TPS65381A-Q1: Varnish treatment

Koichiro Tashiro

Part Number: TPS65381A-Q1

Hi,

My customer wants to do varnish treatment for moisture exclusion and isolation.
Is there any problems or limitations to cover TPS65381A after the device is soldered on PCB?

Thanks and regards,
Koichiro Tashiro

over 5 years ago

0 Ivan Calzada over 5 years ago

TI__Expert 4690 points

Hi Tashiro-san,

In general it has not ever been an issue in the past using a conformal coat on the device. I am checking with our packaging team to determine if there are any specific guidelines on applying conformal coat on HTSSOP packaged with power pad.

Regards,
Ivan

0 Koichiro Tashiro over 5 years ago in reply to Ivan Calzada

TI__Mastermind 22945 points

Hi Ivan,

Any updates from the package team?

Thanks and regards,
Koichiro Tashiro

0 Layne J over 5 years ago in reply to Koichiro Tashiro

TI__Genius 12735 points

Hi Tashiro,

Ivan is currently out of office and will be returning next week, please expect a response by Wednesday, August 19th.

Best regards,

Layne J

0 Ivan Calzada over 5 years ago in reply to Layne J

TI__Expert 4690 points

Hi Tashiro-san,

Please find below the response from packaging team:

TI’s official position is we don’t recommended any type of conformal coating to customers. Selection of conformal coating is based on product application, manufacturing process and working environment that TI doesn’t control.

Customer should select the material that best fit their condition and application.

Regards,
Ivan

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TPS65381A-Q1: Varnish treatment