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
概覽
PMP9491 is a 30W highly efficient and compact Portable Speaker/Audio Boom Box reference Design which can be used in 15W +15W Stereo or 30W Woofer Applications. The Power Source for the Design is 1 or 2 Li ion in Series . The design is broadly divided into three main stages:
- Highly efficient Single-Phase Non Synchronous Boost Converter using the LM3481 controller IC. The design accepts an input voltage of 3.3Vin to 9Vin and provides an output of 12 V capable of supplying 2.5A of continuous current to the load. The peak efficency acheived is 95 percent .
- 15W+15W Stereo Audio Amplifier with TPA3118D2 Class D device.
- Very Low Cost Stereo Inputs to Woofer Bass Input Conversion.
- Battery Charger bq24133 , 2.5A Synchronous Switch-Mode Li-Ion/Li-Polymer Stand-Alone Battery Charger with Integrated MOSFETs and Power Path Selector.
特點
- Low Cost Non Synchronous Boost for Audio Boom Box application.
- Ultra Low Footprint Area for LM3481 Actual Power Stage
- Single Speaker (Woofer), Dual Speaker(Stereo) Support in the design
- Low Vin Support for Single as well as Dual Li ion Battery support
- 100-kHz to 1-MHz Adjustable / Synchronizable Clock Frequency and limits the inrush current at start-up.
- Battery Charger with Dynamic Power Path management
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
設計檔案與產品
設計檔案
下載立即可用的系統檔案以加速您的設計流程。
產品
設計與潛在替代方案中包括 TI 產品。
技術文件
=
TI 所選的重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 2
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 測試報告 | PMP9491 Test Results | 2015/2/26 | |||
| 技術文章 | Portable speaker power: Making the bass possible | PDF | HTML | 2015/5/12 |