Datasheet > TPA721_07

TPA721_07

更新时间： 2024-09-21 03:58:47

品牌	Logo	应用领域
德州仪器 - TI		放大器功率放大器低压音频
页数	文件大小	规格书
24页	689K
描述
700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER

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TPA721_07 数据手册

TPA721

www.ti.com

SLOS231E–NOVEMBER 1998–REVISED JUNE 2004

700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER

FEATURES

DESCRIPTION

•

Fully Specified for 3.3-V and 5-V Operation

Wide Power Supply Compatibility 2.5 V – 5.5 V

Output Power for R_L= 8 Ω

The TPA721 is a bridge-tied load (BTL) audio power

amplifier developed especially for low-voltage appli-

cations where internal speakers are required.

Operating with a 3.3-V supply, the TPA721 can

deliver 250-mW of continuous power into a BTL 8-Ω

load at less than 0.6% THD+N throughout voice band

frequencies. Although this device is characterized out

to 20 kHz, its operation is optimized for narrower

band applications such as wireless communications.

The BTL configuration eliminates the need for exter-

nal coupling capacitors on the output in most appli-

cations, which is particularly important for small

battery-powered equipment. This device features a

shutdown mode for power-sensitive applications with

a supply current of 7 µA during shutdown. The

TPA721 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%.

– 700 mW at V_DD= 5 V, BTL

– 250 mW at V_DD= 3.3 V, BTL

Integrated Depop Circuitry

Thermal and Short-Circuit Protection

Surface-Mount Packaging

•

– SOIC

– PowerPAD™ MSOP

D OR DGN PACKAGE

(TOP VIEW)

SHUTDOWN

BYPASS

IN+

V –

GND

IN–

V +

V /2

Audio

Input

IN–

IN+

V +

–

BYPASS

–

700 mW

V –

GND

SHUTDOWN

Bias

Control

From System Control

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...24

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