TPA3128D2
- 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.
技術文件
| 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
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| 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
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
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。