MP7742DF-LF-Z - 2x15W Stereo Class-D Audio Amplifier
부품 번호: MP7742DF-LF-Z ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 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 개요
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.
드롭인 대체품: MP7742DF-LF-Z — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MP7742DF-LF-Z (동일 폼 팩터 및 풋프린트) — 차이점: Output Power, Integrated Power MOSFET Resistance, Lead-Free Status, Channel Configuration, Operating Temperature.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청MP7742DF-LF-Z 최대 정격 & 전기적 특성
| 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 |
| 패키지 | 20-pin TSSOPF exposed-EP |
| 실장 유형 | Surface mount |
| Packaging | Tape and reel |
| 수명 주기 상태 | Active |
| RoHS 상태 | 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 핀 구성 가이드
MP7742DF-LF-Z(20-pin tssopf exposed-ep 패키지)의 핀 구성입니다. 이 아날로그 부품에는 입력, 출력, 전원 공급 핀이 있습니다. 오프셋 널, 보상, 인에이블 핀 구성은 제조사 데이터시트를 참조하십시오. 신호 컨디셔닝 및 증폭기 회로에 이상적입니다.
다음에 대한 상세 핀아웃 데이터 없음: MP7742DF-LF-Z.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
MP7742DF-LF-Z 적합 용도: 6 애플리케이션s: 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.
추천
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.
추천
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.
추천
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.
추천
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.
추천
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.
추천
추천 제품 요약
엔지니어링 참조 데이터: MP7742DF-LF-Z — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| 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 |
주요 차별점
- 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)
설계 노트
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.
규정 준수 정보
The verified listing states ROHS3 compliant and lead-free. REACH, halogen-free status, and conflict-minerals documentation are not provided.
