• TI Thinks Resolved

TINA/Spice/TPA3255: TPA3255 Spice Model

Prodigy 50 points

Replies: 4

Views: 70

Part Number: TPA3255

Tool/software: TINA-TI or Spice Models


I am wanting to use the TPA3255 in a new design at my company that produce high power low frequency output Antennas for the security industry.
These antennas then power certain wireless devices that can then talk back to a system. Unfortunately I am not allowed to say more than this...

I want to use this class D amplifier over the traditional Class A/B design, however the Coil impedance isn't that of a standard Speaker.
I have been searching for a spice model so I can play around with values to check how to optimize the LC filter part.
I did look at the application note but it only mentions standard speakers and not arbitrary loads...
The out put is a 200Hz  Sinusoidal wave with peak current of 20A  and the impedance of the coil are the following:

Inductance (measured at frequency 1000 Hz)                                     1.5 mH
Resistance (DC measurement)                        0.5 Ohm

Kind Regards