TPA3112D1

ACTIVO

Amplificador de audio mono de Clase D, entrada analógica, 25 W y alimentación de 8 V a 26 V, sin fil

Detalles del producto

Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 8 Load (min) (Ω) 4 Output power (W) 25 SNR (dB) 102 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 10 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 8 Analog supply voltage (max) (V) 26 PSRR (dB) 70 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 8 Load (min) (Ω) 4 Output power (W) 25 SNR (dB) 102 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 10 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 8 Analog supply voltage (max) (V) 26 PSRR (dB) 70 Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 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, VCC, 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, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPA3112D1 25-W Filter-Free Mono Class-D Audio Power Amplifier With SpeakerGuard™ datasheet (Rev. D) PDF | HTML 07 dic 2016
Application note Using Thermal Calculation Tools for Analog Components (Rev. A) 30 ago 2019
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 ago 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 jun 2019
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 may 2013
EVM User's guide TPA3112D1 Audio Amplifier Evaluation Module User's Guide (Rev. A) 08 jul 2010

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPA3112D1EVM — Módulo de evaluación TPA3112D1

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 (...)

Guía del usuario: PDF
Modelo de simulación

TPA3112D1 TINA-TI Reference Design

SLAM056.TSC (29 KB) - TINA-TI Reference Design
Modelo de simulación

TPA3112D1 TINA-TI Spice Model

SLAM057.ZIP (21 KB) - TINA-TI Spice Model
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 28 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
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  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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