TPA6404QDKQRQ1 Integrated Circuit Chip
45W 2MHz 4-Channel Automotive Class-D Audio Amplifier With Load Dump
Product Overview
The TPA6404QDKQRQ1 is a four-channel analog-input Class-D audio amplifier featuring a 2.1MHz PWM switching frequency. This enables a cost-optimized solution in a compact 4.5cm² PCB size, full operation down to 4.5V for start/stop events, and exceptional sound quality with up to 100kHz audio bandwidth.
This Class-D audio amplifier is optimally designed for entry-level automotive head units that provide analog audio input signals as part of their system design.
Technical Specifications
| Type |
Class D |
| Output Type |
4-Channel (Quad) |
| Max Output Power x Channels @ Load |
85W x 4 @ 1Ω |
| Voltage - Supply |
4.5V ~ 18V |
| Features |
I2C, Mute, Standby, Thermal Protection |
| Mounting Type |
Surface Mount |
| Operating Temperature |
-40°C ~ 125°C |
Key Features
Advanced Diagnostics
- Advanced load diagnostics
- AC diagnostic for tweeter detection with impedance and phase response
- Integrated sine wave generator
- Easy to meet CISPR25-L5 EMC specification
Automotive Qualification
- AEC-Q100 Qualified for automotive applications
- Temperature Grade 1: -40°C to 125°C TA
- Device HBM ESD classification level: 3A
- Device CDM ESD classification level: C4B
Audio Inputs
- 4 Channel differential analog input
- Four I2C-controlled gain options
- High input impedance for low value AC-coupling capacitor
Audio Outputs
- Four-channel Bridge-tied load (BTL), with option of parallel BTL (PBTL)
- Up to 2.1 MHz Output switching frequency
- 27 W, 10% THD into 4Ω at 14.4V
- 45W, 10% THD into 2Ω at 14.4V
- 85W, 10% THD into 1Ω at 14.4V PBTL
Audio Performance
- THD+N < 0.01%
- 42µVRMS Output noise
- -90dB Crosstalk
Load Diagnostics
- Output open and shorted load
- Output-to-battery or ground shorts
- Line output detection up to 6kΩ
- Runs without input clocks
Protection Features
- Output current limiting
- Output short protection
- 40V Load dump
- Fortuitous Open ground and power tolerant
- DC Offset protection
- Over temperature protection
- Undervoltage and overvoltage protection
General Operation
- 4.5V to 18V supply voltage
- I2C Control With 4 Address Options
- Clip Detection and Thermal Foldback
Applications
- Automotive Head Units
- Automotive External Amplifier Modules
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Frequently Asked Questions
Are your products original?
Yes, all products are original, new original import is our purpose.
Which Certificates do you have?
We are ISO 9001:2015 Certified Company and member of ERAI.
Can you support small quantity order or sample? Is the sample free?
Yes, we support sample order and small order. Sample cost is different according to your order or project.
How to ship my order? Is it safe?
We use express to ship, such as DHL, Fedex, UPS, TNT, EMS. We can also use your suggested forwarder. Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
What about the lead time?
We can ship stock parts within 5 working days. If without stock, we will confirm lead time for you based on your order quantity.
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