WEBENCH® Tools: LME49810

Hey Mike, 

I cannot find LME49810 on ti.com what device does it belong to?

All the best, 

Carolina 

HI, Caroline  you are right I also cannot find LME49810 on TI.com.  but I have attached datasheet and model I have downloaded before. 

Regards.

Mike ChiangLME49810.pdfsnam112.zip

Hey Mike, 

I believe this device has been discontinued.

Perhaps, I help you find another device that meets your needs. 

Can you elaborate on your system requirements?

All the best,
Carolina 

My goal is to base on LME39810 to design a scalable Audio amplifier from 75 to 400watts.  But first I have to be able to model and simulate with LME49810 to explore circuit configuration.  On further search, I have found that TI has discontinued this device.  Perhaps you can recommend a replacement.  I appreciate your help.  

regards. mike c

Hey Mike, 

Sure I can help you find a part!

When you say scalable, do you mean analog input? We offer both analog or digital input devices. 

Expected output power is 75 - 400 Watts. What is your speaker load (ohms)? What is your system power supply?

All the best, 
Carolina

This will be a full analog design.

By scalable I mean to vary the number of output devices in parallel to achieve different output power.  Of course, the power supply and drivers of the output devices will have to be scalable also.  Thus the need to simulate.  The speaker impedance would be 8 or 4 ohms.  

Thanks, mike c

Hey Mike, 

Do you have size restrictions in your design? Or is there space for a heatsink?

All the best, 
Carolina

There is no physical limitation, with in reason.  Mike C

Hello Mike, 

I recommend you use TPA3221.
To get all the way to 400W, you would need to use 2 of these. See the Multi-Device Configuration for more details. 

If you do not believe that is enough power I recommend the higher output power version TPA3255. 

Unfortunately, these do not have simulation files, the eval would have to be done through EVMs. 

All the best,
Carolina

thanks for your effort.  TPA3255 is a class D switching amp, not what I am after.  I will continue to look for other solutions.  you can close this issue,  thanks again.  mike c.