TPA2005D1
- 1.4 W Into 8 Ω From a 5 V Supply at THD = 10% (Typ)
- Maximum Battery Life and Minimum Heat
- Efficiency With an 8-Ω Speaker:
- 84% at 400 mW
- 79% at 100 mW
- 2.8-mA Quiescent Current
- 0.5-μA Shutdown Current
- Efficiency With an 8-Ω Speaker:
- Capable of Driving an 8-Ω Speaker (2.5 V ≤ VDD ≤ 5.5 V) and a 4-Ω Speaker (2.5 V ≤ VDD ≤ 4.2 V)
- Only Three External Components
- Optimized PWM Output Stage Eliminates LC Output Filter
- Internally Generated 250-kHz Switching Frequency Eliminates Capacitor & Resistor
- Improved PSRR (–71 dB at 217 Hz) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator
- Fully Differential Design Reduces RF Rectification & Eliminates Bypass Capacitor
- Improved CMRR Eliminates Two Input Coupling Capacitors
- Space Saving Package
- 3 mm × 3 mm QFN package (DRB)
- 2.5 mm × 2.5 mm MicroStar Junior BGA Package (ZQY)
- 3 mm x 5 mm MSOP PowerPAD Package (DGN)
- Use TPA2006D1 for 1.8 V Logic Compatibility on Shutdown Pin
All trademarks are the property of their respective owners.
The TPA2005D1 is a 1.4-W high efficiency filter-free class-D audio power amplifier in a MicroStar Junior™ BGA, QFN, or MSOP package that requires only three external components.
Features like 84% efficiency, –71-dB PSRR
at 217 Hz, improved RF-rectification immunity, and
15 mm2 total PCB area make the TPA2005D1 ideal for cellular
handsets. A fast start-up time of 9 ms with minimal pop makes the TPA2005D1 ideal for PDA
applications.
In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2005D1. The device allows independent gain control by summing the signals from each function while minimizing noise to only 48 μVRMS.
The TPA2005D1 has short-circuit and thermal protection.
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 | TPA2005D1 1.4-W MONO Filter-Free Class-D Audio Power Amplifier datasheet (Rev. G) | PDF | HTML | 2015/10/27 | ||
| 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 | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013/5/1 | ||||
| 應用說明 | Measuring Class-D Amplifiers for Audio Speaker Overstress Testing | 2005/10/28 | ||||
| 應用說明 | Power Rating in Audio Amplifier (Rev. A) | 2005/3/4 | ||||
| 使用指南 | TPA2005D1EVM - User Guide | 2002/6/27 |
設計與開發
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TPA2005D1EVM — TPA2005D1 評估模組 (EVM)
The TPA2005D1 is a 1-W high efficiency filter-free class-D audio power amplifier in a MicroStar™ BGA package that requires only three external components. It is ideal for small battery operated electronics including wireless or cellular handsets, personal digitalassistants (PDAs), and voice (...)
TIDA-010040 — 警報音產生器參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HVSSOP (DGN) | 8 | Ultra Librarian |
| VSON (DRB) | 8 | 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。