topic Re: MC33790 in Digital Signal Controllers

MC33790

MNRH — Mon, 13 Jun 2022 06:24:53 GMT

Hi,

We are using the MC33790 for establishing an a DSI1.0 communication with a sensor module MC33793

As per the document we have provided the circuit with the VCC as 5V and Vsup as 24V while sending the data the Idle voltage is coming only up to 11.5V, not 24V can someone explain to me why the idle voltage is not reaching the expected 24V.

Thanks

Rakesh

Re: MC33790

guoweisun — Thu, 16 Jun 2022 06:02:51 GMT

Does it work well if Vsup down to 11.5V?

Re: MC33790

MNRH — Thu, 23 Jun 2022 12:35:43 GMT

Hi,

It was an issue with the DSIxF and DSIxS pin status if it is 1,0 respectively this issue occurs if it is set to 1,1 the VIDLE goes to 24V.

No it's not working with the MC33793 even after fixing the V Idle voltage issue

Re: MC33790

guoweisun — Fri, 24 Jun 2022 05:51:57 GMT

Please show your schematic here!

Re: MC33790

MNRH — Wed, 29 Jun 2022 07:02:19 GMT

Re: MC33790

MNRH — Wed, 29 Jun 2022 07:03:36 GMT

No, It won't work

Re: MC33790

guoweisun — Wed, 29 Jun 2022 08:00:30 GMT

So your company is Dorman Products, right?