• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 82 subscribers
  • Views 548 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.

TMS320F2812 PTP package Exposed pad connection

Gerald Eberahrdt
Intellectual 335 points

Other Parts Discussed in Thread: TMS320F28335

I'm finalizing a design using the 28335 PTP package which has a exposed pad. It is not clear in the datasheet nor the thermal TI application note "PowerPAD Thermal Enhanced Package" (SLMA002G) cornering connecting the exposed pad to circuit common (GND / VSS).

The only electrical reference in the TMS320F28335 datasheet (SPRS439M, Revised August 2012) is on page 14 and states; "The powerpad on the bottom side of the PTP package is not connected to the ground (GND)
of the die. " 

Does this imply that the pad is electrically isolated and would allow connection to circuit common (GND / VSS)?

  • 0
    Guru 192875 points

    Hi Gerald,

    We guys were stuck at this point too way back. After researching a lot for F28335, also getting inputs from both TI and non-TI experts we connected it to the ground. Our control card is functionally stable and is very efficient.

    Regards,

    Gautam