MP7740DN-LF-Z - 15W Mono Class-D Audio Amplifier | MPS
N.º da peça: MP7740DN-LF-Z ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
MP7740DN-LF-Z Visão geral
A Class-D audio amplifier is a switching power amplifier that delivers audio energy through rapidly alternating output voltages. In the broader hierarchy, it is an audio amplifier, analog signal-processing IC, power-management semiconductor, and surface-mount device. Compared with a conventional linear amplifier, the MP7740 architecture is intended to reduce wasted power and heat while retaining the signal path required for compact speaker systems.
The verified manufacturer information identifies 15W output power, 250mΩ integrated power MOSFETs, startup and shutdown pop-elimination circuitry, and short-circuit protection. The 8-SOICE package and integrated power stage can simplify a mono speaker amplifier implementation compared with a discrete MOSFET output stage. A 4Ω speaker load is explicitly supported by the single-ended output structure, while the exact thermal and layout limits must be taken from the manufacturer datasheet.
The MP7740 is positioned for portable or compact audio products where speaker drive current, board area, and startup behavior matter. It can be used in consumer speaker designs, portable audio equipment, soundbars, and auxiliary audio modules, provided the supply voltage, speaker impedance, thermal conditions, and input signal levels match the device specifications. The absence of a verified switching-frequency value, gain setting, and exact pin-level application circuit in the supplied data prevents adding unconfirmed parameters.
Designers should pay particular attention to the exposed thermal pad, copper area, supply decoupling, output filtering, and speaker-load wiring. The integrated protection circuit is useful, but it does not remove the need for correct layout and thermal management. Because the target is a single-ended mono amplifier, system-level headroom and filter selection should be evaluated together with the speaker impedance rather than treated as independent choices.
This page consolidates the verified manufacturer and distributor information for MP7740DN-LF-Z, including the 15W Class-D architecture, supply range, package information, sourcing links, and engineering-focused selection guidance. It does not invent pricing, pin functions, electrical limits, or drop-in replacements that were not confirmed by the supplied records.
Alternativas drop-in para MP7740DN-LF-Z — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MP7740DN-LF-Z (mesmo formato e footprint) — diferindo em Channel Configuration, Lead-Free Status, Output Power, Package, Product Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MP7720DS-LF
✅ Drop-In✓ Em estoque
$0.99 / unidade
Ver ficha técnica →MP7740DN-LF-Z Classificações máximas e características elétricas
| Product Type | Mono Class-D audio amplifier |
| Channel Configuration | 1-channel mono |
| Rated Output Power | 15 W into 4 ohm |
| Supply Voltage Range | 9.5 V to 36 V |
| Integrated Power MOSFET Resistance | 250 mOhm |
| Output Architecture | Single-ended output |
| Short-Circuit Protection | Integrated |
| Startup/Shutdown Pop Elimination | Integrated |
| Faixa de temperatura de operação | -40 C to +85 C |
| Package Type | SOIC-8 with exposed pad |
| Package Designation | 8-SOICE |
| Tipo de montagem | Surface mount |
| Power-MOSFET Integration | Integrated power MOSFETs |
Guia de Configuração de Pinos do MP7740DN-LF-Z 8-soice
Configuração de pinos para MP7740DN-LF-Z (pacote 8-soice). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para MP7740DN-LF-Z.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
MP7740DN-LF-Z é adequado para 6 aplicaçãos: Compact 4Ω Speaker Amplifier, Portable Audio Product, Soundbar Speaker Module, Consumer Electronics Speaker Driver, USB-Powered Audio Accessory, Industrial Audio Annunciator.
Compact 4Ω Speaker Amplifier
The MP7740DN-LF-Z fits a compact mono speaker module requiring up to 15W into a 4Ω load from a 9.5V-to-36V supply. Its integrated 250mΩ power MOSFETs remove the need for a separate discrete output stage in the basic architecture, while the single-ended output keeps the signal path direct. The integrated short-circuit protection is useful in portable equipment where speaker wiring faults are possible. Designers should preserve the exposed-pad thermal path, use short supply connections, and verify the actual output level and temperature rise in the final enclosure. The available records confirm the 15W and 4Ω capability but do not provide a closed-loop gain value, switching frequency, or detailed filter values.
Recomendado
Portable Audio Product
For battery-derived portable audio, MP7740DN-LF-Z offers a 15W mono Class-D output architecture that can be paired with a suitable regulator and speaker. The 9.5V-to-36V operating range provides design flexibility for systems using multiple cells or a boosted internal rail. The integrated MOSFETs and protection circuits help reduce external component count, which is valuable when board area is limited. The key engineering trade-off is thermal management: a Class-D stage reduces switching loss relative to a linear output stage, but output-current capability still depends on copper area, ambient temperature, speaker impedance, and continuous musical duty cycle. The exact battery regulator and protection-network recommendations require application-specific validation.
Recomendado
Soundbar Speaker Module
MP7740DN-LF-Z can serve as the mono low-volume amplifier channel in a compact soundbar or auxiliary speaker enclosure. Its single-ended output and integrated power MOSFETs simplify the local amplifier section, while startup and shutdown pop-elimination circuitry helps reduce audible transients during channel changes. The 15W rating gives system designers a clear target for a 4Ω driver, although the final acoustic output can be limited by supply droop, thermal conditions, and speaker sensitivity. Use the manufacturer datasheet for pin mapping and application filtering, and test the amplifier with the intended speaker cable because long or poorly terminated speaker wiring can increase transient stress.
Recomendado
Consumer Electronics Speaker Driver
The MP7740DN-LF-Z is appropriate for consumer products where one mono speaker channel is sufficient and a 4Ω load is expected. Its integrated 15W Class-D stage can reduce the number of external power components compared with a discrete MOSFET amplifier, and the SOIC-8 package supports conventional surface-mount assembly. The design should include stable supply decoupling, a deliberate ground return, and an exposed-pad copper pattern that follows the manufacturer recommendation. Since the supplied data does not state the exact gain, modulation method, EMI performance, or thermal resistance, engineers should not infer those values from the generic Class-D category and should validate them against the official datasheet.
Recomendado
USB-Powered Audio Accessory
A USB-powered or externally regulated audio accessory can use MP7740DN-LF-Z when the selected supply can maintain the required 9.5V minimum operating voltage and support the intended speaker output level. The integrated Class-D output stage is useful when a small enclosure leaves little room for discrete circuitry, and its 4Ω 15W target is well suited to a compact driver. USB power availability, inrush behavior, ground isolation, and thermal rise must be checked before advertising full power. The supplied records do not verify a USB-specific reference design or regulator value, so the final design should use system-level measurements rather than assuming universal compatibility.
Recomendado
Industrial Audio Annunciator
MP7740DN-LF-Z can be evaluated for compact industrial audio annunciators or equipment speaker modules that need a mono 4Ω driver and a protected amplifier stage. The integrated short-circuit protection can improve robustness in equipment where the speaker or cable may be exposed to accidental faults. The wide 9.5V-to-36V supply range can simplify adaptation to industrial DC buses, subject to the device's exact operating limits. Industrial use also requires attention to conducted and radiated emissions, enclosure acoustics, cable routing, and the operating-temperature range of -40°C to +85°C. EMC qualification and long-term reliability testing should be performed on the complete product rather than inferred from the amplifier alone.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MP7740DN-LF-Z — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MP7720DS-LF |
|---|---|---|
| Package | 8-SOICE | SOIC-8 with exposed pad listed in comparison search |
| Brand | Monolithic Power Systems | Monolithic Power Systems |
| Product Type | Mono Class-D audio amplifier | Mono Class-D audio amplifier |
Principais diferenciais
- Integrated 15W mono Class-D output stage (vs MP7720DS-LF)
- Wide supply range for compact power systems (vs MP7720DS-LF)
- Integrated protection and startup behavior (vs MP7720DS-LF)
Notas de projeto
Treat the exposed pad as the primary thermal path. Estimated design work should begin with the actual dissipation generated by the Class-D output stage at the selected supply, load impedance, output level, and duty cycle, then verify the resulting junction temperature using the manufacturer thermal model. Keep the thermal copper continuous, avoid narrow neckdowns, and use vias or thermal structures recommended by the manufacturer datasheet.
Provide local supply decoupling close to the amplifier pins and route high-current output and ground paths with low resistance. The verified 9.5V-to-36V supply range does not guarantee regulation or safe thermal operation across every combination of input voltage and speaker load. Check startup current, supply droop, wiring loss, and the regulator's current margin before enabling a 15W nominal output target.
Use the official MP7740 datasheet layout as the authority for exposed-pad connection, input routing, output routing, and component placement. Keep sensitive input and ground paths away from the switching output node, minimize loop area in the power stage, and account for the speaker filter or EMI network specified by the manufacturer. The supplied data does not include exact pin functions or via counts, so those details must not be inferred.
Do not assume that integrated short-circuit protection removes the need for a safe speaker load or correct wiring. Confirm the speaker impedance, cable length, amplifier shutdown behavior, and thermal conditions in the finished enclosure. Also avoid substituting a related MPS amplifier without checking the datasheet pinout; the available cross-reference search identifies MP7720DS-LF as related but does not prove pin-to-pin replacement of MP7740DN-LF-Z.
Informações de conformidade
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Do not infer these statuses from the manufacturer name or package.
