STEVAL-CCA029V1: 5W x 2 @ 8Ω, 5 ~ 14V in, Class D

Summary

The STEVAL-CCA029V1 is a demonstration board designed for the TDA7491LP dual BTL class-D audio amplifier. This application note provides the board specifications and a quick-start list for stand-alone operation. Also included are the schematic, printed circuit board layout and bill of material.

Due to its high efficiency, the device assembled in the PSSO36 (slug-down) package is capable of dissipating heat without any heatsink. Jumpers on the board allow the configuration of the amplifier in order to verify all the features as single-ended or differential inputs, fixed gain settings. Microswitches are also provided to enable the standby and mute functions.

Specifications

Manufacturer	STMicroelectronics
Category	Audio Amplifiers
Eval Board Part Number	497-13512-ND
Eval Board Supplier	STMicroelectronics
Eval Board	Board not Stocked
Amplifier Type	Class D
Number of Outputs	Stereo
Output Power (RMS) @ Load	5 W x 2 @ 8 Ω
Voltage In	5 ~ 14 V
THD+N (1kHz) @ Conditions	< 0.1% @ 1 W (8 Ω, 9V)
Features	Differential Inputs Digital Gain Filterless Output Short Circuit Protection Shutdown, Enable, Standby Synchronizable Thermal Protection Turn On/Off Depop
Efficiency @ Conditions	>80%, 1 ~ 5 W @ 4 Ω (6.6 V) >76%, 1 ~ 5 W @ 8 Ω (9 V)
Standby Current [Typical]	- Not Given
Quiescent Current [Typical]	26 mA
Component Count + Extras	47 + 14
Application / Target Market	LCD TV / Monitor
Design Author	STMicroelectronics
Main I.C. Base Part	TDA7491LP
Quiescent Current [Maximum]	35 mA
Standby Current [Maximum]	10 µA
Date Created By Author	2012-06
Date Added To Library	2013-06