Isolator Product Selection and Resource Guide  (pdf, 640 kB) Product Selection Guide PDF
Automotive Grade Digital Isolators - ADuM120xW/ADuM130xW/ADuM140xW (2008)  (pdf, 1153 kB) Product Selection Guide PDF
Analog Devices Achieves Major Milestone by Shipping 1 Billionth Channel of iCoupler Digital Isolation (19 Sep 2013) Press Releases HTML
iCoupler Isolation Provides Size, Cost, and Thermal Improvements Relative to Optocouplers  (pdf, 67 kB) Overview PDF
Agilent/NVE GMR Isolators−Performance Comparison to Analog Devices iCoupler  (pdf, 378 kB) Overview PDF
ADuM2400/ADuM2401/ADuM2402 Quad-Channel Digital Isolators  (pdf, 184 kB)
The ADuM240x family of quad-channel isolators provides 5kV isolation and eliminates the need for multiple optocouplers and their accompanying external discrete components.
Overview PDF
ADuM130x/ADuM140x Triple/Quad Digital Isolators  (pdf, 126 kB)
The ADuM130x/ADuM140x family of triple-/quad-channel isolators eliminates the need for multiple optocouplers and their accompanying external discrete components.
Overview PDF
ADuM125x/ADuM225x Dual-Channel, Hot-Swappable, I2C® Bidirectional Digital Isolators with up to 5 kV Isolation  (pdf, 1493 kB)
The ADuM125x/ADuM225x are dual-channel bi-directional I2C digital isolators that are hot-swappable and capable of data rates up to 1MHz.
Overview PDF
2008 Medical Solution Profile  (pdf, 126 kB)
High Performance ICs for Medical Imaging, Patient Monitoring, and Instrumentation
Overview PDF
iCoupler Digital Isolators Qualified for Automotive Applications Overview HTML
isoPower® - Isolated dc-to-dc Power in the smallest Package Overview HTML
RAQs index Rarely Asked Questions HTML
Can I replace an optocoupler with an iCoupler product in an existing design? FAQs/RAQs HTML
What are some of the distinguishing features of the iCoupler products? FAQs/RAQs HTML
What communications protocols are supported by iCoupler products? FAQs/RAQs HTML
Do iCoupler products have VDE certification for reinforced insulation? FAQs/RAQs HTML
With which regulatory standards do iCoupler products comply? FAQs/RAQs HTML
How much isolation can iCoupler products provide? FAQs/RAQs HTML
What is iCoupler technology? FAQs/RAQs HTML
What are optocouplers? What is optical isolation? FAQs/RAQs HTML
What is capacitive isolation? FAQs/RAQs HTML
What is isolation? Why is it needed? FAQs/RAQs HTML
How is isolation specified? FAQs/RAQs HTML
What is isolation rating? FAQs/RAQs HTML
What is the relationship between working voltage and isolation rating? FAQs/RAQs HTML
What is the difference between basic and double (or reinforced) insulation levels? FAQs/RAQs HTML
What are transient immunity and common-mode rejection? FAQs/RAQs HTML
What other parameters are important when considering an isolation device? FAQs/RAQs HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADUM3221 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADUM3221ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.08 $1.60 Y  Material Info PCN Purchase Sample
ADUM3221ARZ-RL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.60 Y  Material Info PCN Purchase
ADUM3221BRZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.08 $1.60 Y  Material Info PCN Purchase Sample
ADUM3221BRZ-RL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.60 Y  Material Info PCN Purchase
ADUM3221WARZ Status: Production SOIC 150 MIL 8 Auto Tube, 98 - - Y  Material Info Notify Me Purchase Sample
ADUM3221WARZ-RL7 Status: Production SOIC 150 MIL 8 Auto Reel, 1000 - - Y  Material Info Notify Me Purchase
ADUM3221WBRZ Status: Production SOIC 150 MIL 8 Auto Tube, 98 - - Y  Material Info Notify Me Purchase Sample
ADUM3221WBRZ-RL7 Status: Production SOIC 150 MIL 8 Auto Reel, 1000 - - Y  Material Info Notify Me Purchase
Price Table Help

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.

EVAL-ADUM3221: ADuM3220/ADuM3221 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADUM3221AEBZ Status: Production Evaluation Board $40.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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