MP7747DQ-LF-Z - 20W Mono Class-D Audio Amplifier | MPS
MPN: MP7747DQ-LF-Z ✓ فعالMP7747DQ-LF-Z جائزہ
A Class-D audio amplifier is a switching power amplifier that uses pulse-width-modulated output signals to drive a loudspeaker through a filtering network. Compared with a linear amplifier, the Class-D topology can provide higher efficiency and lower heat dissipation in portable or space-constrained equipment. The MP7747 integrates the power devices and protection functions into one package, reducing external component count and simplifying implementation compared with a discrete switching output stage.
The MP7747 is specifically positioned for mono audio reproduction, including portable speakers, compact consumer audio products, and small embedded audio systems. Its single-ended output architecture is intended to provide a straightforward connection to a speaker load after the required output filtering and decoupling. The verified product information does not provide the complete pin names, electrical limits, gain settings, or recommended PCB land pattern, so those details must be confirmed against the manufacturer datasheet before layout or firmware integration.
The integrated protection functions are important for portable equipment because they help manage startup behavior, shutdown behavior, overload conditions, and thermal stress. Pop elimination can reduce audible transients during startup or shutdown, while short-circuit protection helps protect the amplifier when the speaker connection is abnormal. These functions do not remove the need to observe the datasheet’s operating limits and speaker wiring requirements.
For layout, the MP7747 should be placed according to the manufacturer’s recommended land pattern and with short, low-inductance connections between the amplifier, input network, output filter, supply decoupling, and speaker load. Power and ground paths require particular care because switching audio amplifiers can produce high transient currents. The exact input capacitor, output filter, supply voltage, speaker impedance, and thermal limits are not included in the verified data and require datasheet confirmation.
This page combines the verified distributor and manufacturer descriptions for the MP7747DQ-LF-Z with practical selection guidance. It is intended to help engineers identify whether the part’s 20 W mono Class-D capability and integrated protection functions fit a target speaker system, while clearly separating verified information from parameters that still require confirmation from the manufacturer datasheet.
کے لیے ڈراپ اِن متبادل MP7747DQ-LF-Z — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں MP7747DQ-LF-Z (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Product Type, Short-Circuit Protection.
اس پروڈکٹ کے لیے کوئی ڈراپ اِن متبادل دستیاب نہیں۔
متبادل کی درخواست کریںMP7747DQ-LF-Z زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Type | Mono Class-D audio amplifier |
| Channel Count | 1 channel |
| Maximum Output Power | 20 W |
| Speaker Load | 4 Ω |
| آؤٹ پٹ کنفیگریشن | Single-ended |
| Power MOSFET Resistance | 250 mΩ integrated power MOSFETs |
| Startup/Shutdown Feature | Startup/shutdown pop elimination |
| Short-Circuit Protection | Integrated short-circuit protection circuits |
| Thermal Protection | Thermal protection |
| پیکیج | 10-QFN, 3 x 3 mm |
| ماؤنٹنگ ٹائپ | Surface mount |
| Device Class | Audio amplifier IC |
| Standard Order Quantity | 3003 pieces reported by one distributor listing |
MP7747DQ-LF-Z 10-qfn, 3 x 3 mm پن کنفیگریشن گائیڈ
MP7747DQ-LF-Z (10-qfn, 3 x 3 mm پیکیج) کے لیے پن کنفیگریشن۔ اس اینالاگ کمپوننٹ میں اِن پٹ، آؤٹ پٹ اور پاور سپلائی پنز شامل ہیں۔ آفسیٹ نل، کمپنسیشن اور اِن ایبل پن کنفیگریشنز کے لیے مینوفیکچرر کے ڈیٹا شیٹ سے رجوع کریں۔ سگنل کنڈیشننگ اور ایمپلیفائر سرکٹس کے لیے مثالی۔
کے لیے تفصیلی پن آؤٹ ڈیٹا دستیاب نہیں MP7747DQ-LF-Z.
رجوع کریں ڈیٹا شیٹ مکمل پن کنفیگریشن کے لیے۔
عام استعمالات
MP7747DQ-LF-Z کے لیے موزوں ہے 6 ایپلیکیشنs: Compact Portable Speaker, Consumer Audio Product, Battery-Powered Audio Module, Industrial Control Annunciator, Smart Home Audio Node, USB or Portable Audio Accessory.
Compact Portable Speaker
The MP7747DQ-LF-Z fits a compact mono speaker system because the manufacturer identifies it as a 20 W Class-D amplifier capable of driving a 4 Ω speaker. Its integrated 250 mΩ power MOSFETs reduce the external output-device count, while startup/shutdown pop elimination helps suppress audible transitions. The design still needs the manufacturer-recommended output filter, supply decoupling, and speaker protection. Verify battery voltage range and thermal dissipation before selecting the amplifier for a battery-powered enclosure.
تجویز کردہ
Consumer Audio Product
For a small consumer audio product, the MP7747DQ-LF-Z provides one-channel, single-ended Class-D output in a 10-QFN 3 x 3 mm package. The package helps preserve PCB area in products where the audio channel must coexist with control logic, connectivity, and a battery or USB supply. The integrated short-circuit and thermal protection support robust operation, but the amplifier still requires correct layout and the recommended speaker network. Confirm audio bandwidth and distortion requirements from the manufacturer datasheet.
تجویز کردہ
Battery-Powered Audio Module
The MP7747DQ-LF-Z is a candidate for a battery-powered audio module when the target speaker is approximately 4 Ω and the power budget supports a 20 W Class-D output stage. Its integrated power MOSFETs can simplify the power topology compared with a discrete output implementation, while pop elimination helps control startup and shutdown transients. The critical design checks are supply-voltage compatibility, speaker continuous power, thermal rise, and output-filter component selection. These parameters are not fully specified in the verified snippets and require datasheet confirmation.
تجویز کردہ
Industrial Control Annunciator
A mono Class-D stage such as the MP7747DQ-LF-Z can be evaluated for an industrial control annunciator or compact audible alarm where one speaker is sufficient and the enclosure is thermally constrained. The 20 W capability provides more headroom than many low-power alert drivers, while short-circuit and thermal protection are useful in a persistent audio-output path. The designer must account for industrial supply transients, EMI from the switching stage, speaker impedance, and acoustic limits. The verified data does not confirm an industrial temperature grade, so it should not be assumed.
تجویز کردہ
Smart Home Audio Node
The MP7747DQ-LF-Z can serve as the speaker driver in a smart-home audio node where local voice or alert playback is required. Its 10-QFN 3 x 3 mm package is useful beside a wireless or embedded controller, and the single-ended mono output simplifies integration with a compact speaker. The switching amplifier requires careful grounding and decoupling to prevent unwanted coupling into nearby control or radio circuits. Confirm supply sequencing, EMI behavior, and thermal performance in the final enclosure using the manufacturer application information.
تجویز کردہ
USB or Portable Audio Accessory
The MP7747DQ-LF-Z is suitable for evaluating in a USB-powered or battery-assisted audio accessory that drives one 4 Ω speaker. The integrated MOSFETs and protection circuits can reduce board area and improve robustness compared with a discrete Class-D output stage. However, a 20 W amplifier may exceed the practical power budget of a small USB source, so input supply limits, current transients, and thermal rise must be checked carefully. The verified sources confirm the 20 W and 4 Ω headline specifications but do not provide the required supply range.
تجویز کردہ
کے لیے انجینئرنگ ریفرنس ڈیٹا MP7747DQ-LF-Z — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ |
|---|---|
| Device Type | Mono Class-D audio amplifier |
| Channel Count | 1 channel |
| Output Power | 20 W |
| Speaker Load | 4 Ω |
| Output Configuration | Single-ended |
| Power MOSFET Resistance | 250 mΩ integrated power MOSFETs |
| Protection | Short-circuit protection and thermal protection |
| Package | 10-QFN, 3 x 3 mm |
| Startup/Shutdown | Pop elimination |
| Brand | Monolithic Power Systems |
اہم امتیازی خصوصیات
- Single-channel 20 W Class-D output (بمقابلہNo verified drop-in alternative available)
- Integrated power MOSFETs (بمقابلہNo verified drop-in alternative available)
- Protection and pop-control integration (بمقابلہNo verified drop-in alternative available)
- Compact surface-mount package (بمقابلہNo verified drop-in alternative available)
ڈیزائن نوٹس
Treat the MP7747DQ-LF-Z as a switching power stage: place supply decoupling and power-ground connections using the manufacturer’s recommended layout, and keep high-current output paths short and wide. The verified data confirms integrated 250 mΩ power MOSFETs but does not specify the supply-voltage range, so do not select the input rail or estimate current limits without consulting the official datasheet.
Use the official 10-QFN land pattern and verify pin numbering, exposed-pad connection, solder mask, and paste geometry before fabrication. The verified snippets identify a 10-QFN 3 x 3 mm package but do not provide a complete pin map. A pinout copied from a generic QFN drawing can cause input, output, supply, or ground misconnection.
Route the Class-D output and switching-current loop as compactly as practical, keep sensitive audio input traces away from power nodes, and provide a clean return path for the output filter. Place the filter and speaker connections according to the manufacturer reference design. EMI testing is essential because the MP7747’s switching output can couple into adjacent control, radio, or analog circuitry.
Do not connect the speaker directly to an unfiltered Class-D switching output, and do not assume the headline 20 W rating applies to every 4 Ω speaker. Confirm the speaker’s continuous power, impedance, required output-filter values, supply limits, thermal conditions, and startup behavior in the manufacturer datasheet before releasing a production design.
تعمیل کی معلومات
The verified snippets do not provide authoritative compliance statements. One distributor listing requests inventory verification and does not establish RoHS status, so compliance remains unknown.
