MP7720DP-LF - 20W Mono Class-D Audio Amplifier | MPS
MPN: MP7720DP-LF ✓ Active| Qty | Unit Price | Extended |
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MP7720DP-LF Overview
A Class-D audio amplifier is a switching power amplifier in an audio-signal hierarchy. Its output-stage transistors operate mainly in a switching state, allowing efficient power delivery compared with a traditional linear amplifier. The MP7720 uses a single-ended output structure intended for driving a mono speaker load and integrating the power stage, control functions, and protection features into one device.
The principal verified ratings are 20 W output power, a 9.5 V minimum supply voltage, a 24 V maximum supply voltage, and an operating temperature range of -40 °C to 85 °C. The package is a lead-free plastic 8-DIP package, also identified in the supplied data as PDIP-8. The verified distributor listing describes the product as a 20 W Class-D mono single-ended audio amplifier.
The integrated 180 mΩ power MOSFETs are intended to improve amplifier efficiency and reduce solution size. Startup and shutdown pop-elimination circuitry helps reduce audible clicks during state changes, while short-circuit protection adds a basic safeguard for the output stage. Mute and standby functionality supports controlled audio muting or power management, although exact timing, enable thresholds, and output-current limits require confirmation in the manufacturer datasheet.
Typical applications include compact mono speakers, portable audio equipment, consumer audio products, small powered speaker systems, and auxiliary audio modules. The 9.5 V to 24 V supply range supports systems using higher-voltage audio rails, while the through-hole PDIP package can simplify prototype assembly and manual installation. Designers must still verify speaker impedance, power derating, thermal conditions, supply decoupling, and output filtering against the manufacturer data before production use.
This product summary combines the verified manufacturer description, distributor specifications, package information, and engineering notes to support initial design selection. It does not replace the complete MP7720 datasheet, particularly for electrical limits, pin functions, thermal resistance, switching behavior, and application-specific compensation.
Drop-in alternatives for MP7720DP-LF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesMP7720DP-LF Maximum Ratings & Electrical Characteristics
| Product Type | Mono Class-D audio amplifier |
| Output Power | 20 W |
| Supply Voltage | 9.5 V to 24 V |
| Output Configuration | Single-ended |
| Channel Count | 1 channel |
| Integrated Power MOSFET Resistance | 180 mΩ |
| Operating Temperature | -40 °C to 85 °C |
| Package | 8-DIP / PDIP-8 lead-free plastic package |
| Mounting Type | Through hole |
| Startup/ Shutdown Pop Elimination | Yes |
| Short-Circuit Protection | Yes |
| Mute / Standby Control | Yes |
| RoHS Status | RoHS |
| Channel Configuration | Mono |
| Class | Class D |
| Output Structure | Single-ended |
| Manufacturer | Monolithic Power Systems |
| Datasheet Family | MP7720 |
MP7720DP-LF 8-dip / pdip-8 lead-free plastic package Pin Configuration Guide
Pin configuration for MP7720DP-LF (8-dip / pdip-8 lead-free plastic package package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for MP7720DP-LF.
Refer to the datasheet for full pin configuration.
Typical Applications
MP7720DP-LF is suitable for 6 applications: Compact Mono Speaker, Portable Audio Equipment, Consumer Audio Product, Powered Speaker Module, Audio Test and Measurement Equipment, Industrial Audio Control.
Compact Mono Speaker
The MP7720DP-LF is suited to a compact powered mono-speaker module where the target power level is near the verified 20 W rating. Its Class-D architecture integrates 180 mΩ power MOSFETs, reducing the amount of external output-stage circuitry while preserving a small audio solution. The 9.5 V to 24 V supply range provides flexibility for systems using a higher-voltage audio rail. The designer should verify speaker impedance, acceptable distortion, thermal headroom, and the required output filter against the manufacturer datasheet before connecting the load.
Recommended
Portable Audio Equipment
A portable audio product can use the MP7720DP-LF when its amplified rail is within 9.5 V to 24 V and 20 W is an appropriate peak or continuous design target. The integrated switching output stage can simplify the power-amplifier section compared with a discrete design, while mute or standby support helps manage unwanted noise during state changes. A battery system still requires a suitable regulator or converter, and the amplifier’s efficiency, thermal behavior, and startup sequence must be evaluated under the enclosure’s actual thermal conditions.
Recommended
Consumer Audio Product
The MP7720DP-LF is appropriate for a compact consumer-audio enclosure that needs mono Class-D amplification without a large discrete output stage. Its 20 W rating, integrated 180 mΩ MOSFETs, short-circuit protection, and startup/shutdown pop-elimination circuitry make it a practical building block for speakers, auxiliary audio products, and simplified audio modules. Through-hole PDIP-8 construction also supports prototypes and serviceable assemblies. Final acoustic performance still depends on speaker selection, supply noise, output filtering, PCB layout, and thermal design.
Recommended
Powered Speaker Module
In a powered speaker module, the MP7720DP-LF can serve as the mono power-amplifier stage when the module operates from a 9.5 V to 24 V rail. The single-ended Class-D output is suited to a compatible speaker network, while mute or standby control allows the system to remain quiet during inactive periods. Because the verified excerpts do not state the recommended speaker impedance or output-filter values, the amplifier should be selected only after those requirements are confirmed from the manufacturer documentation and speaker electrical limits.
Recommended
Audio Test and Measurement Equipment
The MP7720DP-LF can be used in audio test equipment where a compact, integrated mono output stage is useful. The 20 W Class-D rating provides a defined output-power target, and the 9.5 V to 24 V supply range can support test fixtures built around higher-voltage rails. The PDIP package is convenient for through-hole fixture construction and prototype revisions. Test-system designers should separately evaluate output bandwidth, distortion, idle behavior, thermal performance, and grounding because those detailed specifications are not included in the supplied excerpts.
Recommended
Industrial Audio Control
The MP7720DP-LF can support industrial audio-control modules requiring a compact mono amplifier with a broad temperature rating. Its verified -40 °C to 85 °C operating range is relevant to equipment that may experience broad environmental conditions, while short-circuit protection helps protect the output stage during unexpected load conditions. Industrial designs should still validate enclosure temperature, supply transients, EMC requirements, speaker wiring, and functional safety needs. The supplied data does not state industrial certification or EMC compliance.
Recommended
Recommended Products Summary
Engineering reference data for MP7720DP-LF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MAX98357AETE+T | TAS5711PHPR | MAX98090AEWJ+T |
|---|---|---|---|---|
| Package | 8-PDIP / 8-DIP lead-free through hole | TQFN-16 surface mount; not same package | HTQFP-32; not same package | TQFN-28; not same package |
| Brand | Monolithic Power Systems | Maxim Integrated | Texas Instruments | Maxim Integrated |
| Product Type | Mono Class-D audio amplifier | Class-D audio amplifier; detailed alternate rating not supplied | Audio amplifier IC; detailed rating not supplied | Audio amplifier IC; detailed rating not supplied |
| Mounting Type | Through hole | Surface mount; not verified | Surface mount; not verified | Surface mount; not verified |
Key Differentiators
- Integrated Class-D power stage (vs MAX98357AETE+T)
- Through-hole package (vs MAX98357AETE+T)
- Integrated protection and control (vs TAS5711PHPR)
Design Notes
Design the supply rail around the verified 9.5 V to 24 V operating range and verify startup, shutdown, and load-transient behavior with the manufacturer’s recommended support network. The supplied data does not specify required input capacitance, output filtering, or enable thresholds, so do not infer those values from generic Class-D examples. Place local high-frequency bypass capacitance close to the supply pins and route high-current return paths with minimal loop area. Confirm regulator headroom before connecting the amplifier to a speaker.
Treat the 20 W rating as a device specification rather than a guarantee of unrestricted continuous output in every enclosure. Estimate dissipation from the actual supply voltage, output waveform, load impedance, and switching losses, then compare junction temperature with the verified -40 °C to 85 °C operating range. The retrieved data does not provide thermal resistance or a maximum package dissipation specification, so obtain those values from the manufacturer datasheet before selecting copper area or enclosure ventilation.
Keep the power-supply, output-stage, and audio-input paths physically distinct to reduce switching disturbance and ground bounce. Use a continuous return path for the speaker output, avoid long narrow traces where possible, and follow the manufacturer’s recommended output network and PCB layout. The single-ended output structure and integrated 180 mΩ MOSFETs make layout and return-current control important. Validate the completed board for oscillation, audible clicks, EMI, and speaker-load stability.
Compliance Information
The verified DigiChip specification identifies the MP7720DP-LF as RoHS compliant and describes a lead-free plastic package. REACH, halogen-free status, conflict-minerals status, and automotive qualification are not provided in the verified data.
