Monolithic Power Systems Inc. MP7747DQ-LF-Z
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 2.77 | Dhs. 2.77 |
| 15+ | Dhs. 2.69 | Dhs. 40.35 |
| 25+ | Dhs. 2.63 | Dhs. 65.75 |
| 50+ | Dhs. 2.48 | Dhs. 124.00 |
| 100+ | Dhs. 2.19 | Dhs. 219.00 |
| N+ | Dhs. 0.44 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Monolithic Power Systems Inc. |
| Product Series | |
| Packaging | Factory | Tape & Reel (TR) |
| Part Status | Active |
| Type | Class D |
| Output Type | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 20W x 1 @ 4Ohm |
| Voltage - Supply | 9.5V ~ 36V |
| Features | Depop, Short-Circuit and Thermal Protection |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 10-QFN (3x3) |
| Package / Case | 10-VFDFN Exposed Pad |
| ROHS |
The MP7747DQ-LF-Z is a robust mono Class D amplifier delivering 20W into 4Ω from a 9.5V to 36V supply. Designed for demanding applications, it features Depop technology for pop-free startup, along with short-circuit and thermal protection for reliable operation. The compact 10-QFN (3x3mm) package with exposed pad ensures efficient heat dissipation, making it suitable for automotive, industrial, and portable audio systems where high power and durability are required.
- High Output Power: 20W into 4Ω provides ample volume for speakers and alarms.
- Wide Supply Range: 9.5V to 36V accommodates automotive and industrial power rails.
- Integrated Protection: Short-circuit and thermal protection enhance system reliability.
- Pop-Free Operation: Depop circuitry eliminates audible clicks during power cycling.
- Compact Package: 10-QFN (3x3mm) saves space in power-constrained designs.
Automotive Audio Systems
The MP7747DQ-LF-Z's 9.5V to 36V supply range and 20W output make it suitable for car audio head units and door speakers, with robust protection against shorts and overheating.
Industrial Alarm Drivers
Its high output power and thermal protection enable reliable driving of alarm sirens in industrial environments, operating up to 125°C junction temperature.
Portable PA Systems
With 20W into 4Ω, this amplifier can power small public address speakers from a 12V battery, offering efficient Class D operation for extended use.
Home Theater Subwoofers
The MP7747DQ-LF-Z's mono output and wide voltage range allow it to drive subwoofer channels in compact home theater systems.
Marine Audio Equipment
Its rugged design and protection features make it ideal for marine speakers, handling voltage fluctuations and harsh conditions.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| MP7747DQ-LF-Z | 10-QFN (3x3) | 9.5V ~ 36V | 20W x 1 @ 4Ω |
| TPA2039D1YFFR | 9-DSBGA | 2.5V ~ 5.5V | 3.24W x 1 @ 4Ω |
- Q: What is the supply voltage range for the MP7747DQ-LF-Z?
- A: It operates from 9.5V to 36V.
- Q: What output power can the MP7747DQ-LF-Z deliver?
- A: It delivers 20W into 4Ω in mono mode.
- Q: Does this amplifier include protection features?
- A: Yes, it has short-circuit and thermal protection, plus Depop circuitry.
- Q: What is the amplifier class of the MP7747DQ-LF-Z?
- A: It is a mono Class D amplifier for high efficiency.
- Q: What package is available?
- A: It comes in a 10-QFN (3x3mm) package with exposed pad.
- Q: What is the supply voltage range for the MP7747DQ-LF-Z?
- A: It operates from 9.5V to 36V.
- Q: What output power can the MP7747DQ-LF-Z deliver?
- A: It delivers 20W into 4Ω in mono mode.
- Q: Does this amplifier include protection features?
- A: Yes, it has short-circuit and thermal protection, plus Depop circuitry.
- Q: What is the amplifier class of the MP7747DQ-LF-Z?
- A: It is a mono Class D amplifier for high efficiency.
- Q: What package is available?
- A: It comes in a 10-QFN (3x3mm) package with exposed pad.

MP7747DQ-LF-Z.pdf