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PSoC PIRMOTION, 3V supply? | Cypress Semiconductor

PSoC PIRMOTION, 3V supply?

Summary: 3 Replies, Latest post by MagicPhoton on 12 Oct 2013 03:10 PM PDT
Verified Answers: 0
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MagicPhoton's picture
4 posts


I'm using the CY3236A schematic to measure PIR sensor. Would be possible make working the PIR325 with 3 V supply? Could anyone tell me any advice of how to achieve this?


Nordin Aranzabal


user_1377889's picture
9249 posts

Following the datasheet of the PIR325 the powwer supply is 2.5V to 15V, so it should run at 3.3V.


user_14586677's picture
7646 posts

The board, as you know, is 5V only out of the regulator. But looking

at all the external circuits on the board looks like 3V would be OK, however

you would have to worst case design for dynamic range, headroom,

etc,. at 3 V to see if 3V operation feasable, or change circuit scaling and

approach to meet 3V.


Clearly PSOC can run at 3V as well, reduced clock rates for some devices.


Regards, Dana.

MagicPhoton's picture
4 posts

 Thanks for the fast replies, is working fine with 3 V.


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