TPA3116D2
- 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.
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 | ||
| Application brief | How to Switch From an Analog Input Device to a Digital Input Device | PDF | HTML | 2021/10/26 | |||
| 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 | ||||
| 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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TPA3116D2EVM — 50W 立體聲道類比輸入 D 類音訊放大器評估模組
The TPA3116D2 evaluation module showcases TI’s 50-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 (...)
PMP9484 — 具升壓轉換器的高效率小巧 100-W 汽車放大器參考設計
PMP9484 是一款 100W 高效率且精巧的車用放大器參考設計，可用於 50W +50W 立體聲或 100W 低音揚聲器應用。 本設計大致分為三個主要階段：
1.) 採用 LM5122 控制器 IC 的高效率單相同步升壓轉換器。 此設計接受 7.5Vin 至 20Vin 的輸入電壓（額定 12Vin），並提供 24V 的輸出，可為負載提供 5A 連續電流。 達到的峰值效率為 98%。
2.)使用 TPA3116D2 D 類裝置的 50W + 50W 立體聲音訊放大器
3.)超低成本立體聲輸入到低音揚聲器低音輸入轉換
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 (DAD) | 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。