Power Management

Q&A Isolated DC-DC converter design?

Isolated DC-DC converter design?

BOOM

on May 22, 2022

Category: Software

Product Number: ADuM3223

What's a low parts-count isolated DC/DC converter design using the ADuM3223 or similar IC?

Need 2A continuous at 5V out.

www.analog.com/.../ADuM3223_4223.pdf

added requirements
[edited by: BOOM at 2:57 PM (GMT -4) on 22 May 2022]

Tags: adum3223 software DC-DC Converter Digital Isolation Technology Isolated Gate Drivers Galvanic Isolation gate driver smps Show More

0 EZAutoReply

on May 23, 2022 6:37 PM
DC2014A Evaluation Board | Analog Devices
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0 BOOM
on May 23, 2022 9:41 PM in reply to EZAutoReply
Is there a way to achieve current limiting or constant current with the LT8302?

Can you describe the behavior of the internal current limiting in terms of continuous load?
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on May 24, 2022 10:42 AM in reply to BOOM
The IC can only regulate the output voltage and deliver 2A. It cannot regulate output current.
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0 BOOM
on May 24, 2022 8:41 PM in reply to EZAutoReply
Would a current limiter on the secondary side confuse the regulator?

Can this regulator power multiple transformers, each supplying a separate galvanically isolated load?

If i put current limiters on each secondary, and the loads are drawing different amounts of current, will that confuse the SMPS?
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on May 25, 2022 1:13 PM in reply to BOOM
Use LT3083 as a current limiter. The input of the linear regulator circuit is connected to the output of the LT8302 circuit.
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