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音訊放大器
車用音訊放大器

TPA6304-Q1

現行

45W、2.1MHz 類比輸入 4 通道車用 D 類 Burr-Brown™ 音訊放大器

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產品規格表

TPA6304-Q1

現行
產品規格表 立即訂購

產品詳細資料

Output power (W) 45 Power stage supply (max) (V) 18 Power stage supply (min) (V) 4.5 Speaker channels (max) 4 Features thermal pad up Audio input type Analog Input Control interface I2C THD + N at 1 kHz (%) 0.09 Switching frequency (max) (Hz) 2300000 Output noise voltage (µV) 35 Sampling rate (max) (Hz) 96000 Rating Automotive Operating temperature range (°C) -40 to 125
Output power (W) 45 Power stage supply (max) (V) 18 Power stage supply (min) (V) 4.5 Speaker channels (max) 4 Features thermal pad up Audio input type Analog Input Control interface I2C THD + N at 1 kHz (%) 0.09 Switching frequency (max) (Hz) 2300000 Output noise voltage (µV) 35 Sampling rate (max) (Hz) 96000 Rating Automotive Operating temperature range (°C) -40 to 125
HTSSOP (DDV) 44 113.4 mm² (14 mm × 8.1 mm)
  • Highest efficiency Class-D
    • Significantly more efficient than Class-AB
    • Reduce thermal solution with 75% less heat dissipation than Class-AB
  • Start/stop operation down to 4.5 V
  • AEC-Q100 Qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C TA
    • HBM ESD Classification level 2
    • CDM ESD Classification level C2B
  • 27 W, 10% THD into 4 Ω at 14.4 V
    • Drives 4 Ω and 2 Ω loads
  • Load diagnostics
    • Output open, shorted load
    • Output-to-battery or ground shorts
    • Tweeter connected
  • Designed with advanced gate drive to meet CISPR25-L5 EMC specification
    • Class-D at 2.1 MHz, no AM interference
    • Spread Spectrum mode, Phase Offset, Slew Rate Control
  • Protection
    • 40 V Load dump
    • Output short protection
    • DC offset and over temperature
    • Fortuitous open ground and power tolerant
  • Audio inputs
    • 4 Channel single-ended analog input
    • 10 dB, 16 dB, 22 dB or 28 dB Gain option
  • Supports parallel channel drive (PBTL)
  • Audio performance into 4 Ω at 14.4 V, 1 kHz
    • THD+N < 0.006%
    • 42 µVRMS Output Noise
    • 80 dB PSRR
    • Efficiency > 80%
  • Special features
    • Programmable clip detection
    • Load current limiter
    • Thermal gain foldback
    • Fast and autonomous startup diagnostics
    • AC load impedance measurement with < 10 mA load current
  • Highest efficiency Class-D
    • Significantly more efficient than Class-AB
    • Reduce thermal solution with 75% less heat dissipation than Class-AB
  • Start/stop operation down to 4.5 V
  • AEC-Q100 Qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C TA
    • HBM ESD Classification level 2
    • CDM ESD Classification level C2B
  • 27 W, 10% THD into 4 Ω at 14.4 V
    • Drives 4 Ω and 2 Ω loads
  • Load diagnostics
    • Output open, shorted load
    • Output-to-battery or ground shorts
    • Tweeter connected
  • Designed with advanced gate drive to meet CISPR25-L5 EMC specification
    • Class-D at 2.1 MHz, no AM interference
    • Spread Spectrum mode, Phase Offset, Slew Rate Control
  • Protection
    • 40 V Load dump
    • Output short protection
    • DC offset and over temperature
    • Fortuitous open ground and power tolerant
  • Audio inputs
    • 4 Channel single-ended analog input
    • 10 dB, 16 dB, 22 dB or 28 dB Gain option
  • Supports parallel channel drive (PBTL)
  • Audio performance into 4 Ω at 14.4 V, 1 kHz
    • THD+N < 0.006%
    • 42 µVRMS Output Noise
    • 80 dB PSRR
    • Efficiency > 80%
  • Special features
    • Programmable clip detection
    • Load current limiter
    • Thermal gain foldback
    • Fast and autonomous startup diagnostics
    • AC load impedance measurement with < 10 mA load current

The TPA6304-Q1 device is a four-channel analog-input Class-D Burr-Brown™ audio amplifier that implements a 2.1 MHz PWM switching frequency that enables a cost optimized solution in a very small 2.7 cm2 PCB size, high impedance single ended inputs and full operation down to 4.5 V for start/stop events.

The TPA6304-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 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 further optimize efficiency.

The device is offered in a 44 pin HTSSOP package with the exposed thermal pad up.

The TPA6304-Q1 device is a four-channel analog-input Class-D Burr-Brown™ audio amplifier that implements a 2.1 MHz PWM switching frequency that enables a cost optimized solution in a very small 2.7 cm2 PCB size, high impedance single ended inputs and full operation down to 4.5 V for start/stop events.

The TPA6304-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 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 further optimize efficiency.

The device is offered in a 44 pin HTSSOP package with the exposed thermal pad up.
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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 TPA6304-Q1 45-W,​​​ 2.1-MHz Analog Input 4-Channel Automotive Class-D Burr-Brown™ Audio Amplifier with Load Dump Protection and I2C Diagnostics datasheet (Rev. B) PDF | HTML 2020/12/11
應用說明 Using TI Audio Amplifiers in Automotive Seat Shaker Applications PDF | HTML 2026/1/5
應用說明 Understanding Thermal Capabilities of Automotive Class-D Amplifiers (Rev. A) PDF | HTML 2021/6/8
技術文章 Concerned about transitioning from Class-AB to a Class-D? Well, you shouldn’t be. PDF | HTML 2019/10/10
白皮書 Automotive Audio Design Considerations to Minimize Amplifier Size & Thermal Load 2019/10/9
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

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開發板

TPA6304Q1EVM — 2.1-MHz 類比輸入 4 通道車用 D 類音訊放大器評估模組

TPA6304-Q1 評估模組展示了用於車載資訊娛樂應用程式的業界最小 2.1-MHz 4 通道類比輸入 D 類音訊解決方案。TPA6304-Q1 的 2.1-MHz 切換頻率可讓客戶能夠大幅減小電感器尺寸和成本，並將整體系統成本最佳化。本裝置提供四個通道，在 14.4-V 電源電壓時，功率為 27 W，阻抗為 4 Ω，THD+N 為 10%，以及功率為 45 W，阻抗為 2 Ω，THD+N 為 10%。TPA6304-Q1 的 4.5-V 至 18-V 的廣泛供應電壓能力非常適用於音響主機和外部放大器系統，同時在啟停低電壓瞬態事件期間提供一流的性能。TPA6304-Q1 裝置整合了 (...)
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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。

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PurePath™ Console 1：PCM5142、TAS5721、TAS5729MD、TAS5731 和 (...)
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計算工具

SLAR166 — TPA6304-Q1 Thermal Design

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參考設計

TIDEP-01020 — 適用於閘道、輔助和自動化駕駛系統的汽車領域控制器參考設計

現今在路上的分散式車輛架構採用個別 ECU，缺乏處理能力與高速介面，不足以應對新興汽車架構的複雜任務與資料傳輸需求。更高階的功能需要 DMIPS、資料頻寬與電源效率的適當組合。我們 Jacinto™ 7 處理器系列中的 DRA829V 和 TDA4VM 處理器可提供這些架構所需的必要性能、電源和汽車介面。

此汽車參考設計可實現網域架構，同時展現 DRA829V 和 TDAV4M SoC 的性能。這款 8 層 PCB 設計經過最佳化，可降低成本並縮短上市時間，是評估具有全功能網域控制器電路板的 Jacinto 7 處理器的絕佳方式，同時可實現包括乙太網路、CAN-FD 和 PCIe (...)

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