Home Audio Audio amplifiers Speaker amps
Home
Audio
Audio amplifiers
Speaker amps

TAS6424-Q1

ACTIVE

Automotive, 75-W, 2-MHz, 4-ch, 4.5- to 26.4-V digital input Class-D audio amplifier

Order now
Data sheet

TAS6424-Q1

ACTIVE
Data sheet Order now

Product details

Audio input type Digital Input Architecture Class-D Speaker channels (max) 4 Rating Automotive Power stage supply (max) (V) 26.4 Power stage supply (min) (V) 4.5 Load (min) (Ω) 1 Output power (W) 75 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 165 Control interface I2C Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 26.4 Sampling rate (max) (kHz) 96 PSRR (dB) 75 Operating temperature range (°C) -40 to 125
Audio input type Digital Input Architecture Class-D Speaker channels (max) 4 Rating Automotive Power stage supply (max) (V) 26.4 Power stage supply (min) (V) 4.5 Load (min) (Ω) 1 Output power (W) 75 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 165 Control interface I2C Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 26.4 Sampling rate (max) (kHz) 96 PSRR (dB) 75 Operating temperature range (°C) -40 to 125
HSSOP (DKQ) 56 190.647 mm² 18.42 x 10.35
  • Advanced Load Diagnostics
    • Runs without Input Clocks
    • AC Diagnostic for Tweeter Detection with Impedance and Phase Response
  • Easy to meet CISPR25-L5 EMC Specification
  • Qualified for Automotive Applications
  • Audio Inputs
    • 4 Channel I2S or 4/8-Channel TDM Input
    • Input Sample Rates: 44.1 kHz, 48 kHz, 96 kHz
    • Input Formats: 16-bit to 32-bit I2S, and TDM
  • Audio Outputs
    • Four-Channel Bridge-Tied Load (BTL), With Option of Parallel BTL (PBTL)
    • Up to 2.1-MHz Output Switching Frequency
    • 75 W, 10% THD Into 4 Ω at 25 V
    • 45 W, 10% THD Into 2 Ω at 14.4 V
    • 150 W, 10% THD Into 2 Ω at 25 V PBTL
  • Audio Performance Into 4 Ω at 14.4 V
    • THD+N < 0.03% at 1 W
    • 42-µVRMS Output Noise
    • –90-dB Crosstalk
  • Load Diagnostics
    • Output Open and Shorted Load
    • Output-to-Battery or Ground Shorts
    • Line Output Detection Up to 6 kΩ
    • Host-Independent Operation
    • Programmability for Flexible Production Line Testing
  • Protection
    • Output Current Limiting
    • Output Short Protection
    • 40-V Load Dump
    • Open Ground and Power Tolerant
    • DC Offset
    • Overtemperature
    • Undervoltage and Overvoltage
  • General Operation
    • 4.5-V to 26.4-V Supply voltage
    • I2C Control With 4 Address Options
    • Clip Detection and Thermal Warning
  • Advanced Load Diagnostics
    • Runs without Input Clocks
    • AC Diagnostic for Tweeter Detection with Impedance and Phase Response
  • Easy to meet CISPR25-L5 EMC Specification
  • Qualified for Automotive Applications
  • Audio Inputs
    • 4 Channel I2S or 4/8-Channel TDM Input
    • Input Sample Rates: 44.1 kHz, 48 kHz, 96 kHz
    • Input Formats: 16-bit to 32-bit I2S, and TDM
  • Audio Outputs
    • Four-Channel Bridge-Tied Load (BTL), With Option of Parallel BTL (PBTL)
    • Up to 2.1-MHz Output Switching Frequency
    • 75 W, 10% THD Into 4 Ω at 25 V
    • 45 W, 10% THD Into 2 Ω at 14.4 V
    • 150 W, 10% THD Into 2 Ω at 25 V PBTL
  • Audio Performance Into 4 Ω at 14.4 V
    • THD+N < 0.03% at 1 W
    • 42-µVRMS Output Noise
    • –90-dB Crosstalk
  • Load Diagnostics
    • Output Open and Shorted Load
    • Output-to-Battery or Ground Shorts
    • Line Output Detection Up to 6 kΩ
    • Host-Independent Operation
    • Programmability for Flexible Production Line Testing
  • Protection
    • Output Current Limiting
    • Output Short Protection
    • 40-V Load Dump
    • Open Ground and Power Tolerant
    • DC Offset
    • Overtemperature
    • Undervoltage and Overvoltage
  • General Operation
    • 4.5-V to 26.4-V Supply voltage
    • I2C Control With 4 Address Options
    • Clip Detection and Thermal Warning

The TAS6424-Q1 device is a Four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency that enables a cost-optimized solution in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth

The TAS6424-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. The device provides four channels at 27 W into 4 Ω at 10% THD+N and 45 W into 2 Ω at 10% THD+N from a 14.4-V supply and 75 W into 4 Ω at 10% THD+N from a 25-V supply. The Class-D topology dramatically improves efficiency over traditional linear amplifier solutions. The output switching frequency can be set either above the AM band, which eliminates the AM-band interference and reduces output filter size and cost, or below AM band to optimize efficiency.

For a pin compatible two-channel amplifier, see the TAS6422-Q1

The device is offered in a 56-pin HSSOP PowerPAD™ package with the exposed thermal pad up.

The TAS6424-Q1 device is a Four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency that enables a cost-optimized solution in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth

The TAS6424-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. The device provides four channels at 27 W into 4 Ω at 10% THD+N and 45 W into 2 Ω at 10% THD+N from a 14.4-V supply and 75 W into 4 Ω at 10% THD+N from a 25-V supply. The Class-D topology dramatically improves efficiency over traditional linear amplifier solutions. The output switching frequency can be set either above the AM band, which eliminates the AM-band interference and reduces output filter size and cost, or below AM band to optimize efficiency.

For a pin compatible two-channel amplifier, see the TAS6422-Q1

The device is offered in a 56-pin HSSOP PowerPAD™ package with the exposed thermal pad up.
open-in-new Find other Speaker amps
Download View video with transcript Video
Information

Request more information

PurePath™ Console 3, TAS6424-Q1 GUI and other design resources are available. Request now

Similar products you might be interested in

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
TAS6424E-Q1 ACTIVE Automotive, 75-W, 2-MHz, quad-channel, 4.5- to 26.4-V digital input Class-D audio amplifier Enhanced (unlatched clip detect and spread spectrum) amplifier.
Pin-for-pin with same functionality to the compared device
TAS6421-Q1 ACTIVE Automotive, 75-W, 2-MHz, 1-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump TAS6421-Q1 is our 1-channel automotive Class-D digital input amplifier which implements 2.1MHz switching frequency
TAS6422-Q1 ACTIVE Automotive, 75-W, 2-MHz, 2-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump TAS6422-Q1 is our 2-channel automotive Class-D digital input amplifier which implements 2.1MHz switching frequency

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 9
Type Title Date
* Data sheet TAS6424-Q1 75-W,​​​ 2-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier With Load-Dump Protection and I2C Diagnostics datasheet (Rev. B) PDF | HTML 10 Oct 2017
Application note Inductor Selection Guide for 2.1 MHz Class-D Amplifiers (Rev. A) 05 Sep 2019
Technical article “The Jetsons” are coming to an electric vehicle near you – sort of 31 Jan 2019
Technical article Why you should use a Class-D audio amplifier in your automotive infotainment system 08 Jan 2018
EVM User's guide TAS6424-Q1 EVM User's Guide (Rev. A) 20 Oct 2017
Technical article Forget the tiny homes craze – Have you heard about tiny inductors for automotive Class-D amplifiers? 12 Oct 2017
Application note Class-D Amplifier External Load Diagnostics 23 Jan 2017
Technical article How switching above the AM band eases automotive Class-D amplifier EMC designs 05 Dec 2016
Application note LC Filter Design (Rev. A) 09 Nov 2016

Design & development

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

Evaluation board

TAS6424LQ1EVM — TAS6424LQ1 2.1MHz 4Ch Digital Input Class-D Audio Amplifier w/I2C Diagnostics Evaluation Module

The TAS6424L EVM showcases the first true 2.1Mhz 4-Ch Digital Input Class-D Audio Solution for automotive infotainment in the market.  TAS6424L’s 2.1-Mhz switching frequency allows customers to significantly reduce inductor size and cost and optimize total system cost. TAS6424L delivers (...)
User guide: PDF
Not available on TI.com
Simulation model

TAS6424 IBIS Model

SLOM433.ZIP (26 KB) - IBIS Model
Download
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Request
Reference designs

TIDEP-0097 — Entry-level head unit display audio with Jacinto™ 6 entry reference design

Based on TI's Jacinto™ DRA71x processor, this automotive reference design focuses on system-level cost savings. The 6 layer design reduces PCB costs through an optimized via breakout scheme, integration of key features and an optimized power distribution network. Functionality can be added or (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00733 — Automotive 8-Channel Class-D Amplifier with 2.1 MHz Switching Power Supply Reference Design

TIDA-00733 is a reference design for an eight-channel, Class-D amplifier that is capable of driving 2-Ω loads and an off-battery step-down power supply with 5-V and  3.3-V outputs. The amplifier design provides audio inputs for each audio channel. A  high-performance audio (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00743 — Automotive 2-MHz Class-D, 4-Channel, 21-W Audio Amplifier in Class AB Form-Factor Reference Design

The TIDA-00743 reference design is a small module designed for evaluation of a digital-input class-D audio amplifier in a system which has been designed for a typical class AB audio power amplifier module. This design demonstrates the reduction in power dissipation that a class D amplifier (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
HSSOP (DKQ) 56 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

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