TPA3123D2PWP

Name: TPA3123D2PWP
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

Audio Amplifiers 25W St Class-D Aud Pwr Amp

6,028 Effective Inventory

TPA3123D2PWP

Effective Inventory6,028

Audio Amplifiers 25W St Class-D Aud Pwr Amp

Manufacturer Part # : TPA3123D2PWP
Package/Case: HTSSOP-24
Brand: Texas Instruments
Product Categories : Audio Amplifiers
Series : TPA3123

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TPA3123D2PWP DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$10.222	$10.22
10	$9.013	$90.13
30	$8.276	$248.28
100	$7.660	$766.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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TPA3123D2PWP Details

The TPA3123D2PWP is a stereo Class-D audio amplifier from Texas Instruments, designed for high-quality audio reproduction in various applications. This amplifier offers high efficiency and low distortion, delivering powerful and clear sound output. It features built-in protection circuits and operates from a single power supply, making it easy to integrate into audio systems.

Pinout

1 (PVCC): Positive Power Supply
2 (GND): Ground
3 (SHUTDOWN/LIMITER): Shutdown and Limiter Control
4 (PWMOUT2): PWM Output for Channel 2
5 (PWMOUT1): PWM Output for Channel 1
6 (AMP GND): Amplifier Ground
7 (VCOM): Amplifier Output Common Mode Voltage
8 (VDD): Positive Power Supply
9 (AIN1/NORMAL/LIMITER): Input for Channel 1, Normal Mode, and Limiter Control
10 (AIN2/NORMAL/LIMITER): Input for Channel 2, Normal Mode, and Limiter Control
11 (AIN3/NORMAL): Input for Channel 3 in Normal Mode
12 (MODE): Mode Selection
13 (INMODE): Differential Input Mode Selection
14 (VBAT): Power Supply for the Analog Section
15 (VCOM): Amplifier Output Common Mode Voltage
16 (OUT1P): Positive Output for Channel 1
17 (OUT1N): Negative Output for Channel 1
18 (OUT2N): Negative Output for Channel 2
19 (OUT2P): Positive Output for Channel 2
20 (PVCC): Positive Power Supply

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

High Efficiency: Provides high efficiency for reduced power consumption and extended battery life.
Low Distortion: Delivers low distortion audio output for clear and accurate sound reproduction.
Built-in Protection: Features built-in protection circuits for overvoltage, overcurrent, and thermal protection.
Single Supply Operation: Operates from a single power supply, simplifying system design and integration.
Wide Supply Voltage Range: Accommodates a wide range of power supply voltages for versatile applications.

Application

Audio Systems: Designed for audio amplification in audio systems, including speakers and headphones.
Portable Devices: Suitable for portable devices such as portable speakers, smartphones, and tablets.
Home Entertainment: Used in home entertainment systems, including home theaters and soundbars.

Where to Use

The TPA3123D2PWP is suitable for applications that require high-quality audio amplification in various audio systems. It can be used in portable devices, home entertainment systems, and other audio-related applications.

How to Use

Connect the TPA3123D2PWP to your audio system by wiring the appropriate power supply connections to the PVCC and GND pins. Use the PWMOUT1 and PWMOUT2 pins for the audio output. Utilize the input pins for channel selection and input signals. Follow the mode and differential input mode selection based on your application requirements. Refer to the datasheet for detailed usage instructions and configuration options.

Application Circuit

The application circuit diagram for the TPA3123D2PWP demonstrates how to integrate the amplifier into an audio system. It includes connections for power supply, input signals, and the audio output, ensuring proper operation and optimal audio performance.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

TPA3116D2: A similar stereo Class-D audio amplifier from Texas Instruments with comparable features and performance.
IR4421: An alternative Class-D audio amplifier IC from Infineon Technologies offering similar functionality.

Complementary

The TPA3123D2PWP can be complemented by the TPS7A4700, a low-noise voltage regulator from Texas Instruments, which helps provide a clean and stable power supply for improved audio performance.

When selecting complementary components, ensure compatibility and alignment with your specific audio system requirements.

Frequently Asked Questions

Q: What is the efficiency of the TPA3123D2PWP?

A: The TPA3123D2PWP offers high efficiency, which can vary depending on the operating conditions and load impedance. Refer to the datasheet for detailed efficiency information under various conditions.

Q: Does the TPA3123D2PWP require external protection circuits?

A: No, the TPA3123D2PWP features built-in protection circuits for overvoltage, overcurrent, and thermal protection. However, follow the recommended operating conditions and limits provided in the datasheet to ensure reliable performance and protection.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Audio input type	Analog Input	Architecture	Class-D
Speaker channels (max)	Stereo	Rating	Catalog
Power stage supply (max) (V)	30	Power stage supply (min) (V)	10
Load (min) (Ω)	4	Output power (W)	25
SNR (dB)	99	THD + N at 1 kHz (%)	0.08
Iq (typ) (mA)	23	Control interface	Hardware
Closed/open loop	Closed	Analog supply (min) (V)	10
Analog supply voltage (max) (V)	30	PSRR (dB)	60
Operating temperature range (°C)	-40 to 85

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification TPA3123D2PWP PDF Download

FAQs

What is TPA3123D2PWP?

The TPA3123D2PWP is a 25-Watt stereo Class-D audio amplifier integrated circuit designed by Texas Instruments. It is suitable for audio applications such as portable speakers, home entertainment systems, and automotive audio systems.

How Does TPA3123D2PWP Work?

The TPA3123D2PWP operates as a Class-D audio amplifier, utilizing pulse-width modulation (PWM) to deliver high-efficiency power amplification. It accepts audio input signals and efficiently drives connected speakers, providing high-quality audio output with minimal power dissipation.

How Many Pins does TPA3123D2PWP have and What are the Functions of the Pinout Configuration?

The TPA3123D2PWP is housed in a 20-pin HTSSOP (PowerPAD™) package. The pinout configuration includes:

PVDD: Power supply pin for the power stage.
AVDD: Analog supply voltage pin.
PVSS: Power ground pin for the power stage.
AVSS: Analog ground pin.
SD, MUTE: Shutdown and mute control pins.
INP, INN: Differential audio inputs.
PGA: Programmable gain selection pin.
STBY, PVDD: Standby mode control and power supply pins.
OUT1, OUT2: Speaker output pins.

What are the Pros and Cons of TPA3123D2PWP?

Pros:

High Efficiency: Class-D architecture provides high efficiency, reducing heat dissipation and power consumption.
Powerful Output: Delivers up to 25 watts per channel, suitable for various audio applications.
Thermal and Short-Circuit Protection: Includes built-in protection features for reliable operation.
Integrated Solution: All necessary functions for an audio amplifier are integrated in a single chip, simplifying system design.
Low Distortion: Provides high-quality audio output with low distortion.

Cons:

External Components: May require external filters and other components for optimal performance in specific applications.
Heat Dissipation: Despite high efficiency, some heat dissipation may still occur during operation.
Complexity: Class-D amplifiers may require careful consideration of layout and electromagnetic interference (EMI) issues.

Are There Any Equivalents/Alternatives to TPA3123D2PWP for Recommendation?

The TPA3116D2 from Texas Instruments is a similar Class-D audio amplifier with additional features.
Alternatives to the TPA3123D2PWP include the IRS20957 from Infineon and the STA333BW from STMicroelectronics.