Dual-Channel Isolators with Integrated dc-dc Converter (1/1 Channel Directionality)
The ADuM5210/ADuM5211/ADuM5212 are dual-channel digital isolators with isoPower®, an integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides regulated, isolated power that is adjustable between 3.15 V and 5.25 V. Input supply voltages can range from slightly below the required output to significantly higher. Popular voltage combinations and their associated power levels are shown in Table 2 in the data sheet.
The ADuM5210/ADuM5211/ADuM5212 eliminate the need for a separate, isolated dc-to-dc converter in low power, 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, total isolation solution.
isoPower uses high frequency switching elements to transfer power through its transformer. Take special care during printed circuit board (PCB) layout to meet emissions standards.See the AN-0971 Application Note for board layout recommendations.Applications
- RS-232 transceivers
- Power supply start-up bias and gate drives
- Isolated sensor interfaces
- Industrial PLCs
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
The EVAL-ADuM5211EBZ supports the ADuM5210 / ADuM5211 / ADuM5212 and ADuM6210 / ADuM6211 / ADuM6212 150 mW isolated power modules. It provides a JEDEC standard SSOP20 pad layout as well as support for setting the desired output voltage, setting enable control and providing multiple positions for on-board loads and bypass capacitors.
isoPower devices employ high frequency, high power switching circuits to enable power transfer across chip scale, air core transformers. The evaluation board includes EMI mitigation recommendations from the AN-0971 Application Note. With the included techniques, this PCB and power module is capable of meeting the requirements of CISPER22 Class A or Class B depending on the voltage and load range.
Complete specifications for the ADuM5210 / ADuM5211/ ADuM5212 and ADuM6210 / ADuM6211 / ADuM6212 are provided in the ADuM5210 / ADuM5211 / ADuM5212 and ADuM6210 / ADuM6211 / ADuM6212 data sheets, available from Analog Devices, Inc., and should be consulted in conjunction with this user guide when using the evaluation board.
Safety and Regulatory Compliance
Safety and Regulatory Compliance Information
The iCoupler® family of digital isolation products have been tested and approved by various regulatory agencies,...
MS-2511: Integrated Signal and Power Isolation Provide Robust and Compact...
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.
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.