TPA3121D2

更新时间： 2024-11-17 03:53:27

品牌	Logo	应用领域
德州仪器 - TI		放大器功率放大器
页数	文件大小	规格书
29页	876K
描述
15-W STEREO CLASS-D AUDIO POWER AMPLIFIER

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数据手册
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TPA3121D2 数据手册

TPA3121D2

www.ti.com........................................................................................................................................................................................................ SLOS537–MAY 2008

15-W STEREO CLASS-D AUDIO POWER AMPLIFIER

FEATURES

APPLICATIONS

•

Flat Panel Display TVs

•

10-W/Ch Stereo Into an 8-Ω Load From a 24-V

Supply

DLP^®TVs

CRT TVs

Powered Speakers

•

15-W/Ch Stereo Into a 4-Ω Load from a 22-V

Supply

30-W/Ch Mono Into an 8-Ω Load from a 22-V

Supply

DESCRIPTION

•

Operates From 10 V to 26 V

The TPA3121D2 is a 15-W (per channel), efficient,

class-D audio power amplifier for driving stereo

speakers in a single-ended configuration or a mono

Can Run From +24 V LCD Backlight Supply

Efficient Class-D Operation Eliminates Need

for Heat Sinks

speaker in

a bridge-tied-load configuration. The

TPA3121D2 can drive stereo speakers as low as 4 Ω.

The efficiency of the TPA3121D2 eliminates the need

for an external heat sink when playing music.

•

Four Selectable, Fixed-Gain Settings

Internal Oscillator to Set Class D Frequency

(No External Components Required)

The gain of the amplifier is controlled by two gain

select pins. The gain selections are 20, 26, 32, and

36 dB.

•

Single-Ended Analog Inputs

Thermal and Short-Circuit Protection With

Auto Recovery

The patented start-up and shutdown sequences

minimize pop noise in the speakers without additional

circuitry.

•

Space-Saving Surface Mount 24-Pin TSSOP

Package

Advanced Power-Off Pop Reduction

SIMPLIFIED APPLICATION CIRCUIT

TPA3121D2

1 mF

0.22 mF

Left Channel

LIN

BSR

33 mH

470 mF

Right Channel

RIN

ROUT

1 mF

0.22 mF

PGNDR

PGNDL

LOUT

BSL

0.22 mF

33 mH

1 mF

BYPASS

AGND

470 mF

0.22 mF

PVCCL

PVCCR

10 V to 26 V

AVCC

VCLAMP

Shutdown Control

Mute Control

1 mF

MUTE

GAIN0

GAIN1

4-Step Gain Control

S0267-01

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.

DLP is a registered trademark of Texas Instruments.

System Two, Audio Precision are trademarks of Audio Precision, Inc.

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...29

中文翻译

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TPA3121D2 替代型号

型号	品牌	替代类型	描述	数据表
TPA3124D2	TI	功能相似	15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3123D2	TI	功能相似	25-W STEREO CLASS-D AUDIO POWER AMPLIFIER

与TPA3121D2相关器件

型号	品牌	获取价格	描述	数据表
TPA3121D2_1	TI	获取价格	15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3121D2_16	TI	获取价格	15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3121D2PWP	TI	获取价格	15-W stereo, 30-W mono, 10- to 26-V supply, analog input Class-D audio amplifier w/ SE out
TPA3121D2PWPG4	TI	获取价格	15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3121D2PWPR	TI	获取价格	15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3122D2	TI	获取价格	15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3122D2_14	TI	获取价格	15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3122D2N	TI	获取价格	15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3123D2	TI	获取价格	25-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3123D2PWP	TI	获取价格	25-W STEREO CLASS-D AUDIO POWER AMPLIFIER

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