Datasheet > TPA3120D2_07

TPA3120D2_07

更新时间： 2024-11-17 03:58:47

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德州仪器 - TI		放大器功率放大器
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描述
25-W STEREO CLASS-D AUDIO POWER AMPLIFIER

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TPA3120D2_07 数据手册

TPA3120D2

www.ti.com

SLOS507C–MARCH 2007–REVISED MAY 2007

25-W STEREO CLASS-D AUDIO POWER AMPLIFIER

FEATURES

DESCRIPTION

•

25-W/ch into a 4-Ω Load from a 27-V Supply

20-W/ch into a 4-Ω Load from a 24-V Supply

Operates from 10 V to 30 V

The TPA3120D2 is a 25-W (per channel) efficient,

Class-D audio power amplifier for driving stereo

speakers in a single-ended configuration or a mono

bridge-tied speaker. The TPA3120D2 can drive

stereo speakers as low as 4 Ω. The efficiency of the

TPA3120D2 eliminates the need for an external heat

sink when playing music.

Efficient Class-D Operation Eliminates Need

for Heat Sinks

•

Four Selectable, Fixed Gain Settings

Internal Oscillator (No External Components

Required)

The gain of the amplifier is controlled by two gain

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

36 dB.

•

Single Ended Analog Inputs

The patented start-up and shut-down sequences

minimize "pop" noise in the speakers without

additional circuitry.

Thermal and Short-Circuit Protection with

Auto Recovery

•

Space-Saving Surface Mount 24-pin TSSOP

Package

APPLICATIONS

•

Televisions

SIMPLIFIED APPLICATION CIRCUIT

TPA3120D2

1 mF

0.22 mF

Left Channel

LIN

RIN

BSR

ROUT

PGNDR

PGNDL

LOUT

22 mH 470 mF

Right Channel

1 mF

0.68 mF

1 mF

BYPASS

AGND

22 mH

470 mF

BSL

0.22 mF

10 V to 30 V

PVCCL

PVCCR

AVCC

10 V to 30 V

VCLAMP

Shutdown

Control

1 mF

MUTE

Mute Control

GAIN0

GAIN1

4-Step Gain

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.

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...27

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