Can 5v trinket drive SSR?

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Cmpenney
 
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Can 5v trinket drive SSR?

Post by Cmpenney »

Is a 5 V trinket capable of sourcing enough current to drive this SSR?

http://www.amazon.com/gp/product/B00HUB ... UL9P0ZZM9V

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adafruit_support_mike
 
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Re: Can 5v trinket drive SSR?

Post by adafruit_support_mike »

Can't tell without seeing a datasheet. The product page says it can accept 3v to 28v input and handle 40A of controlled AC, but doesn't say how much input current it needs.

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Cmpenney
 
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Re: Can 5v trinket drive SSR?

Post by Cmpenney »

Hopefully a spec sheet is included with it when it arrives

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adafruit_support_bill
 
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Re: Can 5v trinket drive SSR?

Post by adafruit_support_bill »

According to the sheet, it takes input signals of 3v-32v DC with an ON threshold of 2.4v. It requires 7.5mA with a 12v input. Most likely less at 5v..

http://akizukidenshi.com/download/ds/fo ... ek_ssr.pdf

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Cmpenney
 
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Re: Can 5v trinket drive SSR?

Post by Cmpenney »

If I recall the trinket can handle 150 mA so I should be fine. Correct?

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Re: Can 5v trinket drive SSR?

Post by adafruit_support_bill »

Per-pin, you should try to keep it under 20mA. But you are probably still OK

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cbxbiker61
 
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Re: Can 5v trinket drive SSR?

Post by cbxbiker61 »

Just wanted to add that I've driven 4 of those SSRs directly from a Mega256 board, so all is good.

In a later rev of the project, I swapped out the mega board with an esp8266, which required me to use transistors to pump up the current driving the SSRs.

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