MP7720DS-LF - 20W Mono Class-D Audio Amplifier | MPS
部品番号: MP7720DS-LF ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.99 | $1.99 |
| 10 | $1.79 | $17.90 |
| 100 | $1.49 | $149.00 |
| 500 | $1.19 | $595.00 |
| 1,000 | $0.99 | $990.00 |
MP7720DS-LF 概要
A Class-D audio amplifier is a switching power amplifier that delivers audio through rapidly switched output transistors. Within the amplifier hierarchy, the MP7720 is an integrated audio power amplifier and power-management IC rather than a low-power signal amplifier. Its efficiency-oriented Class-D topology can deliver substantial audio output while reducing heat relative to a linear amplifier when operated within the manufacturer’s specified electrical and thermal limits.
The MP7720’s primary verified specifications are 20W output power, a 9.5V to 24V supply range, and one mono channel. Its integrated 180mΩ power MOSFETs reduce the need for external output transistors. Additional functions include startup and shutdown pop elimination, short-circuit protection, and mute or standby operation. These features make the device relevant to mono speakers, compact consumer audio products, powered speakers, sound bars, and auxiliary audio modules.
Technically, the single-ended output topology supports a compact implementation without requiring a full-bridge output stage. Short-circuit protection improves resilience when a speaker wiring fault occurs, while mute and standby provide external control for quiet power management. The manufacturer identifies the MP7720 as a second-generation fully integrated audio amplifier, emphasizing its integration of the power stage and control functions.
Typical applications include powered speakers, compact stereo systems using one channel per module, sound bars, portable or dock-based speakers, and industrial audio products with a single speaker. The 24V upper supply limit is a key design constraint; higher-voltage amplifier modules are not automatically suitable replacements. Speaker impedance, output-filter selection, supply decoupling, thermal performance, and control sequencing must be checked against the manufacturer datasheet.
For PCB design, keep input, supply, output, and ground paths compact and route power-current loops with low resistance. The switching output requires an appropriate EMI-conscious layout and the prescribed LC output filtering. Verify thermal rise at worst-case supply, load, and ambient conditions because a stated 20W capability does not remove board-level heat dissipation requirements.
This page consolidates verified manufacturer and distributor information, pricing availability, replacement evidence, and practical implementation guidance for engineers evaluating the MP7720DS-LF.
ドロップイン代替品: MP7720DS-LF — 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: MP7720DS-LF （同一形状・フットプリント） — 相違点: Channel Configuration, Lead-Free Status, Output Power, Package, Product Type.
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MP7720DS-LF 最大定格＆電気的特性
| Amplifier Type | Class-D audio power amplifier |
| Channel Configuration | 1 channel (mono) |
| Output Power | 20 W |
| 電源電圧 | 9.5 V to 24 V |
| Output Topology | Single-ended |
| Power MOSFET On-Resistance | 180 mΩ |
| 動作温度 | -40°C to +85°C |
| パッケージ | 8-pin SOIC |
| 実装タイプ | Surface mount |
| Startup and Shutdown | Pop elimination |
| Fault Protection | Short-circuit protection |
| Control Function | Mute or standby |
| Power Stage Integration | Integrated power MOSFETs |
| Product Generation | Second-generation fully integrated audio amplifier |
| RoHS ステータス | Compliant |
| Lead-Free Status | Lead-free plastic package |
| DigiKey Availability Statement | Buy now, ships today |
MP7720DS-LF 8-pin soic ピン配置ガイド
MP7720DS-LF (8-pin soic 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: MP7720DS-LF.
詳細は データシート をご参照ください。
主な用途
MP7720DS-LF の用途: 6 件s: Powered Mono Speaker, Compact Stereo Audio System, Sound Bar Speaker Module, USB or Docking Speaker, Industrial Audio Annunciator, Portable Audio Dock.
Powered Mono Speaker
The MP7720DS-LF fits a powered speaker because it is a verified 20W, mono, single-ended Class-D amplifier with an 8-SOIC package and a 9.5V-to-24V supply range. Place the integrated amplifier stage close to the speaker terminals and use the manufacturer-prescribed output filtering to keep switching energy out of the acoustic path. The 180mΩ power MOSFET integration reduces external power-stage count. Because the supplied data does not state a verified speaker impedance, engineers must confirm that value and the associated output-power conditions in the full datasheet before selecting the PCB and speaker.
おすすめ
Compact Stereo Audio System
A compact stereo system can use one MP7720DS-LF channel per speaker, using the device’s verified mono, 20W, single-ended output architecture for each side. The 8-SOIC format supports a relatively small mixed-signal layout, while integrated short-circuit protection and mute or standby control simplify system behavior. Supply noise, channel-to-channel gain matching, thermal rise, and EMI filtering must be evaluated together. The supplied material does not verify input gain, channel mismatch, THD+N, or thermal resistance, so those values should be taken from the manufacturer test conditions rather than assumed.
おすすめ
Sound Bar Speaker Module
The MP7720DS-LF is applicable to a sound-bar speaker module requiring a mono 20W Class-D output stage with control and protection integration. Its single-ended topology, 9.5V-to-24V supply range, startup and shutdown pop elimination, mute or standby, and short-circuit protection are directly relevant to consumer audio systems that need controlled startup and fault handling. Place the switching output and LC filter away from sensitive input and control traces, then verify EMI behavior in the finished enclosure. The full datasheet is required for filter selection, output impedance, and thermal derating.
おすすめ
USB or Docking Speaker
A USB or docking speaker can benefit from the MP7720DS-LF when its system supply remains inside the verified 9.5V-to-24V range. The integrated power stage, mute or standby function, and pop elimination help simplify enclosure designs where predictable startup and shutdown are important. The amplifier must be paired with an appropriate analog audio source and output filter, and its switching supply and output return paths should be routed to minimize audible or radiated interference. The supplied data does not verify battery-current behavior or low-voltage operation, so a battery-powered design should not assume regulation below 9.5V.
おすすめ
Industrial Audio Annunciator
The MP7720DS-LF can serve as the power-amplifier stage in an industrial audio annunciator when a single 20W speaker output is sufficient. Its short-circuit protection and mute or standby controls are useful in equipment where an external fault or shutdown request may occur, while the -40°C to +85°C operating range covers many industrial environments. EMI control is especially important when the speaker wiring is long or exits the enclosure. The verified sources do not provide the required load impedance, protection timing, or thermal derating, so those items must be checked before qualification.
おすすめ
Portable Audio Dock
The MP7720DS-LF is a candidate for a portable audio dock when an external adapter can provide the required 9.5V-to-24V amplifier supply. Its integrated 180mΩ power MOSFETs reduce board-level output-stage complexity, and startup or shutdown pop elimination supports cleaner docking transitions. The designer must budget regulator headroom, output-filter loss, speaker loading, copper area, and thermal rise; the verified 20W figure alone does not guarantee uninterrupted 20W operation in a small enclosure. Confirm absolute maximum voltage and recommended operating conditions in the official datasheet before layout release.
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: MP7720DS-LF — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
主な差別化要因
- Integrated 20W mono Class-D power stage （vs MAX98357AETE+T)
- Built-in protection and control functions （vs MAX98090AEWJ+T)
- Wide verified supply range for fixed-voltage systems （vs MP7740DN-LF)
設計ノート
The verified supply range is 9.5V to 24V. Confirm the supply tolerance, startup ramp, local decoupling, and any regulator headroom before connecting the amplifier. Keep the high-current output return path short and preserve the recommended ground topology around the 8-SOIC device. Do not infer that a 24V nominal rail is automatically safe if transient overshoot exceeds the manufacturer absolute maximum rating.
Class-D output nodes switch rapidly and can create radiated and conducted emissions. Route the power loop and output filter according to the manufacturer’s recommended layout, keep sensitive audio inputs away from switching nodes, and provide local supply bypassing. Validate the completed PCB with the intended speaker cable, enclosure, supply, and load because EMI performance is system-dependent and the supplied excerpts do not provide filter values or switching frequency.
The part is specified as a 20W Class-D amplifier, but allowable continuous output also depends on supply voltage, load impedance, PCB copper, ambient temperature, and the manufacturer’s thermal limits. Estimate worst-case dissipation in the enclosure, measure the amplifier temperature during maximum playback, and reduce output or improve copper area if the thermal budget is exceeded. The supplied data does not include thermal resistance or derating curves, so those figures must not be inferred from the 20W headline rating.
Do not substitute a similarly named MP7720DS-LF-Z or MP7740DN-LF solely because a comparison page exists. Verify all eight package terminals, supply limits, output topology, load requirements, mute and standby logic, protection behavior, and output-filter requirements against the official datasheet. The verified data confirms the target’s 8-SOIC package and core 20W mono Class-D function, but it does not establish unqualified pin compatibility for any alternative.
コンプライアンス情報
The supplied DigChip result identifies the part as RoHS compliant and describes a lead-free plastic package. No verified REACH, AEC-Q100, halogen-free, or conflict-minerals declaration was supplied.