MP7742DF-LF-Z - 2x15W Stereo Class-D Audio Amplifier
部品番号: MP7742DF-LF-Z ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.25928 | $1.26 |
| 10 | $1.2 | $12.00 |
| 100 | $1.1 | $110.00 |
| 500 | $1 | $500.00 |
| 1,000 | $0.97 | $970.00 |
MP7742DF-LF-Z 概要
What is a Class-D audio amplifier? A Class-D amplifier is a switching power amplifier that drives a speaker through a PWM output stage rather than continuously dissipating signal power in a linear output transistor. This topology provides high efficiency and compact integration, making it part of the audio amplifier IC family and broader power-management semiconductor hierarchy. The MP7742 is intended for speaker-driving applications where low board area and integrated protection are valuable.
Verified product information highlights include 15 W per channel at 4 ohms, two-channel stereo operation, Class-D output, integrated 250 mΩ power MOSFETs, startup/shutdown pop elimination, and short-circuit and thermal protection. The package is identified as 20-pin TSSOPF with an exposed pad and tape-and-reel packaging. The datasheet search result also reports a 13-page PDF, but no official manufacturer PDF URL was supplied in the verified data.
Typical applications include compact stereo speakers, portable audio products, consumer audio equipment, USB or powered speaker systems, small multimedia speakers, and auxiliary audio modules. Compared with a linear audio amplifier, the switching Class-D architecture reduces wasted power in the output stage, but correct filtering, thermal design, speaker impedance, and supply decoupling remain essential. A 4-ohm load is explicitly identified for the 15 W-per-channel specification; operation below the datasheet's limits should be avoided.
When designing a board around the MP7742DF-LF-Z, preserve the exposed-pad thermal path and follow the manufacturer layout guidance for power and audio traces. Place input, filter, and output-network components close to their associated pins, and use an appropriately rated speaker and power supply. The verified data does not provide the complete electrical limits, pin names, exact filter values, or recommended operating-voltage range, so those details must be confirmed in the manufacturer datasheet before production release.
ドロップイン代替品: MP7742DF-LF-Z — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MP7742DF-LF-Z （同一形状・フットプリント） — 相違点: Output Power, Integrated Power MOSFET Resistance, Lead-Free Status, Channel Configuration, Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストMP7742DF-LF-Z 最大定格＆電気的特性
| Channel Configuration | 2-channel stereo |
| Amplifier Class | Class D |
| Maximum Output Power | 15 W x 2 at 4 ohm |
| Output Topology | Single-ended Class-D |
| Integrated Power MOSFET Resistance | 250 mΩ |
| Protection Features | Short-circuit protection and thermal protection |
| Startup/Shutdown Feature | Startup/shutdown pop elimination |
| パッケージ | 20-pin TSSOPF exposed-EP |
| 実装タイプ | Surface mount |
| Packaging | Tape and reel |
| ライフサイクル状態 | Active |
| RoHS ステータス | ROHS3 compliant |
| Lead-Free Status | Lead-free |
| Output Power | 15 W per channel at 4 ohm |
| Product Category | Audio amplifier IC |
| Supplier Type | Monolithic Power Systems |
MP7742DF-LF-Z 20-pin tssopf exposed-ep ピン配置ガイド
MP7742DF-LF-Z (20-pin tssopf exposed-ep パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: MP7742DF-LF-Z.
詳細は データシート をご参照ください。
主な用途
MP7742DF-LF-Z の用途: 6 件s: Compact Stereo Speakers, Portable Audio Products, Powered Multimedia Speakers, USB Speaker Systems, Consumer Audio Modules, Small Audio Auxiliary Products.
Compact Stereo Speakers
The MP7742DF-LF-Z fits compact stereo speakers that require two amplified channels in a small board area. Its verified 2 x 15 W rating at 4 ohms provides a clear output-power target for small desktop or multimedia speakers, while the Class-D architecture avoids the larger output-stage area typical of many linear amplifiers. The design must still provide the recommended output filter, stable supply decoupling, speaker protection, and thermal copper under the exposed pad. Because the exact pinout and recommended PCB land pattern are not included in the supplied data, layout should follow the exact manufacturer datasheet.
おすすめ
Portable Audio Products
The MP7742DF-LF-Z is suitable for portable audio products where speaker output power and board area matter. Its integrated power MOSFETs, short-circuit protection, and thermal protection reduce the amount of external output circuitry, while the 2 x 15 W capability can serve compact stereo formats. Battery-powered systems should be evaluated with the complete datasheet because the verified data does not state minimum supply voltage, idle current, or efficiency. Use a stable supply and confirm speaker impedance before committing to the device.
おすすめ
Powered Multimedia Speakers
The MP7742DF-LF-Z can serve powered multimedia speakers requiring a compact stereo amplifier section. A 4-ohm speaker load aligns with the verified 15 W-per-channel specification, and the integrated protections make the device appropriate for systems where accidental shorts or thermal stress may occur. The board should include input filtering, EMI-conscious switching layout, and adequate thermal spreading beneath the exposed pad. Exact crossover, filter, and supply recommendations are not present in the verified snippets and must be taken from the manufacturer documentation.
おすすめ
USB Speaker Systems
The MP7742DF-LF-Z is appropriate for USB speaker systems where a digital audio source is followed by a compact stereo output stage. Its Class-D topology can reduce heat and board size relative to a comparable linear design, while pop elimination improves perceived startup behavior. A USB audio DAC or codec can feed the amplifier through appropriately scaled analog inputs. The supplied data does not include input impedance, gain settings, frequency response, or reference schematics, so those values must be verified before selecting the external signal chain.
おすすめ
Consumer Audio Modules
The MP7742DF-LF-Z can be used in compact consumer audio modules requiring integrated stereo speaker drive and protection. The 20-pin TSSOPF exposed-EP package supports surface-mount assembly, while startup/shutdown pop elimination helps reduce audible transients. Design engineers should validate speaker impedance, power-supply headroom, thermal performance, and output-filter stability for each module. The verified data does not provide a manufacturer reference design, so the module layout should be derived from the exact MP7742DF-LF-Z datasheet rather than from a generic Class-D layout.
おすすめ
Small Audio Auxiliary Products
The MP7742DF-LF-Z is suitable for small auxiliary audio products that need more output power than a conventional line-level amplifier can provide. Two integrated Class-D channels can drive matched stereo speakers, and the integrated protections reduce dependence on external protection circuitry. Applications may include accessory speakers, compact docking systems, and low-power audio add-ons. The exact minimum supply voltage, quiescent current, gain configuration, and output-filter component values are not available in the verified web results and require datasheet confirmation before implementation.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MP7742DF-LF-Z — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Package | 20-pin TSSOPF exposed-EP |
| Brand | Monolithic Power Systems |
| Channel Configuration | 2-channel stereo |
| Amplifier Class | Class D |
| Output Power | 2 x 15 W at 4 ohm |
| Integrated MOSFET Resistance | 250 mΩ |
| Protection | Short-circuit and thermal protection |
| Startup/Shutdown | Startup/shutdown pop elimination |
主な差別化要因
- Integrated 2 x 15 W Class-D stereo output （vs MP7745DF-LF)
- Built-in speaker-drive protection （vs MP7722DF-LF)
- Pop-control feature set （vs MP7745DF-LF)
設計ノート
Treat the exposed pad as the primary thermal path. Estimated: at 2 x 15 W output into 4 ohms, the combined output power is 30 W, but the actual internal dissipation cannot be calculated without efficiency, supply voltage, and quiescent data. Use the manufacturer thermal information and provide uninterrupted copper beneath the exposed pad, with thermal vias placed according to the package drawing.
Keep Class-D switching loops compact and keep audio input traces away from output switching nodes. Place input filtering, supply bypass, and output-filter components close to their associated pins. The verified data confirms a 20-pin TSSOPF exposed-EP package but does not provide exact land-pattern dimensions; use the official package drawing and reference layout rather than a generic TSSOP footprint.
Validate the supply voltage and speaker impedance against the exact datasheet before production. The verified rating is 15 W per channel into 4 ohms, and the amplifier includes short-circuit and thermal protection, but protection does not permit operation outside the rated load or supply limits. Use local bulk and high-frequency decoupling and confirm startup behavior in the complete system.
コンプライアンス情報
The verified listing states ROHS3 compliant and lead-free. REACH, halogen-free status, and conflict-minerals documentation are not provided.
