TPA3118D2
- Supports Multiple Output Configurations
- 2 × 50 W Into a 4-Ω BTL Load at 21 V (TPA3116D2)
- 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3118D2)
- 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3130D2)
- Wide Voltage Range: 4.5 V to 26 V
- Efficient Class-D Operation
- >90% Power Efficiency Combined With Low Idle Loss Greatly Reduces Heat Sink Size
- Advanced Modulation Schemes
- Multiple Switching Frequencies
- AM Avoidance
- Master and Slave Synchronization
- Up to 1.2-MHz Switching Frequency
- Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
- Programmable Power Limit
- Differential and Single-Ended Inputs
- Stereo and Mono Mode With Single-Filter Mono Configuration
- Single Power Supply Reduces Component Count
- Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
- Thermally Enhanced Packages
- DAD (32-Pin HTSSOP Pad Up)
- DAP (32-Pin HTSSOP Pad Down)
- –40°C to 85°C Ambient Temperature Range
The TPA31xxD2 series are stereo efficient, digital amplifier power stage for driving speakers up to 100 W / 2 Ω in mono. The high efficiency of the TPA3130D2 allows it to do 2 × 15 W without external heat sink on a single layer PCB. The TPA3118D2 can even run 2 × 30 W / 8 Ω without heat sink on a dual layer PCB. If even higher power is needed the TPA3116D2 does 2 × 50 W / 4 Ω with a small heat-sink attached to its top side PowerPAD. All three devices share the same footprint enabling a single PCB to be used across different power levels.
The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences; this 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.
索取更多資訊
具有適用於電池供電系統之低待機功耗（類比輸入）的新一代 30-W 立體聲道 D 類放大器： TPA3128D2
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 | TPA3116D2 15-W, 30-W, 50-W Filter-Free Class-D Stereo Amplifier Family With AM Avoidance datasheet (Rev. G) | PDF | HTML | 2017/12/7 | ||
| 應用說明 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019/8/26 | ||||
| 應用說明 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019/6/27 | ||||
| 應用說明 | TPA31xxDx Bootstrap Circuit Application Report | 2017/11/17 | ||||
| 技術文章 | What are the building blocks of Bluetooth speakers? | PDF | HTML | 2017/2/21 | |||
| 應用說明 | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013/5/1 |
設計與開發
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TPA3118D2EVM — 30-W 立體聲道類比輸入 D 類音訊放大器評估模組
The TPA3118D2 evaluation module showcases TI’s 30-W Stereo Analog Input Class-D Audio Amplifier 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 evaluation module can also (...)
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PMP9491 — 具有高效升壓轉換器的音訊播音器/可攜式喇叭參考設計。
PMP9491 是一款 30W 高效率小巧的可攜式喇叭/音訊播音器參考設計，可用於 15W + 15W 立體聲或 30W 低音揚聲器應用。設計的電源為 1 或 2 節串聯鋰離子。本設計大致分為三個主要階段：
- 採用 LM3481 控制器 IC 的高效率單相非同步升壓轉換器。 此設計接受 3.3Vin 至 9Vin 的輸入電壓，並提供 12V 的輸出，可為負載提供 2.5A 持續電流。 達到的峰值效率為 95%。
- 使用 TPA3118D2 D 類裝置的 15W + 15W 立體聲音訊放大器。
- 超低成本立體聲輸入到低音揚聲器低音輸入轉換。
- 具整合式 MOSFET 和電源路徑選擇器的電池充電器 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (DAP) | 32 | 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。