TLV742P: Suspected Faulty Batch: TLV74211PDQNR (TI Order# T05664643)

Vicky Lin

Part Number: TLV742P

Tool/software:

TI Original Order Number:** T05664643 C485137, TLV74211PDQNR, TI (Texas Instruments), 1000 pcs
The customer purchased 50 units. All 30 units tested failed. Verification of the customer's circuit diagram revealed that the input voltage was 1.8V, which did not meet the datasheet requirement of 2V. The customer was advised to adjust the voltage. Subsequently, the customer reported using a 2.8V input, but still no output was observed. The components may be defective.

1 month ago

0 Ishaan Shetye 1 month ago

TI__Genius 13490 points

Hi Vicky

Please attach a schematic for the test setup and describe the test parameters.

Please describe what counts as 'failure'? Was 0V seen on the output? How was probing done? Please provide a picture of the test setup.

Thanks

Ishaan

0 Vicky Lin 1 month ago in reply to Ishaan Shetye

Prodigy 20 points

Batch TLV74211PDQNR (TI Order# T05664643).zip

亲爱的

请检查附件。视频为测试视频，输出端子显示 0V。

0 Vicky Lin 1 month ago in reply to Ishaan Shetye

Prodigy 20 points

Dear,

Please check the attached file. The video is a test video, and the output terminal shows 0V.

0 Vicky Lin 1 month ago in reply to Vicky Lin

Prodigy 20 points

Dear,

Please check the attached file. The video is a test video, and the output terminal shows 0V.

0 Ishaan Shetye 1 month ago in reply to Vicky Lin

TI__Genius 13490 points

Hi Vicky,

This device comes in an X2SON package which is nearly symmetrical. Please confirm it is being soldered correctly on the board. I suspect this to be a reason for you not seeing any output.

In the video, I also noticed the voltage reading bouncing. Could you please confirm the load? It is possible that the device starts and stays in current limit, potentially because of a OUT to GND fault. A scopeshot of VIN, VOUT, IOUT would be very helpful.

Thanks

Ishaan

Power management

Power management forum

TLV742P: Suspected Faulty Batch: TLV74211PDQNR (TI Order# T05664643)