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Chip Amps Amplifiers based on integrated circuits

Can I bridge TDA7388
Can I bridge TDA7388
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Old 9th February 2018, 09:48 AM   #1
diy1995 is offline diy1995
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Join Date: Jan 2017
Location: Slovenia
Default Can I bridge TDA7388

Hello,
Do anyone know if I can bridge TDA7388 4 x 45w amplifier?
I know that some 4 channel amplifiers are bridgable, but they have different pin layout (multiwatt15), TDA7388 has flexiwatt25.
But I can`t find a schematic for bridged mode -if possible?

http://www.st.com/content/ccc/resour...CD00179160.pdf

Here is the datasheet.

Thank you!
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Old 9th February 2018, 10:26 AM   #2
Samsara is offline Samsara  France
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Join Date: May 2011
Hello.
Almost all car audio amplifier are already bridged.
This amp is already bridged, so you cannot.
You can use TDA7560, it's more powerfull and accept 2 ohms.
Also,you can use step up converter power supply for 18V instead 12V.

Last edited by Samsara; 9th February 2018 at 10:30 AM.
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Old 9th February 2018, 11:15 AM   #3
diy1995 is offline diy1995
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Join Date: Jan 2017
Location: Slovenia
Quote:
Originally Posted by Samsara View Post
Hello.
Almost all car audio amplifier are already bridged.
This amp is already bridged, so you cannot.
You can use TDA7560, it's more powerfull and accept 2 ohms.
Also,you can use step up converter power supply for 18V instead 12V.
Ok, thank you for anwser.
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Old 9th February 2018, 11:39 AM   #4
diy1995 is offline diy1995
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Join Date: Jan 2017
Location: Slovenia
I have smps from car amplifier. It has 2 x 25A fuses so... 2 x 25A x 14V = 700W (I know that this is not 100% accurate, let`s say 500w to be safe ).
It has 27-0-27 output (so it`s positive and negative supply), this was measured with 12V input.
What are the ICs that would give me the most power on 27-0-27 supply at 4ohm load, mono?

I would like to build car subwoofer amplifier so high THD is not a problem.
I am searching myself, but didn`t find anything good sofar, because most of powerful ICs are using higher supply voltages... I`m aiming for about 200rms @4ohm is possible...?

Last edited by diy1995; 9th February 2018 at 11:43 AM.
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