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
  • AEC-Q100 Qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C TA
  • Advanced load diagnostics
    • DC Diagnostics run without input clocks
    • AC Diagnostic for tweeter detection with impedance and phase response
  • Easily meets CISPR25-L5 EMC specifications
  • 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
    • Support for high resolution audio systems
  • Audio outputs
    • Four-channel bridge-tied load (BTL)
    • Two-channel parallel BTL (PBTL)
    • Up to 2.1 MHz output switching frequency
    • 45 W, 10% THD Into 2 Ω at 14.4 V BTL
    • 75 W, 10% THD Into 4 Ω at 25 V BTL
    • 150W, 10% THD Into 2 Ω at 25 V PBTL
  • Audio performance into 4 Ω at 14.4 V BTL
    • THD+N <0.009% at 1 W
    • 30 µVRMS output noise
    • –97 dB crosstalk
  • Load diagnostics
    • Open load, shorted load, short-to-battery, short-to-ground
    • Line output detection up to 6 kΩ
  • Protection
    • Output current limiting and short protection
    • 40 V Load dump
    • Open ground and power tolerant
    • DC offset
    • Over-temperature, undervoltage, and overvoltage
  • General operation
    • 4.5 V to 26.4 V supply voltage
    • I2C Control with 4 address options
    • Latched and non-latched clip detect
    • Enhanced EMI management
  • AEC-Q100 Qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C TA
  • Advanced load diagnostics
    • DC Diagnostics run without input clocks
    • AC Diagnostic for tweeter detection with impedance and phase response
  • Easily meets CISPR25-L5 EMC specifications
  • 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
    • Support for high resolution audio systems
  • Audio outputs
    • Four-channel bridge-tied load (BTL)
    • Two-channel parallel BTL (PBTL)
    • Up to 2.1 MHz output switching frequency
    • 45 W, 10% THD Into 2 Ω at 14.4 V BTL
    • 75 W, 10% THD Into 4 Ω at 25 V BTL
    • 150W, 10% THD Into 2 Ω at 25 V PBTL
  • Audio performance into 4 Ω at 14.4 V BTL
    • THD+N <0.009% at 1 W
    • 30 µVRMS output noise
    • –97 dB crosstalk
  • Load diagnostics
    • Open load, shorted load, short-to-battery, short-to-ground
    • Line output detection up to 6 kΩ
  • Protection
    • Output current limiting and short protection
    • 40 V Load dump
    • Open ground and power tolerant
    • DC offset
    • Over-temperature, undervoltage, and overvoltage
  • General operation
    • 4.5 V to 26.4 V supply voltage
    • I2C Control with 4 address options
    • Latched and non-latched clip detect
    • Enhanced EMI management

The TAS6424E-Q1 device is a four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling 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 output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.

The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.

The devices adds EMI management features including spread-spectrum, output phase offset and optimized slew rate to assist in system level EMI challenges.

The TAS6424E-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.

The TAS6424E-Q1 device is a four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling 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 output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.

The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.

The devices adds EMI management features including spread-spectrum, output phase offset and optimized slew rate to assist in system level EMI challenges.

The TAS6424E-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.

Download View video with transcript Video

Request more information

PurePath™ Console 3, TAS6422-Q1 GUI and other design resources are available. Request now

Similar products you might be interested in

open-in-new Compare alternates
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 a 1-channel automotive Class-D digital input amplifier which implements 2.1-MHz switching frequency.
TAS6422E-Q1 ACTIVE Automotive 75-W, 2-MHz, 2-channel, 4.5-V to 26.4-V digital input Class-D audio amplifier TAS6422E-Q1 is the 2 channel version of TAS6424E-Q1

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet TAS6424E-Q1 45-W,​​​ 2-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier with Load Dump Protection and I2C Diagnostics datasheet (Rev. A) PDF | HTML 21 Nov 2021
EVM User's guide TAS6424E-Q1 EVM User's Guide PDF | HTML 13 May 2021

Design & development

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

Evaluation board

TAS6424EQ1EVM — TAS6424E-Q1 evaluation module 75-W, 2-MHz, quad-channel digital input Class-D audio amplifier

The TAS6424EQ1EVM evaluation module (EVM) showcases the TAS6424E-Q1, a  2.1-Mhz, four-channel, digital input Class-D audio amplifier solution for automotive infotainment. The 2.1-Mhz switching frequency allows to significantly reduce inductor size.The TAS6424E-Q1 delivers 25 W (10% THD+N) per (...)
User guide: PDF | HTML
Not available on TI.com
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 (...)
Package Pins Download
HSSOP (DKQ) 56 View options

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
Information included:
  • Fab location
  • Assembly location

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

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