LM4875M/NOPB
- Created at: 2023-10-25 04:28:21 , by WikiIC
- Updated at: 2023-10-25 04:28:21
- Views: 6
LM4875M/NOPB
Product Overview
Category: Integrated Circuit (IC)
Use: Audio Power Amplifier
Characteristics: - High audio quality - Low power consumption - Small package size - Wide supply voltage range - Thermal shutdown protection
Package: 8-Pin SOIC (Small Outline Integrated Circuit)
Essence: The LM4875M/NOPB is a high-performance audio power amplifier IC designed for portable devices such as smartphones, tablets, and portable media players.
Packaging/Quantity: The LM4875M/NOPB is available in tape and reel packaging with a quantity of 2500 units per reel.
Specifications
- Supply Voltage Range: 2.7V to 5.5V
- Output Power: 1.1W (typical) into 8Ω load at 5V supply
- Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1W output power
- Shutdown Current: 0.01μA (typical)
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The LM4875M/NOPB has the following pin configuration:
```
| | --| VDD GND|-- Pin 1: Ground (GND) --| IN+ SHDN|-- Pin 2: Shutdown (SHDN) --| IN- OUT|-- Pin 3: Output (OUT) --| BP VDD|-- Pin 4: Positive Power Supply (VDD) --| BYPASS NC |-- Pin 5: Bypass Capacitor (BYPASS) --| VDD GND|-- Pin 6: Ground (GND) --| IN- OUT|-- Pin 7: Output (OUT) --| IN+ SHDN|-- Pin 8: Shutdown (SHDN) |___________| ```
Functional Features
- High audio quality with low distortion and noise
- Thermal shutdown protection to prevent overheating
- Low power consumption for extended battery life
- Wide supply voltage range allows compatibility with various power sources
- Bypass capacitor pin for improved audio performance
Advantages and Disadvantages
Advantages: - High audio quality ensures clear and accurate sound reproduction - Low power consumption extends battery life in portable devices - Small package size enables compact designs - Wide supply voltage range provides flexibility in power source selection - Thermal shutdown protection prevents damage due to overheating
Disadvantages: - Limited output power may not be suitable for high-power audio applications - Requires external components for proper operation - Sensitive to electromagnetic interference (EMI) due to its small package size
Working Principles
The LM4875M/NOPB is a class AB audio power amplifier that amplifies the audio signal received from an input source. It operates by converting the low-level audio signal into a higher power output suitable for driving speakers or headphones. The amplifier utilizes a combination of analog circuitry and feedback mechanisms to ensure accurate and faithful sound reproduction.
Detailed Application Field Plans
The LM4875M/NOPB is commonly used in various portable electronic devices, including: - Smartphones - Tablets - Portable media players - Bluetooth speakers - Gaming consoles - Personal digital assistants (PDAs)
Detailed and Complete Alternative Models
- TPA3116D2: Class D audio amplifier with higher output power and efficiency.
- MAX98357A: Integrated audio amplifier with built-in digital-to-analog converter (DAC).
- TDA7492: Stereo audio amplifier with higher output power and multiple input options.
These alternative models offer different features and specifications, providing options for various audio amplifier requirements.
Word count: 400 words
List 10 common questions and answers related to the application of LM4875M/NOPB in technical solutions
What is the maximum power output of LM4875M/NOPB?
- The maximum power output of LM4875M/NOPB is 750mW per channel into an 8Ω load.What is the supply voltage range for LM4875M/NOPB?
- The supply voltage range for LM4875M/NOPB is 2.7V to 15V.Can LM4875M/NOPB be used in battery-powered applications?
- Yes, LM4875M/NOPB can be used in battery-powered applications due to its wide supply voltage range and low power consumption.Does LM4875M/NOPB require external compensation?
- No, LM4875M/NOPB does not require external compensation, which simplifies the design process.What is the typical THD+N (Total Harmonic Distortion + Noise) of LM4875M/NOPB?
- The typical THD+N of LM4875M/NOPB is 0.03% at 1kHz and 10% of the maximum output power.Can LM4875M/NOPB be used in headphone amplifier applications?
- Yes, LM4875M/NOPB can be used in headphone amplifier applications due to its low distortion and noise performance.What is the recommended operating temperature range for LM4875M/NOPB?
- The recommended operating temperature range for LM4875M/NOPB is -40°C to 85°C.Is LM4875M/NOPB suitable for portable audio devices?
- Yes, LM4875M/NOPB is suitable for portable audio devices due to its low power consumption and small package size.Can LM4875M/NOPB be used in single-supply applications?
- Yes, LM4875M/NOPB can be used in single-supply applications, making it versatile for various technical solutions.What is the package type of LM4875M/NOPB?
- LM4875M/NOPB is available in a small 8-pin MSOP package, making it suitable for space-constrained designs.
- https://chipmlcc.ru/product/details/texas-instruments/lm4875m-nopb.html [PDF download, circuit diagram, pin configuration, detailed specifications, and more electronic component spot channels.]
- https://www.chipmlcc.com/product/details/texas-instruments/lm4875m-nopb.html [PDF download, circuit diagram, pin configuration, detailed specifications, and more electronic component spot channels.]
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