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音訊、觸覺和壓電
音訊放大器
喇叭、電視與條型音箱音訊放大器

TPA3128D2

現行

具低無效電流的 30-W 立體聲道、60-W 單聲道、4.5 至 26-V 類比輸入 D 級音訊放大器

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產品規格表

TPA3128D2

現行
產品規格表 立即訂購

產品詳細資料

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Output power (W) 30 Power stage supply (max) (V) 26 Power stage supply (min) (V) 4.5 RDS(on) (Ω) 0.09 THD + N at 1 kHz (%) 0.1 Load (min) (Ω) 2 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 26 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Output power (W) 30 Power stage supply (max) (V) 26 Power stage supply (min) (V) 4.5 RDS(on) (Ω) 0.09 THD + N at 1 kHz (%) 0.1 Load (min) (Ω) 2 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 26 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (DAP) 32 89.1 mm² 11 x 8.1
  • Supports Multiple Output Configurations
    • 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3128D2)
    • 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3129D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Efficient Class-D Operation
    • Very Low Idle Current: <23 mA for recommended LC filter configurations
    • Greater than 90% Power Efficiency Combined With Low Idle Loss Greatly Eliminates Need for Heat Sink
    • Adaptive Modulation Schemes based on Output Power
    • Smart Amplifier Drivers to Reduce the Requirement for RC Snubbers
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • 300-KHz to 1.2-MHz Switching Frequency
  • Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
  • Programmable Power Limit
  • Parallel BTL Mode and Mono-Channel Mode Support
  • Supports Both Single and Dual Power Supply Modes
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Packages
    • DAP (32-Pin HTSSOP Pad Down for TPA3128D2 and TPA3129D2)
  • Supports Multiple Output Configurations
    • 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3128D2)
    • 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3129D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Efficient Class-D Operation
    • Very Low Idle Current: <23 mA for recommended LC filter configurations
    • Greater than 90% Power Efficiency Combined With Low Idle Loss Greatly Eliminates Need for Heat Sink
    • Adaptive Modulation Schemes based on Output Power
    • Smart Amplifier Drivers to Reduce the Requirement for RC Snubbers
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • 300-KHz to 1.2-MHz Switching Frequency
  • Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
  • Programmable Power Limit
  • Parallel BTL Mode and Mono-Channel Mode Support
  • Supports Both Single and Dual Power Supply Modes
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Packages
    • DAP (32-Pin HTSSOP Pad Down for TPA3128D2 and TPA3129D2)

The TPA3128D2 and TPA3129D2 have low idle power loss and helps to extend the battery life of Bluetooth/Wireless speakers and other battery-powered audio systems. The high efficiency of the TPA3128D2 device allows it to do 2 × 30 W without external heat sink on a dual layer PCB. The high efficiency of the TPA3129D2 device allows it to do 2 × 15 W without external heat sink on a dual layer PCB. This device proposed an efficiency boost Mode, which can dynamically reduced the current ripple of the external LC filter and the idle current .

The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences, which is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.

The TPA31xxD2 devices are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.

The TPA3128D2 and TPA3129D2 have low idle power loss and helps to extend the battery life of Bluetooth/Wireless speakers and other battery-powered audio systems. The high efficiency of the TPA3128D2 device allows it to do 2 × 30 W without external heat sink on a dual layer PCB. The high efficiency of the TPA3129D2 device allows it to do 2 × 15 W without external heat sink on a dual layer PCB. This device proposed an efficiency boost Mode, which can dynamically reduced the current ripple of the external LC filter and the idle current .

The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences, which is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.

The TPA31xxD2 devices are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.
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類型 標題 日期
* Data sheet TPA3128D2, TPA3129D2 2x30-W, 2x15-W Class-D Amplifier With Low Idle Power Dissipation datasheet (Rev. C) PDF | HTML 2018年 1月 22日
Application note Achieve Ultra-Low Idle Current With TPA3128D2 (Rev. A) 2018年 5月 1日
White paper Overview of system-level protection in class-D audio amplifiers 2017年 12月 6日
Technical article What are the building blocks of Bluetooth speakers? PDF | HTML 2017年 2月 21日
More literature TPA3128D2EVM Quick Start Guide 2017年 1月 30日
User guide TPA3128D2 Evaluation Module 2016年 12月 6日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPA3110D2EVM — TPA3110D2 評估模組

The TPA3110D2 evaluation module consists of a single 15-W, Class-D, stereo audio power amplifier complete with a small number of external components mounted on a circuit board that can be used to directly drive a speaker with an external analog audio source as the input. The EVM’s default (...)

使用指南: PDF
TI.com 無法提供
開發板

TPA3128D2EVM — 超低待機功耗的 TPA3128D2 2×30W D 類放大器評估模組

TPA3128D2EVM 可評估 TPA3128D2。這是一款高效率的 D 類音訊功率放大器，用於驅動 2 個橋接式立體聲喇叭，每聲道 30W。  TPA3128D2 具有低靜態功耗特性，可延長藍牙/無線揚聲器及其他電池供電音頻系統的電池壽命。  評估模組僅安裝 1 個 TPA3128D2 裝置。它採用 4.5V 至 26V 的單電源供電。  TPA3128D2 裝置配備短路保護和具有自動恢復功能的熱防護，可全面防止發生故障。

TPA3128D2 裝置支援並聯 BTL 模式和單通道模式。
使用指南: PDF
TI.com 無法提供
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
要求
參考設計

TIDA-050024 — 適用於中功率音訊功率放大器的封包追蹤電源供應參考設計

此參考設計提供封包追蹤電源供應電路，適合配備 TPS43061 升壓控制器的中功率音訊功率放大器 (PA) 應用。將音訊封包訊號新增至 FB 接腳後，升壓轉換器的輸出電壓便可隨音訊訊號封包而改變。升壓轉換器可為 PA 提供動態變化的供應電壓。因此， PA 在輸出功率範圍內總是以高效率運作。
Design guide: PDF
電路圖: PDF
參考設計

PMP15036 — 適用於音訊功率放大器的封包追蹤電源參考設計

此封包追蹤電源參考設計可協助延長 Bluetooth® 或 Wi-Fi 喇叭等可攜式音訊應用的電池壽命。此設計中的低功耗降壓式轉換器具備音訊功率放大器封包追蹤功能，可在整個輸出電壓範圍維持高效率。將音訊包絡訊號加入 TI TPS61178 裝置的 FB 腳位，可使輸出電壓依據音訊訊號的包絡變化動態調整，進而最佳化 TPA3128D2 功率放大器的耗電表現。
Test report: PDF
電路圖: PDF
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HTSSOP (DAP) 32 Ultra Librarian
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