THVD1426: how to accomplish auto-direction control

Dillen Chen

Intellectual 2360 points

Part Number: THVD1426
Other Parts Discussed in Thread: THVD1420,

Hi Team,

We can use THVD1420 with the following circuit to realize automatic 485 transceiver

Can THVD1426 omit this circuit? How to accomplish THVD1426 auto-direction control？

over 2 years ago

0 Clemens Ladisch over 2 years ago

Guru 284330 points

To use the THVD1426, connect the driver signal directly to the D pin. See section 8.4 of the datasheet.

0 Parker Dodson over 2 years ago

TI__Mastermind 46857 points

Hi Dillen,

Yes the THVD1426 has auto-direction control - so you don't need the circuit as described above for the THVD1426.

From Section 8.4 - highlighted text is the most important along with tables 8-1 and 8-2 which describe the functional modes of the driver and receiver.

Please let me know if you have any other questions!

Best,

Parker Dodson

Interface

Interface forum

THVD1426: how to accomplish auto-direction control