TPA3112D1

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Class-D-Audioverstärker mit 25 W Mono, 8 bis 26 V Versorgungsspannung und Analogeingang, filterfrei,

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Datenblatt

document-pdfAcrobat TPA3112D1 25-W Filter-Free Mono Class-D Audio Power Amplifier With SpeakerGuard™ datasheet (Rev. D) (Englisch) PDF | HTML

TPA3112D1

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Audio input type

Analog Input

Architecture

Class-D

Speaker channels (max)

Mono

Control interface

Hardware

Output power (W)

25

Power stage supply (max) (V)

26

Power stage supply (min) (V)

8

THD + N at 1 kHz (%)

0.05

Load (min) (Ω)

4

Analog supply voltage (min) (V)

8

Analog supply voltage (max) (V)

26

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Audio input type

Analog Input

Architecture

Class-D

Speaker channels (max)

Mono

Control interface

Hardware

Output power (W)

25

Power stage supply (max) (V)

26

Power stage supply (min) (V)

8

THD + N at 1 kHz (%)

0.05

Load (min) (Ω)

4

Analog supply voltage (min) (V)

8

Analog supply voltage (max) (V)

26

Rating

Catalog

Operating temperature range (°C)

-40 to 85

HTSSOP (PWP)

28

62.08 mm² (9.7 mm × 6.4 mm)

25-W into an 8-Ω Load at < 0.1% THD+N From a 24-V Supply
20-W into an 4-Ω Load at 10% THD+N From a 12-V Supply
94% Efficient Class-D Operation into 8-Ω Load Eliminates Need for Heat Sinks
Wide Supply Voltage Range Allows Operation from 8 to 26 V
Filter-Free Operation
SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter plus DC Protection
Flow Through Pin Out Facilitates Easy Board Layout
Robust Pin-to-Pin Short Circuit Protection and Thermal Protection with Auto-Recovery Option
Excellent THD+N/ Pop Free Performance
Four Selectable, Fixed Gain Settings
Differential Inputs

25-W into an 8-Ω Load at < 0.1% THD+N From a 24-V Supply
20-W into an 4-Ω Load at 10% THD+N From a 12-V Supply
94% Efficient Class-D Operation into 8-Ω Load Eliminates Need for Heat Sinks
Wide Supply Voltage Range Allows Operation from 8 to 26 V
Filter-Free Operation
SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter plus DC Protection
Flow Through Pin Out Facilitates Easy Board Layout
Robust Pin-to-Pin Short Circuit Protection and Thermal Protection with Auto-Recovery Option
Excellent THD+N/ Pop Free Performance
Four Selectable, Fixed Gain Settings
Differential Inputs

The TPA3112D1 is a 25-W efficient, Class-D audio power amplifier for driving a bridge tied speaker. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard speaker protection system includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.

The TPA3112D1 can drive a mono speaker as low as 4Ω. The high efficiency of the TPA3112D1, > 90%, eliminates the need for an external heat sink when playing music.

The outputs are fully protected against shorts to GND, V_CC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.

The TPA3112D1 is a 25-W efficient, Class-D audio power amplifier for driving a bridge tied speaker. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard speaker protection system includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.

The TPA3112D1 can drive a mono speaker as low as 4Ω. The high efficiency of the TPA3112D1, > 90%, eliminates the need for an external heat sink when playing music.

The outputs are fully protected against shorts to GND, V_CC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	TPA3112D1 25-W Filter-Free Mono Class-D Audio Power Amplifier With SpeakerGuard™ datasheet (Rev. D)	PDF \| HTML	07.12.2016
	Anwendungshinweis	Using Thermal Calculation Tools for Analog Components (Rev. A)		30.08.2019
	Anwendungshinweis	Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)		26.08.2019
	Anwendungshinweis	AN-1849 An Audio Amplifier Power Supply Design (Rev. C)		27.06.2019
	Anwendungshinweis	AN-1737 Managing EMI in Class D Audio Applications (Rev. A)		01.05.2013

Design und Entwicklung

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Evaluierungsplatine

TPA3112D1EVM — TPA3112D1-Evaluierungsmodul

The TPA3112D1 evaluation module consists of a single 25-W, Class-D, mono audio power amplifier complete with a small number of external components mounted on a circuit board that can be used to directly drive a speaker with an external analog audio source as the input. The EVM’s default output (...)

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