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CLo.3
Visitor II
August 17, 2021
Solved

L6227Q NC pins 10,18, 32 connected to ground?

  • August 17, 2021
  • 1 reply
  • 623 views

Note under Figure 18 in datasheet mentions "To reduce the IC thermal resistance, therefore improve the dissipation path, the NC pins can be connected to GND" does this include pins 10, 18, and 32?

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Best answer by Enrico Poli

Hello @CLo.3​ ,

Yes, all NC pins can be connected to the ground (i.e. to the exposed pad) to improve the thermal performance of the device.

Probably the contribution of pins 10, 18 and 32 alone is not significant, but without other constrains it is recommended to connect them to the exposed pad as well.

Kind Regards

Enrico

1 reply

Enrico Poli
Enrico PoliBest answer
ST Employee
August 20, 2021

Hello @CLo.3​ ,

Yes, all NC pins can be connected to the ground (i.e. to the exposed pad) to improve the thermal performance of the device.

Probably the contribution of pins 10, 18 and 32 alone is not significant, but without other constrains it is recommended to connect them to the exposed pad as well.

Kind Regards

Enrico