Automotive, 75-W, 2-MHz, 4-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump
Product details
Parameters
Package | Pins | Size
Features
- 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
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Description
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.
Same functionality and pinout but is not an equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | 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) | Oct. 10, 2017 |
Application note | Inductor Selection Guide for 2.1 MHz Class-D Amplifiers (Rev. A) | Sep. 05, 2019 | |
Technical article | “The Jetsons” are coming to an electric vehicle near you – sort of | Jan. 31, 2019 | |
Technical article | Why you should use a Class-D audio amplifier in your automotive infotainment system | Jan. 08, 2018 | |
User guide | TAS6424-Q1 EVM User's Guide (Rev. A) | Oct. 20, 2017 | |
Technical article | Forget the tiny homes craze – Have you heard about tiny inductors for automotive Class-D amplifiers? | Oct. 12, 2017 | |
Application note | Class-D Amplifier External Load Diagnostics | Jan. 23, 2017 | |
Technical article | How switching above the AM band eases automotive Class-D amplifier EMC designs | Dec. 05, 2016 | |
Application note | LC Filter Design (Rev. A) | Nov. 09, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- 2.1-Mhz Switching Frequency
- 4-Ch 27-W/Ch at 10% THD+N into 4-Ω with a 14.4-V supply
- I2C Diagnostics and Protection. CISPR25, class 5 Radiated/Conducted Emission compliant
- Optical SPDIF, USB and PSIA (external I2S) input options
Design tools & simulation
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
- (...)
Reference designs
Design files
-
download Entry Level Head Unit Display Audio With Jacinto™ 6 Entry BOM.pdf (50KB) -
download Entry Level Head Unit Display Audio With Jacinto™ 6 Entry Assembly Drawing.pdf (118KB) -
download Entry Level Head Unit Display Audio With Jacinto™ 6 Entry PCB.pdf (1127KB) -
download Entry Level Head Unit Display Audio With Jacinto™ 6 Entry CAD Files.zip (5105KB) -
download Entry Level Head Unit Display Audio With Jacinto™ 6 Entry Gerber.zip (937KB) -
download Entry Level Head Unit Display Audio With Jacinto™ 6 Entry BOM (.xlsx).zip (37KB)
Design files
-
download TIDA-00733 BOM.pdf (42KB) -
download TIDA-00733 Assembly Drawing.pdf (486KB) -
download TIDA-00733 PCB.pdf (3089KB) -
download TIDA-00733 CAD Files.zip (2228KB) -
download TIDA-00733 Gerber.zip (5557KB)
Design files
-
download TIDA-00743 BOM.pdf (29KB) -
download TIDA-00743 BOM (MOD INT).pdf (26KB) -
download TIDA-00743 Assembly Drawing.pdf (256KB) -
download TIDA-00743 Assembly Drawing (MOD INT).pdf (148KB) -
download TIDA-00743 PCB.pdf (1580KB) -
download TIDA-00743 PCB (MOD INT).pdf (930KB) -
download TIDA-00743 CAD Files.zip (1211KB) -
download TIDA-00743 CAD Files (MOD INT).zip (2892KB) -
download TIDA-00743 Gerber.zip (2842KB) -
download TIDA-00743 Gerber (MOD INT).zip (1811KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
HSSOP (DKQ) | 56 | View options |
Ordering & quality
- 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
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