MP1740EC-LF-Z - 3W Mono Class-D Amplifier | MPS
部品番号: MP1740EC-LF-Z ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MP1740EC-LF-Z 概要
A Class-D audio amplifier is a switching amplifier that uses an H-bridge to deliver energy to a speaker with high efficiency compared with a conventional linear Class-AB amplifier. The MP1740 is intended for mono audio signal paths where a small speaker load must be driven from a compact integrated circuit. Its switching output stage reduces wasted power during audio playback, which is particularly useful in portable speakers, personal audio products, and compact consumer equipment. The 9-WLCSP footprint also supports dense PCB layouts when component area is limited.
The main verified parameters are 3 W output power into a 4 ohm speaker, mono Class-D operation, a full-bridge H-bridge architecture, 91% efficiency, and a 1.55 mm by 1.55 mm 9-WLCSP package. The verified sources also identify the part as a one-channel audio amplifier IC. Detailed electrical limits, gain settings, input impedance, output configuration, protection behavior, thermal limits, and pin assignments are not included in the supplied data and must be confirmed from the manufacturer datasheet before design release.
The device is best suited to portable speakers, compact Bluetooth speaker systems, small consumer audio products, and low-power mono audio nodes. In these applications, the amplifier converts an analog audio signal into a full-bridge Class-D output for the connected speaker. The verified 91% efficiency figure indicates a favorable power-conversion characteristic, but actual battery life depends on the complete system, load impedance, output level, thermal environment, and PCB layout.
Designers should pay particular attention to the tiny WLCSP footprint, speaker connection, input routing, bypass capacitors, power-supply stability, and thermal performance. Because the available evidence does not provide a complete pinout or application-circuit parameters, consult the official MP1740EC datasheet for pin names, exposed-pad requirements, recommended inductors or capacitors, input configuration, output filtering, and maximum operating conditions.
This product page synthesizes verified distributor and manufacturer-linked descriptions with application guidance and identifies where additional datasheet data is required. The MP1740EC-LF-Z should not be treated as a complete electrical substitute until package, pin, gain, protection, and thermal compatibility have been independently checked.
ドロップイン代替品: MP1740EC-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: MP1740EC-LF-Z （同一形状・フットプリント）.
クイック比較ツール — 並列比較する代替部品を選択:
MP1740EC
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MP1740EC-LF-Z 最大定格＆電気的特性
| Product Type | Mono Class-D audio amplifier IC |
| Output Power | 3 W into 4 ohm speaker |
| Distributor-Rated Power | 3.62 W |
| Channel Count | 1 channel, mono |
| Output Architecture | Full-bridge Class-D H-bridge |
| 効率 | 91% |
| Package Type | 9-WLCSP |
| Package Dimensions | 1.55 mm x 1.55 mm |
| Load Impedance | 4 ohm speaker |
| 実装タイプ | Surface Mount |
| Amplifier Class | Class D |
| Audio Fidelity Description | Class-AB-like fidelity |
MP1740EC-LF-Z 1.55 mm x 1.55 mm ピン配置ガイド
MP1740EC-LF-Z (1.55 mm x 1.55 mm 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: MP1740EC-LF-Z.
詳細は データシート をご参照ください。
主な用途
MP1740EC-LF-Z の用途: 6 件s: Portable Bluetooth Speaker, Compact Desktop Speaker, Battery-Powered Personal Audio, USB-Cowered Desktop Audio, IoT Notification Speaker, Consumer Appliance Audio Feedback.
Portable Bluetooth Speaker
The MP1740EC-LF-Z fits a compact Bluetooth speaker that needs a mono Class-D output stage driving a 4 ohm speaker. Its verified 3 W capability provides a practical output class for small portable enclosures, while the reported 91% efficiency helps reduce amplifier-stage power loss. The 1.55 mm x 1.55 mm 9-WLCSP package supports dense layouts where the speaker, codec, and power-management circuitry share limited board area. Confirm supply voltage, speaker impedance, peak current, and output-filter requirements from the manufacturer datasheet before finalizing the design.
おすすめ
Compact Desktop Speaker
The MP1740EC-LF-Z is appropriate for a compact desktop or shelf speaker using one speaker and a mono Class-D output stage. The verified 4 ohm, 3 W load capability makes it suitable for small consumer speaker systems where a larger linear amplifier would waste power as heat. The small WLCSP package helps reduce board area, but its assembly and land-pattern requirements must be confirmed. Power-supply decoupling, speaker wiring, thermal margin, and EMI behavior should be evaluated in the complete enclosure.
おすすめ
Battery-Powered Personal Audio
The MP1740EC-LF-Z can serve the audio output section of a battery-powered personal-audio product when a single 4 ohm speaker and roughly 3 W of rated output are sufficient. Its verified 91% efficiency is the main reason to consider it in a portable design: less energy is wasted in the Class-D output stage than in a comparable linear amplifier. Actual battery life remains dependent on average listening level, idle behavior, amplifier losses, and the rest of the system power budget.
おすすめ
USB-Cowered Desktop Audio
The MP1740EC-LF-Z can be evaluated for a USB-powered compact audio product when the verified 3 W into 4 ohm capability matches the selected speaker. The small package leaves space for USB interface, protection, and mechanical components in a compact enclosure. Because the supplied data does not identify the operating supply range, input impedance, or peak output current, the USB power budget must be checked against the official datasheet before selecting a supply and output-filter network.
おすすめ
IoT Notification Speaker
The MP1740EC-LF-Z may be used in an IoT notification or assistant speaker that produces prompts through a small 4 ohm transducer. The verified mono Class-D architecture keeps the signal path focused, and the reported 91% efficiency is useful when the device operates from a limited power budget. The design must still address startup behavior, supply noise, EMI, speaker wiring, and thermal performance. If the notification speaker requires high intelligibility across a broad frequency range, the unverified gain and frequency-response details must be checked first.
おすすめ
Consumer Appliance Audio Feedback
The MP1740EC-LF-Z can be considered for a compact consumer appliance that uses a single speaker for prompts, tones, or simple audio feedback. A 3 W mono output is generally compatible with small speaker loads, while the 1.55 mm x 1.55 mm 9-WLCSP package supports constrained board layouts. The amplifier must be evaluated for electromagnetic emissions, speaker-induced transients, supply disturbance, and enclosure acoustics. Confirm the exact pinout, protection functions, and recommended application circuit in the MP1740EC datasheet.
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: MP1740EC-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 | MP1740EC |
|---|---|---|
| Product Type | Mono Class-D audio amplifier | Mono Class-D audio amplifier family device |
| Channel Count | 1 channel | 1 channel, family-level confirmation required |
| Output Architecture | Full-bridge H-bridge | Full-bridge H-bridge, family-level confirmation required |
| Package | 9-WLCSP, 1.55 mm x 1.55 mm | 9-WLCSP, exact suffix and footprint confirmation required |
| Mounting Type | Surface Mount | Surface Mount |
| Brand | Monolithic Power Systems | Monolithic Power Systems |
主な差別化要因
- High reported switching efficiency （vs MP1740EC)
- Compact board footprint （vs MP1740EC)
- Defined 4 ohm speaker use case （vs MP1740EC)
設計ノート
Because the verified package is a 9-WLCSP measuring 1.55 mm by 1.55 mm, treat PCB land-pattern design and assembly capability as release-critical. Verify the official package drawing, pin-one orientation, solder-mask and paste recommendations, exposed-pad or thermal-pad requirements, and reflow profile before layout signoff. Do not infer the footprint from the distributor search result alone.
The verified device is rated for 3 W into a 4 ohm speaker, but the available supply range and peak current are not provided. Select the power source only after checking the manufacturer datasheet for minimum operating voltage, output-current limits, startup behavior, and thermal derating. Add local input decoupling and route high-current output paths with adequate copper and via capacity for the selected load.
Keep the Class-D power-loop area small and separate sensitive audio-input routing from switching-node and speaker-output paths. The supplied data does not specify the recommended LC filter, so use the official MP1740EC application circuit rather than guessing component values. Confirm grounding, speaker return routing, and EMI filtering against the final enclosure and cable configuration.
Do not treat the search-snippet rating as a complete electrical specification. In particular, the 3 W and 91% figures may depend on test conditions, and the distributor listing also shows a 3.62 W description. Verify gain, input impedance, supply limits, pin functions, protection behavior, thermal limits, and output filtering before making a drop-in or production substitution.
コンプライアンス情報
Compliance information was not included in the supplied verified web data. AEC-Q100 is marked not_applicable only because this part is presented as a consumer audio amplifier and no automotive qualification evidence was supplied; this is not an assertion of automotive compliance.
