TPA2008D2
- 3 W Per Channel into 3-
Speakers (THD+N = 10%)
- < 0.045% THD at 1.5 W, 1 kHz, 3- Load
- < 0.045% THD at 1.5 W, 1 kHz, 3-
- DC Volume Control With 2-dB Steps From –38 dB to 20 dB
- Filter Free Modulation Scheme Operates Without a Large and Expensive LC Output Filter
- Extremely Efficient Third Generation 5-V Class-D Technology
- Low Supply Current, 7 mA
- Low Shutdown Control, 1 µA
- Low Noise Floor, –80 dBV
- Maximum Efficiency into 3 , 78%
- Maximum Efficiency into 8 , 88%
- PSRR, –70 dB
- Integrated Depop Circuitry
- Operating Temperature Range, –40°C to 85°C
- Space-Saving, Surface Mount PowerPAD™ Package
- APPLICATIONS
- LCD Projectors
- LCD Monitors
- Powered Speakers
- Battery Operated and Space Constrained Systems
PowerPAD is a trademark of Texas Instruments.
The TPA2008D2 is a third generation 5-V class-D amplifier from Texas Instruments. Improvements to previous generation devices include: dc volume control, lower supply current, lower noise floor, higher efficiency, smaller packaging, and fewer external components. Most notably, a new filter-free class-D modulation technique allows the TPA2008D2 to directly drive the speakers, without needing a low-pass output filter consisting of two inductors and three capacitors per channel. Eliminating this output filter saves approximately 30% in system cost and 75% in PCB area.
The improvements and functionality make this device ideal for LCD projectors, LCD monitors, powered speakers, and other applications that demand more battery life, reduced board space, and functionality that surpasses currently available class-D devices.
A chip-level shutdown control limits total supply current to 1 µA, making the device ideal for battery-powered applications. Protection circuitry increases device reliability: thermal and short circuit. Undervoltage shutdown saves battery power for more essential devices when battery voltage drops to low levels.
The TPA2008D2 is available in a 24-pin TSSOP PowerPAD™ package.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TPA2008D2: 3-W Stereo Class-D Audio Power Amplifier w/DC Vol Control 数据表 (Rev. C) | 2004-5-20 | |||
| 应用手册 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019-8-26 | ||||
| 应用手册 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019-6-27 | ||||
| 应用手册 | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013-5-1 | ||||
| 用户指南 | TPA2008D2EVM - User Guide (Rev. A) | 2004-5-14 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 24 | Ultra Librarian |
订购和质量
推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。