External pad connection

4 replies
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Where does the external pad get connected on the ST25R3918-AQWT package? Ground?

ST25 NFC - RFID Readers – ST25R391x series

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Brian TIDALBest answer

ST Technical Moderator

Hi Ted,

Thermal Pad must be grounded for ST25R3916/16B/17/17B/18/19/19B/20/20B.

Rgds

BT

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Brian TIDAL

ST Technical Moderator

Hi,

which pin number/pin name do you refer to?

Rgds

BT

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T

TedAAuthor

Associate II

Hi Brian,

Thanks for the quick response. The pin number is 33, which is named Thermal Pad. It is a 3.5mm x 3.5mm square pad on the bottom surface of the chip.

Ted

Brian TIDALBest answer

ST Technical Moderator

Hi Ted,

Thermal Pad must be grounded for ST25R3916/16B/17/17B/18/19/19B/20/20B.

Rgds

BT

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

T

TedAAuthor

Associate II

Thanks so much, Brian.

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