• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 46 subscribers
  • Views 191 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TLV7211A: Issues with the TLV7211A

Eric Mo
Expert 1030 points

Part Number: TLV7211A
Other Parts Discussed in Thread: TLV7211

 Hi team 

The customer uses TLV7211 to design comparative circuits, and this project has been mass-produced multiple times. However, using the latest batch of TLV7211 (2422+5) will result in more defective products (abnormal output status of the comparison circuit), The failure rate  is pretty high (reaching 80%). I have attached the schematic for this comparative circuit. Can you please help provide any suggestion that might cause this  issue? Thank you!

TLV7211 SCH.pdf 

  • 0
    TI__Guru 68636 points

    Hello Eric,

    The TLV7211 family has undergone a PCN to change the die after March 2024. The "2422"  datecode would place it into the "new die" category (we would need the full datecode to make sure - but a immediate high failure rate among one batch is a sure sign).

    Product Change Notification (PDF)

    If operated within the datasheet specifications, there should not be a difference. The new die meets or exceeds the old die specifications. The basic functionality should be the same. I do not immediately see anything in the schematic that would cause concern.

    We would need a better description of the failure and/or scope photos or measurements of the good and bad behaviors.