National Semiconductor LM4666SD/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 1.95 | Dhs. 1.95 |
| 15+ | Dhs. 1.90 | Dhs. 28.50 |
| 25+ | Dhs. 1.85 | Dhs. 46.25 |
| 50+ | Dhs. 1.75 | Dhs. 87.50 |
| 100+ | Dhs. 1.55 | Dhs. 155.00 |
| N+ | Dhs. 0.31 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | Boomer® |
| Packaging | Bulk | |
| Part Status | Active |
| Type | Class D |
| Output Type | 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 1.2W x 2 @ 8Ohm |
| Voltage - Supply | 2.8V ~ 5.5V |
| Features | Depop, Differential Inputs, Short-Circuit Protection, Shutdown |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 14-WSON (4x3) |
| Package / Case | 14-WFDFN Exposed Pad |
| ROHS |  |
This stereo Class D audio amplifier delivers 1.2W per channel into 8Ω loads, operating from 2.8V to 5.5V. Its high efficiency reduces heat and extends battery life in portable devices. Integrated features include depop, differential inputs, short-circuit protection, and shutdown. The compact 14-WSON package with exposed pad aids thermal dissipation. Ideal for Bluetooth speakers, laptops, radios, and intercoms, this amplifier offers reliable stereo amplification.
- Stereo Output: 1.2W per channel into 8Ω for immersive audio.
- Class D Efficiency: Minimizes power loss, ideal for battery operation.
- Protection Features: Short-circuit and thermal protection enhance reliability.
- Compact Package: 14-WSON (4x3) saves space in portable designs.
Portable Bluetooth Speakers
The LM4666SD/NOPB's stereo output and 1.2W per channel provide clear audio for compact Bluetooth speakers while maintaining battery efficiency.
Laptop Audio Systems
Its small WSON package and low voltage operation make it suitable for internal laptop speakers, delivering stereo sound with minimal space.
Portable Radios
Differential inputs and low noise enhance radio reception quality in portable AM/FM devices.
Intercom Systems
Short-circuit and thermal protection ensure reliable operation in intercoms requiring continuous use.
Alarm Systems
The shutdown feature allows power saving in alarm drivers, while the depop circuitry prevents audible clicks.
DIY Audio Projects
Hobbyists can use this IC for building efficient stereo amplifiers with minimal external components.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| LM4666SD/NOPB | 14-WSON | 2.8V ~ 5.5V | 1.2W x 2 @ 8Ω |
| LM4941TM/NOPB | 9-DSBGA | 2.4V ~ 5.5V | 1.54W x 1 @ 8Ω |
| TPA2005D1DGNRQ1 | 8-HVSSOP | 2.5V ~ 5.5V | 1.45W x 1 @ 8Ω |
- Q: What is the output power of the LM4666SD/NOPB?
- A: It delivers 1.2W per channel into 8Ω, suitable for stereo audio in portable devices.
- Q: What is the supply voltage range?
- A: It operates from 2.8V to 5.5V, ideal for battery-powered applications.
- Q: Does it include short-circuit protection?
- A: Yes, it features short-circuit protection along with shutdown and depop circuitry.
- Q: What is the amplifier class?
- A: It is a Class D amplifier, offering high efficiency and low power dissipation.
- Q: What package is available?
- A: It comes in a 14-WSON (4x3) package with an exposed pad for thermal management.
LM4666SD/NOPB.pdf
- Q: What is the output power of the LM4666SD/NOPB?
- A: It delivers 1.2W per channel into 8Ω, suitable for stereo audio in portable devices.
- Q: What is the supply voltage range?
- A: It operates from 2.8V to 5.5V, ideal for battery-powered applications.
- Q: Does it include short-circuit protection?
- A: Yes, it features short-circuit protection along with shutdown and depop circuitry.
- Q: What is the amplifier class?
- A: It is a Class D amplifier, offering high efficiency and low power dissipation.
- Q: What package is available?
- A: It comes in a 14-WSON (4x3) package with an exposed pad for thermal management.
