I'm working on a control system for RGB LED strips.
I have the main PWM controller (using a TLC TLC5940) board in the fab, and now that I finally know the specs for the LED strips, I'm starting work on the power board with the mosfets for changing the 5V PWM into 12V.
For reference, these are the strips I have coming: http://www.ebay.ca/itm/391288002028?ru=http://www.ebay.ca/sch/i.html?_from=R40&_sacat=0&_nkw=391288002028&_rdc=1
The seller says that strips run at 14Watts a meter on 12V, which would be 1.16 Amps a meter, also the strips are common anode, so I'll need N-Channel MOSFETS.
I'm looking at running 2-3 meters of these strips off of one "channel" on my board, so I'll need a MOSFET that can switch at least 12V 4.5A (3.5 + 30% safety margin).
What are some affordable N-Channel 12v MOSFETS that can switch at least 4.5 amps (ideally more)? I say "affordable" because I'll need 15 of them (3(r, g and b for each strip)*5), and I'm trying to keep costs fairly low.
Also if you can point me to some good sellers for getting recommended MOSFETs quickly, I'd appreciate it! I have until March 25th to finished this, but I'm going to be out of town from the 17th-24th so I need to finish it before then, and can't afford to wait weeks to get the parts from Ebay
EDIT: They can either be SMD or Thru-hole, the smaller the better
EDIT2: I've found the TIP120 as being used for driving RGB LED strips in some circuits, it has a maximum voltage of 60v and a current rating of 5v. Their a good price, but can anyone confirm if there is anything better?
I have the main PWM controller (using a TLC TLC5940) board in the fab, and now that I finally know the specs for the LED strips, I'm starting work on the power board with the mosfets for changing the 5V PWM into 12V.
For reference, these are the strips I have coming: http://www.ebay.ca/itm/391288002028?ru=http://www.ebay.ca/sch/i.html?_from=R40&_sacat=0&_nkw=391288002028&_rdc=1
The seller says that strips run at 14Watts a meter on 12V, which would be 1.16 Amps a meter, also the strips are common anode, so I'll need N-Channel MOSFETS.
I'm looking at running 2-3 meters of these strips off of one "channel" on my board, so I'll need a MOSFET that can switch at least 12V 4.5A (3.5 + 30% safety margin).
What are some affordable N-Channel 12v MOSFETS that can switch at least 4.5 amps (ideally more)? I say "affordable" because I'll need 15 of them (3(r, g and b for each strip)*5), and I'm trying to keep costs fairly low.
Also if you can point me to some good sellers for getting recommended MOSFETs quickly, I'd appreciate it! I have until March 25th to finished this, but I'm going to be out of town from the 17th-24th so I need to finish it before then, and can't afford to wait weeks to get the parts from Ebay
EDIT: They can either be SMD or Thru-hole, the smaller the better
EDIT2: I've found the TIP120 as being used for driving RGB LED strips in some circuits, it has a maximum voltage of 60v and a current rating of 5v. Their a good price, but can anyone confirm if there is anything better?
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