ISO1430: ISO1430BDWR, ISO1432BDWR

Meghna

Prodigy 165 points

Part Number: ISO1430
Other Parts Discussed in Thread: ISO1432,

Tool/software:

could you please review the schematic for half & full duplex and provide feedback

6 months ago

0 Varun Kumar 6 months ago

TI__Genius 9540 points

Hi Nayan,

The Schematics look good to go. No Issues Spotted.

Regards
Varun

0 Meghna 6 months ago in reply to Varun Kumar

Prodigy 165 points

Thanks for the feedback, wanted to know the use case 910E res as it was connected in EVM, but didnt find the usecase anywhere

0 Varun Kumar 6 months ago in reply to Meghna

TI__Genius 9540 points

Hi Nayan,

If you're referring to R1 and R2 from the EVM Schematics - then it is DNI and is not installed currently. The Purpose of those resistors are for external passive failsafe Biasing of the bus lines A and B. Refer this Appnote for more details : https://www.ti.com/lit/an/slyt324/slyt324.pdf

The ISO1430 and ISO1432 has internal failsafe biasing and do not need these external failsafe resistors. To know more on old vs new device with failsafe capability, refer this appnote: https://www.ti.com/lit/an/slyt514/slyt514.pdf?ts=1748339353785&ref_url=https%253A%252F%252Fwww.google.com%252F

Regards
Varun

0 Meghna 6 months ago in reply to Varun Kumar

Prodigy 165 points

Thank you so much for the info

Isolation

Isolation forum

ISO1430: ISO1430BDWR, ISO1432BDWR