TPA321 Datasheet - Texas Instruments

TPA321 350-mW MONO AUDIO POWER AMPLIFIER

The TPA321 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA321 can deliver 250 mW of continuous power into a BTL 8-Ω load at less than 1% THD+N throughout voice band freque.

TPA321 www.ti.com SLOS312C JUNE 2000 REVISED JUNE 2004 350-mW MONO AUDIO POWER AMPLIFIER WITH DIFFERENTIAL INPUTS Fully Specified for 3.3-V and 5-V Operation Wide Power Supply Compatibility 2.5 V 5.5 V Output Power for RL = 8 Ω 350 mW at VDD = 5 V 250 mW at VDD = 3.3 V Ultralow Supply Current in Shutdown Mode . . . 0.15 µA Thermal and Short-Circuit Protection Surface-Mount Packaging .

TPA321 Features

* a shutdown mode for power-sensitive applications with a quiescent current of 0.15 µA during shutdown. The TPA321 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD™ MSOP, which reduces board space by 50% and height by 40%. Audio Input RI CI RF CB 0.1 µF From Sys

TPA321 Datasheet (1.18 MB)