National Semiconductor LM4811MM/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 2.51 | Dhs. 2.51 |
| 15+ | Dhs. 2.41 | Dhs. 36.15 |
| 25+ | Dhs. 2.36 | Dhs. 59.00 |
| 50+ | Dhs. 2.23 | Dhs. 111.50 |
| 100+ | Dhs. 1.97 | Dhs. 197.00 |
| N+ | Dhs. 0.39 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | Boomer® |
| Packaging | Bulk | |
| Part Status | Active |
| Type | Class AB |
| Output Type | Headphones, 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 105mW x 2 @ 16Ohm |
| Voltage - Supply | 2V ~ 5.5V |
| Features | Depop, Shutdown, Thermal Protection, Volume Control |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 10-VSSOP |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
This stereo headphone amplifier IC is designed for low-voltage portable applications, delivering 105mW per channel into 16-ohm loads. Operating from 2V to 5.5V, it integrates depop circuitry to eliminate audible clicks during power-up and shutdown, along with thermal protection for safe operation. The built-in volume control simplifies system design, making it an excellent choice for personal audio devices, gaming accessories, and medical alert systems. Its compact 10-VSSOP package saves board space while maintaining high audio quality.
- Integrated Volume Control: Reduces external component count and simplifies design.
- Depop Circuitry: Eliminates power-up and shutdown clicks for a better user experience.
- Low Voltage Operation: Works from 2V, ideal for single-cell battery applications.
- Thermal Protection: Ensures safe operation under extended use.
- Compact Package: 10-VSSOP footprint suits space-constrained portable designs.
Portable MP3 Player Headphone Amplifier
The LM4811MM/NOPB's low 2V minimum supply and 105mW output per channel make it perfect for driving headphones in portable media players, ensuring clear audio with minimal battery drain.
Smartphone Audio Accessory
With integrated volume control and depop circuitry, this amplifier enhances smartphone audio dongles by eliminating startup clicks and providing adjustable gain.
Wireless Earbud Charging Case
Its small 10-VSSOP package and low power consumption allow integration into earbud charging cases for audio relay or signal boosting.
Portable Gaming Console Audio
The shutdown feature helps conserve battery life in handheld gaming devices, while the stereo output delivers immersive sound for gaming.
Medical Monitoring Device Audio
Thermal protection and reliable operation from 2V to 5.5V make it suitable for battery-powered medical equipment requiring audio alerts.
DIY Headphone Amplifier Project
Hobbyists can use the LM4811 to build a compact, low-distortion headphone amp with minimal external components, leveraging the built-in volume control.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| LM4811MM/NOPB | 10-VSSOP | 2V ~ 5.5V | 105mW x 2 @ 16Ω |
| LM4864MMX/NOPB | 8-VSSOP | 2.7V ~ 5.5V | 675mW x 1 @ 8Ω |
| LMV1012TP-25/NOPB | 4-DSBGA | 2V ~ 5V | N/A (Microphone Preamp) |
- Q: What is the supply voltage range for the LM4811MM/NOPB?
- A: It operates from 2V to 5.5V, ideal for low-voltage battery applications.
- Q: What output power can this headphone amplifier deliver?
- A: It provides 105mW per channel into 16Ω loads, suitable for driving stereo headphones.
- Q: Does the LM4811 include volume control?
- A: Yes, it features an integrated volume control function for adjusting output level.
- Q: What protection features are built in?
- A: It includes depop circuitry to reduce click/pop noise, shutdown mode, and thermal protection.
- Q: What package is the LM4811MM/NOPB available in?
- A: It comes in a 10-VSSOP (10-MSOP) surface-mount package.
LM4811MM/NOPB.pdf
- Q: What is the supply voltage range for the LM4811MM/NOPB?
- A: It operates from 2V to 5.5V, ideal for low-voltage battery applications.
- Q: What output power can this headphone amplifier deliver?
- A: It provides 105mW per channel into 16Ω loads, suitable for driving stereo headphones.
- Q: Does the LM4811 include volume control?
- A: Yes, it features an integrated volume control function for adjusting output level.
- Q: What protection features are built in?
- A: It includes depop circuitry to reduce click/pop noise, shutdown mode, and thermal protection.
- Q: What package is the LM4811MM/NOPB available in?
- A: It comes in a 10-VSSOP (10-MSOP) surface-mount package.
