TPA6404-Q1
- Advanced load diagnostics
- AC diagnostic for tweeter detection with impedance and phase response
- Integrated sine wave generator
- Easy to meet CISPR25-L5 EMC specification
- 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 into 4Ω at 14.4V, 1kHz
- 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
- Output current limiting
- Output short protection
- 40V Load dump
- Fortuitous Open ground and power tolerant
- DC Offset
- Over temperature
- Undervoltage and overvoltage
- General operation
- 4.5V to 18V supply voltage
- I2C Control With 4 Address Options
- Clip Detection and Thermal Foldback
The TPA6404-Q1 device is a four-channel analog-input Class-D audio amplifier that implements a 2.1MHz PWM switching frequency that enables a cost optimized solution in a very small 4.5cm2 PCB size, full operation down to 4.5V for start/stop events, and exceptional sound quality with up to 100kHz audio bandwidth.
The TPA6404-Q1 Class-D audio amplifier has an optimal design for use in entry level automotive head units that provide analog audio input signals as part of their system design.
The Class-D topology dramatically improves efficiency over traditional linear amplifier solutions.
The output switching frequency operates above the AM band, which eliminates the AM band interference and reduces the output filter size and cost.
The device is offered in a 56 pin HSSOP package with the exposed thermal pad up.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPA6404-Q1 45W, 2MHz Analog Input 4 -Channel Automotive Class-D Audio Amplifier with Load Dump Protection and I2 C Diagnostics datasheet (Rev. B) | PDF | HTML | 2025/1/15 | ||
| Application brief | Diagnostics and Protections in Automotive Audio Systems (Rev. A) | 2019/9/24 | ||||
| 應用說明 | Inductor Selection Guide for 2.1 MHz Class-D Amplifiers (Rev. A) | PDF | HTML | 2019/9/5 | |||
| 技術文章 | Why you should use a Class-D audio amplifier in your automotive infotainment syste | PDF | HTML | 2018/1/8 |
設計與開發
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TPA6404Q1EVM — TPA6404-Q1 50W、2MHz 類比輸入四通道車用 D 類音訊放大器評估模組
TPA6404Q1EVM 評估模組 (EVM) 展示了德州儀器的 TPA6404-Q1 積體電路。TPA6404-Q1 裝置是一款四通道類比輸入 D 類音訊放大器，採用 2.1MHz PWM 切換頻率，可在非常小的 PCB 尺寸內實現成本最佳化的解決方案，在啟動/停止事件時可在低至 4.5V 的電壓下完全運作，音訊頻寬高達 40kHz，音質卓越。
此 TPA6404Q1EVM 支援 4 個 BTL 輸出通道，4 個差動輸入，以及適用 GUI 驅動評估與診斷的板載 USB-I2C 控制器。TPA6404Q1EVM 為完整的車用 D (...)
PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development
PurePath™ Console 是一款高度整合且容易使用的音訊開發套件，專爲簡化音訊產品開發相關評估、配置和偵錯程序所設計。瞭解使用 PurePath™ Console 3 軟體有多簡單。
PurePath Console 的直覺式圖形介面無需進階音訊工程專業，因此讓音訊設計更加簡明直觀。在簡單易用的圖形介面中，實作 PurePath Console 的眾多進階控制功能，並以縮短產品開發時間為目標，為您實現高度最佳化的音訊性能、最低功耗和順暢系統整合。支援的裝置：
PurePath™ Console 1：PCM5142、TAS5721、TAS5729MD、TAS5731 和 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSSOP (DKQ) | 56 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。