TPA3111D1-Q1

ACTIVE

Automotive, 10-W, 1-ch, 8- to 26-V supply analog input Class-D audio amplifier w/ SpeakerGuard™

Top
Automotive, 10-W, 1-ch, 8- to 26-V supply analog input Class-D audio amplifier w/ SpeakerGuard™

TPA3111D1-Q1

ACTIVE

Product details

Parameters

Audio input type Analog Input Architecture Class-D Speaker channels (Max) Mono Power stage supply (Max) (V) 26 Power stage supply (Min) (V) 8 Load (Min) (ohms) 4 Output power (W) 10 SNR (dB) 102 THD + N @ 1 kHz (%) 0.05 Iq (Typ) (mA) 40 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 26 Analog supply (Max) (V) 8 PSRR (dB) 70 Operating temperature range (C) -40 to 125 open-in-new Find other Speaker amps

Package | Pins | Size

HTSSOP (PWP) 28 43 mm² 9.7 x 4.4 open-in-new Find other Speaker amps

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C2
  • 10-W into an 8-Ω Load at 10% THD+N from a 12-V Supply
  • 7-W into a 4-Ω Load at 10% THD+N from an 8-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 and Pop Free Performance
  • Four Selectable Fixed Gain Settings
  • Differential Inputs

All trademarks are the property of their respective owners.

open-in-new Find other Speaker amps

Description

The TPA3111D1-Q1 device is a 10-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™ protection circuitry includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a virtual 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 TPA3111D1-Q1 device can drive a mono speaker as low as 4 Ω. The high efficiency of the TPA3111D1-Q1 device, > 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.

For all available packages, see the orderable addendum at the end of the data sheet.
open-in-new Find other Speaker amps
Download

22-W Mono Automotive Digital Audio Amplifier With Load Dump and I2C Diagnostics:  TAS5421-Q1

8-W Mono Automotive Digital Audio Amplifier With Load Dump and I2C Diagnostics:  TAS5411-Q1

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet TPA3111D1-Q1 10-W Filter-Free Mono Class-D Audio Power Amplifier With Speakerguard™ datasheet (Rev. E) Dec. 30, 2015
Application notes Using Thermal Calculation Tools for Analog Components (Rev. A) Aug. 30, 2019
Application notes Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application notes AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
Application notes Class-D Amplifier External Load Diagnostics Jan. 23, 2017
Application notes Short-to-Battery Protection Strategies for Class-D Amplifiers Nov. 11, 2016
Technical articles Life-saving technologies to the rescue Mar. 06, 2014
Application notes AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 01, 2013
User guides TPA3111D1EVM Audio Amplifier Evaluation Board User's Guide (Rev. A) Jul. 07, 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
149
Description

The TPA3111D1 evaluation module consists of a single 10-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 (...)

Features
  • Greater Than 90% Efficient Class-D Operation
  • Support for Filter-Free Operation
  • SpeakerGuard™ Speaker Protection circuitry
  • Four Selectable, Fixed Gain Settings
  • Wide Operating Voltage: 8 V - 26 V
  • Thermal and Short Circuit Protection with Auto Recovery Feature

Design tools & simulation

SIMULATION MODELS Download
SLAM054A.TSC (257 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLAM055A.ZIP (13 KB) - TINA-TI Spice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
GERBER FILES Download
SLOC152.ZIP (579 KB)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 28 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos