ADUM6221A

RECOMMENDED FOR NEW DESIGNS

Dual-Channel Isolator with Integrated DC-to-DC Converter

Data Sheet (Rev. B) Product Selection Table

Part Models: 4
1ku List Price: Starting From $4.44

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Overview

isoPower integrated, isolated DC-to-DC converter
100 mA output supply
Meets CISPR 32/EN55032 Class B emission limits up to 5 Mbps at full load on a 2-layer PCB
Dual DC to 100 Mbps signal isolation channels
28-lead, fine pitch, SOIC with 8.3 mm minimum creepage
High temperature operation: 125°C maximum
High common-mode transient immunity: 100 kV/µs

Safety and regulatory approvals

UL 1577

V_ISO = 5000 V rms for 1 minute

IEC/EN/CSA 62368-1
IEC/CSA 60601-1
IEC/CSA 61010-1
CQC GB 4943.1
DIN EN IEC 60747-17 (VDE 0884-17) (pending)

V_IORM = 596 V peak

The ADuM6221A is a dual-channel digital isolators with an isoPower ^®, integrated, isolated DC-to-DC converter. Based on the Analog Devices, Inc., iCoupler^® technology, the DC-to-DC converter provides regulated, isolated power that meets CISPR 32/EN 55032 Class B limits at full load on a 2-layer printed circuit board (PCB) with ferrites. Popular voltage combinations and the associated output current levels are listed in Table 1.

The ADuM6221A eliminates the need for a separate, isolated DC-to-DC converter in 500 mW, isolated designs. The iCoupler chip 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 and total isolation solution.

The ADuM6221A isolators provide two independent isolation channels (for more details, see the Pin Configurations and Function Descriptions section).

Applications

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)

Part Models: 4
1ku List Price: Starting From $4.44

Documentation

Data Sheet 1

ADuM6221A: Dual-Channel Isolator with Integrated DC-to-DC Converter Data Sheet (Rev.B) 05/21/2024

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADUM6221ABRNZ3	28-Lead SOIC (Wide, Finer Pitch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUM6221ABRNZ3-RL	28-Lead SOIC (Wide, Finer Pitch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUM6221ABRNZ5	28-Lead SOIC (Wide, Finer Pitch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUM6221ABRNZ5-RL	28-Lead SOIC (Wide, Finer Pitch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Evaluation Kits

ADuM6421A Evaluation Board

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Features and Benefits

isoPower integrated, isolated dc-to-dc converter
Meets CISPR 32/EN 55032, Class B emission limits
On-board 6 V to 9 V LDO power supply that provides 5 V to the V_DDP pin
5 V input operation and selectable 3.3 V or 5 V isolated dc-to-dc converter output
Screw terminal connectors for the following
- LDO power supply
- 5 V direct power supply
- Off board PDIS control
- Isolated output supply

Product Details

The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A devices integrate four iCoupler^® on-off keying (OOK) digital isolation channels and iCoupler chip scale isoPower^® transformer technology.

This iCoupler transformer technology enables a small form factor integrated, reinforced isolated signal and power solution, in applications requiring up to 500 mW of isolated power.

Available dc-to-dc converter supply configurations and maximum available power at the elevated ambient temperatures are specified in the ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A data sheet, respectively.

The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A devices provide regulated, isolated power that meets CISPR 32/EN 55032, Class B limits at full load on a 2-layer printed circuit board (PCB) with ferrite beads. Radiated emissions test plots of the EVAL-ADUM6421ARNZ/EVAL-ADUM6421AURNZ are provided in Figure 4 and Figure 5 in the data sheet. All devices in the family include the same isolated dc-to-dc converter and are differentiated by directional digital channel configurations.

The EVAL-ADUM6421ARNZ includes the ADuM6421ABRNZ5 quad-channel digital isolator with integrated, isolated dc-to-dc converter. Alternatively, the EVAL-ADUM6421AURNZ leaves the isolator position unpopulated to support evaluation of the ADuM6420A, ADuM6421A, ADuM6422A, ADuM6423A, or ADuM6424A.

Full specifications for the ADuM6420A/ADuM6421A/ ADuM6422A/ADuM6423A/ADuM6424A are available in the ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A data sheet, which must be consulted in conjunction with the user guide when using the evaluation boards.

Resources

UG-1708: Evaluating the ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A Quad-Channel Isolators with Integrated DC-to-DC Converter (Rev.B)
1/6/2020

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