TAS6424QDKQRQ1 Audio Amplifiers Automotive, 75-W, 2-MHz, 4-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump 56-HSSOP -40 to 125
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | Audio Amplifiers |
| RoHS: | Details |
| Series: | TAS6424-Q1 |
| Product: | Audio Amplifiers |
| Class: | Class-D |
| Output Power: | 75 W |
| Mounting Style: | SMD/SMT |
| Type: | 4-Channel Quad |
| Package/Case: | HSSOP-56 |
| Audio - Load Impedance: | 4 Ohms |
| THD plus Noise: | 0.02 % |
| Supply Voltage - Max: | 26.4 V |
| Supply Voltage - Min: | 4.5 V |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 125 C |
| Qualification: | AEC-Q100 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Brand: | Texas Instruments |
| Height: | 2.59 mm |
| Input Type: | Digital |
| Length: | 18.41 mm |
| Moisture Sensitive: | Yes |
| Number of Channels: | 4 Channel |
| Operating Supply Current: | 15 mA |
| Output Current: | 6.5 A |
| Product Type: | Audio Amplifiers |
| PSRR - Power Supply Rejection Ratio: | 75 dB |
| Shutdown: | Shutdown |
| Factory Pack Quantity: | 1000 |
| Subcategory: | Audio ICs |
| Width: | 7.49 mm |
| Unit Weight: | 831 mg |
♠ TAS6424-Q1 75-W, 2-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier With Load-Dump Protection and I 2C Diagnostics
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.
• 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 I 2S or 4/8-Channel TDM Input
– Input Sample Rates: 44.1 kHz, 48 kHz, 96 kHz
– Input Formats: 16-bit to 32-bit I 2S, 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
– I 2C Control With 4 Address Options
– Clip Detection and Thermal Warning
• Automotive Head Units
• Automotive External Amplifier Modules
