THVD1426: Is there an isolated version of THVD1406/THVD1426 transceiver?

Dmitry Marukh

Prodigy 100 points

Part Number: THVD1426
Other Parts Discussed in Thread: THVD1406, , ISO1430, ISO1410, ISO7721

I am looking for an analog to MAX22026FAWA+ chip. Does TI have any?

8 months ago

0 BOBBY 8 months ago

TI__Guru 53280 points

Hi Dmitry,

I believe ISO1430 or ISO1410 might be the closest versions of the THVD1426/THVD1406.

I've assigned this thread to someone from our isolation product line so see if my suggestions match with theirs. I believe they should get back to you in 24 hours by either confirming my suggestion, providing a different device, or asking for more information on key spec's you need support for isolation.

-Bobby

+1 Clemens Ladisch 8 months ago

Guru 258910 points

No; TI does not make isolated transceivers with auto-direction.

0 Andrew Jackiw 8 months ago in reply to BOBBY

TI__Genius 16230 points

Hi Dmitry,

MAX22026FAWA is an isolated RS-485 transceiver with auto-direction control. TI has a non-isolated RS-485 with auto-direction control that Bobby has suggested (THVD1426/THVD1406).

These can be paired with a digital isolator such as ISO7721 to provide isolation to the system. Currently the closest match to the "MAX" part would be ISO1430 and ISO1410, but as Clemens has said, these do not have integrated auto-detection.

Best,
Andrew

0 BOBBY 8 months ago

TI__Guru 53280 points

To add, we have a reference design for adding auto direction support here:https://www.ti.com/lit/ug/tidubw6/tidubw6.pdf?ts=1695739229670&ref_url=https%253A%252F%252Fwww.google.com%252F

It does require another discrete part to implement.

-Bobby

Interface

Interface forum

THVD1426: Is there an isolated version of THVD1406/THVD1426 transceiver?