What does PAD mean in a circuit schematic?

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What does PAD mean in a circuit schematic? [Copy link]

There is no PAD pin in the chip manual. What is the purpose of adding this PAD and why should it be added? ? ? ?

chunyang

Read the device manual carefully, there must be an explanation. The PAD here generally refers to a large metal area at the bottom of the chip packaged in QFN or other packages, which is used for heat dissipation, electromagnetic shielding, etc. and generally needs to be grounded.

wsmysyn

The heat sink at the bottom of the chip,,,,

qwqwqw2088

There is a picture in the manual, an area at the bottom

hjl2832

This is what we usually call the thermal pad, which is available on general power chips.