TPA3123D2EVM: Class D, 25W Stereo, 4 Ω

Summary

The TPA3123D2 evaluation module consists of a single 25-W, class-D, stereo audio power amplifier complete with a small number of external components mounted on a circuit board that are used to directly drive speakers with an external analog audio source as the input.

The efficiency of the TPA3123D2 eliminates the need for an external heat sink when playing music.

The gain of the amplifier is controlled by two gain select pins. The gain selections are 20, 26, 32, 36 dB.

Specifications

Manufacturer	Texas Instruments
Category	Audio Amplifiers
Eval Board Part Number	TPA3123D2EVM-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Amplifier Type	Class D
Number of Outputs	Stereo
Output Power (RMS) @ Load	25 W x 2 @ 4 Ω
Voltage In	10 ~ 30 V
THD+N (1kHz) @ Conditions	< 10% @ 24 W (4 Ω, 27V)
Features	Digital Gain Mute Short Circuit Protection Shutdown, Enable, Standby Thermal Protection Turn On/Off Depop
Efficiency @ Conditions	>80%, 24V in, 4 Ω @ 4 ~ 20 W
Standby Current [Typical]	390 µA
Quiescent Current [Typical]	23 mA
Component Count + Extras	27 + 14 38 + 14
Application / Target Market	LCD TV / Monitor
Design Author	Texas Instruments
Main I.C. Base Part	TPA3123D2
Quiescent Current [Maximum]	37 mA
Standby Current [Maximum]	1 mA
Date Created By Author
Date Added To Library	2011-03