Jun 23, 2022
05:58 AM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Jun 23, 2022
05:58 AM
Thank you very much for answering my question!
According to the official PDF, two kinds of circuit boards are produced
One is differential input mode. In this mode, everything works normally. The schematic diagram is as follows:
The second input mode is single ended input mode (in fact, it is also a differential signal, in which a group of differential signals are input respectively from the two negative terminals of the amplifier). In this mode, the amplifier is easy to enter the overcurrent protection state, while in the same or higher volume, the two groups of differential input mode will not have overcurrent protection at all. The schematic diagram is as follows
What is wrong with the second input mode? Cause the amplifier to enter the overcurrent protection state frequently
Solved! Go to Solution.
1 Solution
Aug 31, 2022
04:46 AM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Aug 31, 2022
04:46 AM
Please check if the AMPSUB+ and AMPSUB- signals are refer to the GND. If it is floating, it could trigger the OCP.
2 Replies
Jun 27, 2022
02:04 AM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Jun 27, 2022
02:04 AM
Hi @ghostwolf ,
Thank you for contributing to the Infineon community.
You are experiencing a problem with over-current protection, whether it is in the hardware or in simulation.
Please provide us with CSD pin waveforms for both input mode to understand the issue better.
Regards,
Nishanth
Aug 31, 2022
04:46 AM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Aug 31, 2022
04:46 AM
Please check if the AMPSUB+ and AMPSUB- signals are refer to the GND. If it is floating, it could trigger the OCP.