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
概覽
PMP9484 is a 100W highly efficient and compact automotive amplifier reference design which can be used in 50W +50W stereo or 100W woofer applications. The design is broadly divided into three main stages:
1.) Highly efficient single-phase synchronous boost converter using the LM5122 controller IC. The design accepts an input voltage of 7.5Vin to 20Vin (12Vin nominal) and provides an output of 24V capable of supplying 5A of continuous current to the load. The peak efficiency acheived is 98 percent.
2.) 50W+ 50W stereo audio amplifier with TPA3116D2 Class D device
3.) Very low cost stereo input to woofer bass input conversion
特點
- Synchronous rectification in boost for very high efficiency
- Ultra-low footprint area for LM5122
- Actual power stage combo with highly efficient class D amplifier
- Single speaker (woofer), dual speaker (stereo) support in the design
- Low Vin support for automotive application
| 輸出電壓選項 | PMP9484.1 |
|---|---|
| Vin (最小值) (V) | 6.5 |
| Vin (最大值) (V) | 20 |
| Vout (Nom) (V) | 24 |
| Iout (最大) (A) | 5 |
| 輸出功率 (W) | 120 |
| 隔離式/非隔離式 | Non-Isolated |
| 輸入類型 | DC |
| 拓撲結構 | Boost- Synchronous |
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。
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| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 測試報告 | PMP9484 Test Results | 2014/9/29 |