Part Number: TPA3250D2EVM
1. From the datasheet's output power vs THD graph, it seems this chip in BTL mode, provides least noise for output of around 7w to 40w for 8 ohm load.
Now how do we run this EVM board in BTL mode, to output in the range of " 7w - 40w " per channel of stereo ? Do we need to limit the supply voltage from 15v to 24v? or is there any other way for maintaining low noise output power?
2. Apart from heat sink how TPA3250 differ from TPA3245? Both chip's output powers are very close to each other.
thanks and regards
In reply to Robert Clifton56:
Thanks for the reply.
Could you please clarify the relationship between output power and supply voltage. From the data sheet graphs it seems we need to maintain supply voltage under 24v to get output audio power under 40w.
Would it be possible to get the graphs of output power vs THD noise for 8ohm loads when used in SE mode is. 4.0 mode. In data sheet only lower impedance load's graphs were provided.
Regarding TPA3250 vs TPA3245 if we are powering it up with a power supply of 19v or 24v to keep the output audio power to under 40w , are there any other difference between them in terms of performance / scale / features ?
Thanks and regards
In reply to sarath azad:
Brian Burk High Power Audio Amplifiers Dallas, TX USA
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