This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UCC25660: UCC25660: UCC25660

Part Number: UCC25660
Other Parts Discussed in Thread: UCC25600

Dear team,


Below are the details of the circuit I require: Find below image, 
1. Input is the sine wave,
2. When the voltage rise above threshold A, output must be high.
3. When the voltage falls below threshold B, output must be low.

I have previously attempted to implement this functionality using a hysteresis comparator with a 300mV hysteresis. However, the outputs obtained did not meet the specified requirements. Find below image, 

- For U1 Output: When the voltage falls below threshold A, the output is low. When the voltage rises above threshold B, the output is high. (Find below image. Note : Blue line - Input, Green - Reference of 2.5V, Red - Output)

- For U2 Output: When the voltage falls below threshold A, the output is high. When the voltage rises above threshold B, the output is low. (Find below image. Note : Blue line - Input, Green - Reference of 2.5V, Red - Output)

I am seeking a solution that accurately meets the required specifications and ensures the desired output behavior.

Reason for our requirement : 

Please refer to the provided link.

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1342924/ucc25660-ucc25660_fault-condition

I've already submitted a query regarding my requirements. The response indicated that the fault condition cannot be disabled in UCC25660. Therefore, we are exploring alternative methods to operate in the ZCS or capacitive region.

Could you please provide me with information on any suitable circuits or components that can achieve the desired functionality? Additionally, I would appreciate any guidance or recommendations you can offer to ensure successful implementation.

Thank you very much for your attention to this matter. I look forward to your prompt response.

Warm regards,

Manimuthu