TDA7265 Current Rating

Sh00pus · 7th February 2013, 01:50 AM

I had posted before about a 15W Chip amp, but I'm thinking about getting the TDA7265 with a bit more power.

Does anyone know how much current this chip will draw at around +/- 20V? I see the output peak current is 4A on the data sheet, is that also how much it would draw? Would a 2A transformer work?

nigelwright7557 · 7th February 2013, 01:56 AM

I would guesstimate about a 200VA transformer.

Class AB, 100w+100w + 60w (heat) + 60 watt (heat)

Sh00pus · 7th February 2013, 02:04 AM

I thought it was a 20W amplifier. So wouldn't it be 20W + 20W + 23W(heat)+23W(heat)?

nigelwright7557 · 7th February 2013, 02:54 PM

The spec says it is 100w + 100w.
If you are going to make it 20w then you don't need such a big transformer.

7th February 2013, 01:50 AM	#1
Sh00pus diyAudio Member Join Date: Mar 2011	TDA7265 Current Rating I had posted before about a 15W Chip amp, but I'm thinking about getting the TDA7265 with a bit more power. Does anyone know how much current this chip will draw at around +/- 20V? I see the output peak current is 4A on the data sheet, is that also how much it would draw? Would a 2A transformer work?

7th February 2013, 01:56 AM	#2
nigelwright7557 diyAudio Member Join Date: Apr 2008 Location: Carlisle, England	I would guesstimate about a 200VA transformer. Class AB, 100w+100w + 60w (heat) + 60 watt (heat) __________________ http://www.murtonpikesystems.co.uk PCBCAD50 pcb design software.

7th February 2013, 02:54 PM	#4
nigelwright7557 diyAudio Member Join Date: Apr 2008 Location: Carlisle, England	The spec says it is 100w + 100w. If you are going to make it 20w then you don't need such a big transformer. __________________ http://www.murtonpikesystems.co.uk PCBCAD50 pcb design software.

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7th February 2013, 02:04 AM	#3
Sh00pus diyAudio Member Join Date: Mar 2011	I thought it was a 20W amplifier. So wouldn't it be 20W + 20W + 23W(heat)+23W(heat)?

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