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Product Detailed Parameters
- Description：IC AMP CLASS D QUAD 75W 56HSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class D
- Output Type：4-Channel (Quad)
- Max Output Power x Channels @ Load：150W x 2 @ 2Ohm; 75W x 4 @ 4Ohm
- Voltage - Supply：4.5V ~ 26.4V
- Features：Depop, Short-Circuit and Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：56-HSSOP
- Package / Case：56-PowerBSSOP (0.295", 7.50mm Width)
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The TAS6424QDKQRQ1 is a four-channel digital input Class-D audio amplifier designed for automotive applications. It delivers up to 75 W of output power into a 4-ohm load at 25 V with 10% THD+N. The device operates on a supply voltage range of 4.5 V to 26.4 V, supporting vehicle start-stop systems. It features a 2-MHz PWM switching frequency and supports I2S or TDM digital audio inputs with sample rates up to 96 kHz. Integrated diagnostics include open-load, short-to-battery, and short-to-ground detection via I2C.
Feature Summary
- Digital audio interface supporting I2S and TDM protocols for high-resolution audio processing
- Integrated load dump protection and advanced diagnostic capabilities for system reliability
- Enhanced electromagnetic interference management through spread spectrum and optimized slew rate control
Applications
- Automotive audio head units
- External automotive amplifier modules
- High-channel-count car infotainment systems
Procurement Notes
Verify the complete part number including suffixes such as Q1 for automotive qualification and DKQ for package type. Confirm that the specific revision matches the required datasheet version. Ensure compatibility with the target PCB footprint for the HSSOP-56 package. Check for any specific ordering restrictions or minimum packaging quantities defined by the distributor.
Selection Notes
Select this component when a four-channel solution with digital input is required for automotive environments. It is suitable for designs needing high power density and robust diagnostic features. Compare against TAS6422-Q1 for stereo applications or TAS6424L-Q1 for lower power requirements. Ensure the system design accommodates the thermal dissipation needs for the HSSOP-56 package under maximum load conditions.
Part Context
This device belongs to the Texas Instruments TAS6424-Q1 family of digital input amplifiers. It shares architectural similarities with the TAS6422-Q1 but offers four channels instead of two. The series is characterized by its 2-MHz switching frequency and integrated I2C diagnostics, distinguishing it from analog input counterparts like the TPA6404-Q1.
Replacement Considerations
Direct pin-compatible alternatives within the same family include the TAS6424EQDKQRQ1 for higher power variants. For lower power needs, the TAS6424LQDKQRQ1 may be considered if channel count remains four. Verify electrical specifications and thermal performance before substituting.
