ISOW7742-Q1: Version with 3 Reverse Channels

Jessica Riley

Part Number: ISOW7742-Q1
Other Parts Discussed in Thread: ISOW7743, ISOW7843, ISOW7741-Q1

Hello,

I am looking for a digital isolated with integrated power which is functional safety capable. The ISO774x-Q1 series looks perfect, only I require 3 channels in the reverse direction.

ISOW7743 or ISOW7843 would work, but I need functional safety capable.

Any suggestions for a solution?

Thank you and best regards

over 1 year ago

0 Aaditya V. over 1 year ago

TI__Mastermind 20235 points

Hello,

Thank you for your question,

I understand you are looking for a digital isolator with integrated DC to DC with 3 reverse channels. Unfortunately TI does not provide an automotive certified ISOW device with 3 channels yet. As you have already mentioned, the ISOW7743 and ISOW7843 devices are our only 3 reverse channel digital isolators with integrated DC to DC.

One possible solution I have is to flip the ISOW7741-Q1 by 180 degrees. By doing this, the 3 forward channels will essentially become reverse channels. Please take a look at the image below:

0 Jessica Riley over 1 year ago in reply to Aaditya V.

Intellectual 550 points

Unfortunately that does not work for the direction of the isolated power (it is not reversible).

0 Aaditya V. over 1 year ago in reply to Jessica Riley

TI__Mastermind 20235 points

Hello,

Thank you for your reply.

As I mentioned previously, Unfortunately TI does not provide an automotive certified ISOW device with 3 channels. We will take this in consideration for future devices.

Please let us know if you have any additional questions.

Regards,
Aaditya Vittal

Isolation

Isolation forum

ISOW7742-Q1: Version with 3 Reverse Channels