topic Re: Some problems with UJA1078 in Power Management

Some problems with UJA1078

ZhaozhangChen — Fri, 08 Jul 2022 08:41:53 GMT

Dear Support,

UJA1078 High-speed CAN transceiver, inter-operable and downward compatible with CAN transceiver TJA1042, and compatible with the ISO 11898-2 and ISO 11898-5 standards.

1. UJA1078 supports ISO 16845 standard?

2.Confirm contains filtering to detect valid remote wake up event?

3.Confirm the CAN transceiver voltage reference pins are open circuit?

Re: Some problems with UJA1078

TomasVaverka — Fri, 08 Jul 2022 11:00:18 GMT

Dear Zhaozhang,

1. The integrated HS-CAN transceiver is ISO 11898-2 and 11898-5 compliant.

2. There is a filter at the receiver input that prevents unwanted wake-up events occurring due to automotive transients or EMI.

The wake-up sequence consists of a recessive, dominant, recessive, dominant signal on the CAN-bus within the specified time:

Wake-up frame (WUF) detection is not supported.

3. I do not fully understand this question. Can you please rephrase it or provide more details?

Best regards,

Tomas

Re: Some problems with UJA1078

ZhaozhangChen — Mon, 11 Jul 2022 03:03:37 GMT

What is the tolerance of CAN transmission rate at 500 Kbps?