TLC5947 - to MOSFET or not to MOSFET

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johnmorgan302
 
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TLC5947 - to MOSFET or not to MOSFET

Post by johnmorgan302 »

I've got 4 x 5m RGB LED strips (analog SMD5050) which I intend to break up into 8 sections. I'm using a Thermaltake 430w TR-2 power supply to supply the 12v needed for the job. My first cut was to use MOSFET's to isolate the Arduino from the high voltage. That works just fine. I added the TLC5947 so I can split the strips up and control them individually. I've got regular 10mm RGB LED's plugged into the breadboard, and I know that the TLC5947 is able to control the RGB LED's without incident. However, it doesn't seem to be driving the MOSFET's... Is there a compatibility issue between the TLC5947 and MOSFET's?

Also, reading the tutorial, it looked like it would be permissable to remove the Arduino power and plug the 12v directly into the TLC5947 (thereby eliminating the need for the MOSFET's all together. Is that correct, or am I going nuts?

Thanks

John

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Re: TLC5947 - to MOSFET or not to MOSFET

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