TPA321DGN Datasheet

IC型號：
TPA321DGN
PDF描述：
350-mW MONO AUDIO POWER AMPLIFIER WITH DIFFERENTIAL INPUTS
文件大小：
467.79KB
PDF頁數(shù)：
24頁
芯片廠家：
TI

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TPA321

www.ti.com

SLOS312C 鈥?JUNE 2000 鈥?REVISED JUNE 2004

350-mW MONO AUDIO POWER AMPLIFIER WITH DIFFERENTIAL INPUTS

鈥?/div>

Fully Specified for 3.3-V and 5-V Operation

Wide Power Supply Compatibility

2.5 V 鈥?5.5 V

Output Power for R

= 8

鈩?/div>

鈥?350 mW at V

= 5 V

鈥?250 mW at V

= 3.3 V

Ultralow Supply Current in Shutdown

Mode . . . 0.15 碌A(chǔ)

Thermal and Short-Circuit Protection

Surface-Mount Packaging

鈥?SOIC

鈥?PowerPAD鈩?MSOP

D OR DGN PACKAGE

(TOP VIEW)

鈥?/div>

SHUTDOWN

BYPASS

IN+

IN-

GND

DESCRIPTION

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-鈩?load at less than 1% THD+N throughout voice band frequencies. Although this

device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as cellular

communications. The BTL configuration eliminates the need for external coupling capacitors on the output in

most applications, which is particularly important for small battery-powered equipment. This device features a

shutdown mode for power-sensitive applications with a quiescent current of 0.15 碌A(chǔ) during shutdown. The

TPA321 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD鈩?MSOP, which

reduces board space by 50% and height by 40%.

Audio

Input

IN -

IN+

+ 5

碌F

0.1

碌F

BYPASS

350 mW

GND

From System Control

SHUTDOWN

Bias

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.

標(biāo)準(zhǔn)包裝
80
類別
集成電路 (IC)
家庭
線性 - 音頻放大器
系列
-
類型
AB 類
輸出類型
1-通道（單聲道）
在某負(fù)載時最大輸出功率 x 通道數(shù)量
700mW x 1 @ 8 歐姆
電源電壓
2.5 V ~ 5.5 V
特點(diǎn)
差分輸入，短路保護(hù)和熱保護(hù)，關(guān)機(jī)
安裝類型
表面貼裝
供應(yīng)商設(shè)備封裝
8-MSOP-PowerPad
封裝/外殼
8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤
包裝
管件
配用
296-12306-ND - EVAL MOD FOR TPA321
其它名稱
296-12563-5

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