tpa3125d2 power requirements

Prodigy 70 points

michele fregoni

Replies: 4

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How many Ampere it will draw ?

• TPA3125D2

Prodigy 70 points

michele fregoni

• Aug 2, 2016 2:55 PM
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4 Replies

• Expert 5000 points

  

  Peter Cao

  

  • Aug 3, 2016 9:12 AM

  Hi, Michele

           TPA3125D2 is 10w/ch (SE) into an 8ohm load from 24V supply and 20w (BTL) into and 8ohm load from a 24V supply.

           The output power mentioned in above sentence are rms power.

           The over current protection trigger point is about 5.7A

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• Prodigy 70 points

  

  michele fregoni

  

  • Aug 3, 2016 9:18 AM

  In reply to Peter Cao:

  Thanks for your quick reply, but my question is about power supply. I know that is 24V but how many Amperes? I need this info cause I need a power supply for both TPA and preamp.

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• Expert 5000 points

  

  Peter Cao

  

  • Aug 3, 2016 9:30 AM

  In reply to michele fregoni:

  It depends on your application case? How much power are you need? What is you load impedance?

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• Prodigy 70 points

  

  michele fregoni

  

  • Aug 3, 2016 9:42 AM

  In reply to Peter Cao:

  8ohm btl. Simple 2 stage fet preamp @ 15V for guitar use. Now I use a 24V 3A switching power supply and it's OK, but if I want to insert a reverb I need 100ma to proper operation of reverb. So I don't know if my 3A power supply (less 100ma of reverb and less 20 - 30 ma of FET preamp) are ok for TPA to operate.

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