National Semiconductor LM4808M
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 1.12 | Dhs. 1.12 |
| 15+ | Dhs. 1.10 | Dhs. 16.50 |
| 25+ | Dhs. 1.08 | Dhs. 27.00 |
| 50+ | Dhs. 1.02 | Dhs. 51.00 |
| 100+ | Dhs. 0.90 | Dhs. 90.00 |
| N+ | Dhs. 0.18 | 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 | 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 150mW x 2 @ 16Ohm |
| Voltage - Supply | 2V ~ 5.5V |
| Features | - |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 8-SOIC |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
The LM4808M is a stereo audio amplifier IC designed for low-power, battery-operated applications. Operating from 2V to 5.5V, it delivers 150mW per channel into 16Ω loads with Class AB efficiency, ensuring low distortion and high audio clarity. Its compact 8-SOIC surface-mount package makes it ideal for space-constrained designs in portable speakers, radios, and headphone amplifiers. With a wide operating temperature range of -40°C to 85°C, this chip provides reliable performance in diverse environments.
- Low Voltage Operation: Works from 2V to 5.5V, enabling direct battery power without regulators.
- Stereo Output: Dual-channel amplification for immersive audio in portable devices.
- Compact Package: 8-SOIC footprint saves board space in miniaturized designs.
- Wide Temperature Range: -40°C to 85°C ensures reliability in extreme conditions.
Portable Bluetooth Speakers
The LM4808M's low 2V minimum supply voltage and stereo output make it ideal for compact Bluetooth speakers, providing clear audio at 150mW per channel into 16Ω drivers while extending battery life.
AM/FM Radio Receivers
In portable radios, the LM4808M delivers efficient stereo amplification with low noise, enhancing weak signal reception and ensuring clear voice and music output through small headphones.
Headphone Amplifiers for MP3 Players
With its 2-channel stereo capability and 16Ω load support, this chip is perfect for headphone amps in personal media players, offering low distortion and high fidelity at low power.
Intercom Systems
The LM4808M can drive small speakers in intercom units, providing reliable audio amplification with minimal heat generation due to its Class AB efficiency and 5.5V max supply.
Alarm and Warning Drivers
For battery-operated alarm systems, the LM4808M offers sufficient output to drive piezo or small dynamic speakers, with shutdown features to conserve power when not in use.
DIY Audio Projects
Hobbyists can use the LM4808M in custom stereo audio projects, benefiting from its simple 8-pin SOIC package and wide voltage range for breadboard or PCB prototyping.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| LM4808M | 8-SOIC | 2V ~ 5.5V | 150mW x 2 @ 16Ω |
| LM4671ITLX/NOPB | 9-DSBGA | 2.4V ~ 5.5V | 2.5W x 1 @ 4Ω |
| LM4667MM/NOPB | 10-VSSOP | 2.7V ~ 5.5V | 1.3W x 1 @ 8Ω |
- Q: What is the typical supply voltage range for the LM4808M?
- A: The LM4808M operates from 2V to 5.5V, making it ideal for battery-powered devices.
- Q: What output power can I expect from this stereo amplifier?
- A: It delivers 150mW per channel into 16Ω loads, suitable for headphones or small speakers.
- Q: Is the LM4808M a Class AB amplifier?
- A: Yes, it is a Class AB stereo amplifier, offering low distortion and good audio fidelity.
- Q: What package is the LM4808M available in?
- A: It comes in an 8-SOIC surface-mount package (0.154", 3.90mm width).
- Q: Can this chip be used in portable audio applications?
- A: Yes, its low voltage operation and small package make it perfect for portable audio devices like MP3 players and radios.
LM4808M.pdf
- Q: What is the typical supply voltage range for the LM4808M?
- A: The LM4808M operates from 2V to 5.5V, making it ideal for battery-powered devices.
- Q: What output power can I expect from this stereo amplifier?
- A: It delivers 150mW per channel into 16Ω loads, suitable for headphones or small speakers.
- Q: Is the LM4808M a Class AB amplifier?
- A: Yes, it is a Class AB stereo amplifier, offering low distortion and good audio fidelity.
- Q: What package is the LM4808M available in?
- A: It comes in an 8-SOIC surface-mount package (0.154", 3.90mm width).
- Q: Can this chip be used in portable audio applications?
- A: Yes, its low voltage operation and small package make it perfect for portable audio devices like MP3 players and radios.
