TCAL9539: TCAL9539PWR Consult about usage issues

Ivy Chen

Prodigy 40 points

Part Number: TCAL9539

Tool/software:

Could you please provide the furnace temperature welding file for this product
thank you

1 day ago

0 Tyler Townsend 1 day ago

TI__Mastermind 48158 points

Hi Ivy,

Are you referring to reflow soldering?

These two documents might help answer your question.

https://www.ti.com/lit/an/snoa550h/snoa550h.pdf?ts=1759164574864&ref_url=https%253A%252F%252Fwww.google.com%252F

https://www.ti.com/lit/an/spraby1a/spraby1a.pdf?ts=1759164574931&ref_url=https%253A%252F%252Fwww.google.com%252F

Regards,

Tyler

0 Ivy Chen 15 hours ago in reply to Tyler Townsend

Prodigy 40 points

Good afternoon. However, when we were soldering, we found that the pins were not soldered. Could you please help us confirm what the reason isTCAL9539PWR.docx

0 Tyler Townsend 6 hours ago in reply to Ivy Chen

TI__Mastermind 48158 points

Hi Ivy,

This could be multiple different factors. Maybe the reflow profile needs to be hotter peak temperature.

The oxidation could be other materials in the solder paste that is causing the metal of the IC to react in such a way.

Was the TCAL9539 properly placed by the pick and place machine? Looks like the solder welded to the bottom of the pin but did not encapsulate the pin or am I wrong here?

Regards,

Tyler

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TCAL9539: TCAL9539PWR Consult about usage issues