Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Qualification | AEC-Q100 Grade 1, −40°C to +125°C ambient stated |
| Channels | 4-channel BTL or 2-channel PBTL automotive Class-D |
| Power | 45 W into 2 Ω at 14.4 V BTL; 75 W into 4 Ω at 25 V BTL; 150 W into 2 Ω at 25 V PBTL, each at stated 10% THD condition |
| Supply | 4.5 V to 26.4 V |
| Digital Audio | 4-channel I²S or 4/8-channel TDM; 44.1/48/96 kHz; 16–32-bit |
| Switching | Up to 2.1 MHz output switching; AM-band/EMI management |
| Diagnostics / Protection | DC/AC load diagnostics, open/short-to-battery/ground detection, current/thermal/UV/OV protection and 40-V load-dump tolerance |
| Exact Package / Packing | PowerPAD HSSOP (DKQ), 56 pins; 1000-piece reel |
Product Overview
TAS6424EQDKQRQ1 is an automotive digital-input Class-D power amplifier for head units and external amplifier modules. Four bridge outputs, high-voltage load-dump tolerance and AEC-Q100 qualification separate it from consumer audio amplifiers even when nominal wattage appears similar.
Integrated load diagnostics can detect open loads, shorts, line-output conditions and even AC-coupled tweeter behavior. That can reduce end-of-line manufacturing test time and improve in-vehicle fault reporting.
The 2.1-MHz-capable switching system and spread-spectrum/phase/slew controls are designed to help meet automotive EMC constraints such as CISPR 25. Power output and thermals must still be evaluated at the actual vehicle supply, speaker impedance and distortion limit.
For related devices, see HKEQGOO’s Audio Amplifiers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TAS6424EQDKQRQ1 |
| Qualification | AEC-Q100 Grade 1, −40°C to +125°C ambient stated |
| Channels | 4-channel BTL or 2-channel PBTL automotive Class-D |
| Power | 45 W into 2 Ω at 14.4 V BTL; 75 W into 4 Ω at 25 V BTL; 150 W into 2 Ω at 25 V PBTL, each at stated 10% THD condition |
| Supply | 4.5 V to 26.4 V |
| Digital Audio | 4-channel I²S or 4/8-channel TDM; 44.1/48/96 kHz; 16–32-bit |
| Switching | Up to 2.1 MHz output switching; AM-band/EMI management |
| Diagnostics / Protection | DC/AC load diagnostics, open/short-to-battery/ground detection, current/thermal/UV/OV protection and 40-V load-dump tolerance |
| Exact Package / Packing | PowerPAD HSSOP (DKQ), 56 pins; 1000-piece reel |
| Manufacturer Status | Active / Production |
| Part Marking | TAS6424E-Q1 family marking per TI package data |
Functional Highlights
Automotive diagnostics turn the amplifier into a system monitor
Speaker wiring faults and tweeter connectivity can be checked through I²C rather than relying only on external test fixtures.
High switching frequency can move PWM energy above the AM band
This can reduce output-filter size and AM-band interference, while alternative lower switching modes can be selected for efficiency tradeoffs.
Design Considerations
- Use the PowerPAD/heatsink layout to dissipate worst-case four-channel power and fault heat.
- Do not compare output wattage without the exact supply, load and 10% THD conditions.
- Integrate load-diagnostic and fault registers into vehicle software/service strategy.
Product Status and Exact Order Code
Texas Instruments lists TAS6424EQDKQRQ1 as Active / Production automotive family; exact TAS6424EQDKQRQ1 uses HSSOP (DKQ), 56 pins, 1000-piece tape-and-reel packaging.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
