Thông số kỹ thuật
| thuộc tính | Giá trị |
| Brand | Texas Instruments |
| Product Type | Audio Amplifiers |
| Subcategory | Audio ICs |
| Package/Case | MSOP |
| Supply Voltage - Min | 2.4 V |
| Supply Voltage - Max | 5.5 V |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Height | 0.86 mm |
| Length | 3 mm |
| Operating Supply Voltage | 3 V, 5 V |
| Width | 3 mm |
| Product | Audio Amplifiers |
| Output Type | 1-Channel Mono |
| Class | Class-AB |
| Output Power | 480 mW |
| THD plus Noise | 0.5 % |
| Audio - Load Impedance | 32 Ohms |
| Description/Function | Speaker |
| Input Type | Single |
| Output Signal Type | Single |
| PSRR - Power Supply Rejection Ratio | 50 dB |
| Supply Type | Single |
| Vos - Input Offset Voltage | 50 mV |
Tổng quan
Description
The LM4882MM is a dual audio power amplifier designed by Texas Instruments, primarily used in portable and battery-operated devices. It features a low power consumption, high efficiency Class AB amplifier configuration, providing up to 2W output power per channel with a supply voltage of 5V. The LM4882MM is known for its low total harmonic distortion (THD) and high signal-to-noise ratio (SNR), ensuring high-quality audio performance for applications like portable speakers, mobile phones, and other consumer electronics.
Key features include thermal shutdown protection, short circuit protection, and a simple pin configuration for easy integration into various designs. Additionally, it supports a wide range of input signals and offers low idle power consumption, making it ideal for battery-operated applications. Overall, the LM4882MM provides a compact and efficient solution for delivering robust audio amplification.
Key features include thermal shutdown protection, short circuit protection, and a simple pin configuration for easy integration into various designs. Additionally, it supports a wide range of input signals and offers low idle power consumption, making it ideal for battery-operated applications. Overall, the LM4882MM provides a compact and efficient solution for delivering robust audio amplification.
Equivalent
The LM4882MM is a dual audio power amplifier. Equivalent products include:
1. LM4880 - Similar dual audio amplifier with lower power.
2. TPA2005D1 - A compact, low-power audio amplifier.
3. TDA7052 - Offers low-voltage operation for portable applications.
4. MAX9713 - Low-power dual audio amplifier with integrated shutdown.
Always verify specifications for compatibility in your application.
1. LM4880 - Similar dual audio amplifier with lower power.
2. TPA2005D1 - A compact, low-power audio amplifier.
3. TDA7052 - Offers low-voltage operation for portable applications.
4. MAX9713 - Low-power dual audio amplifier with integrated shutdown.
Always verify specifications for compatibility in your application.
Features
The LM4882MM is a dual high-performance audio amplifier designed for portable applications. Key features include:
1. Output Power: Delivers up to 2.2W per channel at 4Ω loads.
2. Low Distortion: Achieves low total harmonic distortion (THD), enhancing audio quality.
3. Wide Supply Voltage Range: Operates with a supply voltage from 2.5V to 5.5V, making it suitable for battery-powered devices.
4. Integrated Pop-and-Click Suppression: Reduces audible noise during power-up and shutdown.
5. High Efficiency: Features an efficient Class D output stage, minimizing heat generation and extending battery life.
6. Adjustable Gain: Allows for customization of gain settings, catering to various application needs.
7. Thermal and Short-Circuit Protection: Built-in protection circuitry enhances reliability and longevity.
8. Compact Package: Available in a small surface-mount package, facilitating easy integration into tight spaces.
These features make the LM4882MM ideal for applications such as portable speakers, televisions, and other audio systems.
1. Output Power: Delivers up to 2.2W per channel at 4Ω loads.
2. Low Distortion: Achieves low total harmonic distortion (THD), enhancing audio quality.
3. Wide Supply Voltage Range: Operates with a supply voltage from 2.5V to 5.5V, making it suitable for battery-powered devices.
4. Integrated Pop-and-Click Suppression: Reduces audible noise during power-up and shutdown.
5. High Efficiency: Features an efficient Class D output stage, minimizing heat generation and extending battery life.
6. Adjustable Gain: Allows for customization of gain settings, catering to various application needs.
7. Thermal and Short-Circuit Protection: Built-in protection circuitry enhances reliability and longevity.
8. Compact Package: Available in a small surface-mount package, facilitating easy integration into tight spaces.
These features make the LM4882MM ideal for applications such as portable speakers, televisions, and other audio systems.
Pinout
The LM4882MM is a dual audio power amplifier with a pin count of 8. It is designed for low-voltage applications, providing high output power and low distortion.
Pin Functions:
1. VDD (Pin 1): Power supply input.
2. GND (Pin 2): Ground reference.
3. OUT1 (Pin 3): Output for the first amplifier.
4. OUT2 (Pin 4): Output for the second amplifier.
5. IN1 (Pin 5): Input for the first amplifier.
6. IN2 (Pin 6): Input for the second amplifier.
7. NC (Pin 7): No connection (not used).
8. Shutdown (Pin 8): Active low shutdown control.
The LM4882MM is ideal for portable audio applications, ensuring efficient performance with minimal power consumption.
Pin Functions:
1. VDD (Pin 1): Power supply input.
2. GND (Pin 2): Ground reference.
3. OUT1 (Pin 3): Output for the first amplifier.
4. OUT2 (Pin 4): Output for the second amplifier.
5. IN1 (Pin 5): Input for the first amplifier.
6. IN2 (Pin 6): Input for the second amplifier.
7. NC (Pin 7): No connection (not used).
8. Shutdown (Pin 8): Active low shutdown control.
The LM4882MM is ideal for portable audio applications, ensuring efficient performance with minimal power consumption.
Manufacturer
The LM4882MM is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments specializes in designing and manufacturing a wide range of electronics and semiconductor components, including analog chips, embedded processors, and digital signal processors. Founded in 1930, TI serves various industries, including automotive, industrial, communications, and consumer electronics. The company is known for its innovation in integrated circuits and has a strong focus on research and development, aiming to provide solutions that improve efficiency and performance in electronic devices. Texas Instruments is a publicly traded company and is highly regarded in the tech industry for its contributions to advancements in semiconductor technology.
Application
The LM4882MM is a dual audio power amplifier designed for applications in portable electronic devices. Its key application areas include:
1. Portable Speakers: Enhancing audio output in compact sound systems.
2. TVs and Monitors: Driving small speaker systems for improved sound quality.
3. Mobile Devices: Amplifying audio in smartphones and tablets.
4. Computer Speakers: Offering amplification in desktop and laptop audio systems.
5. Consumer Electronics: Supporting various devices needing efficient audio amplification.
Its low power consumption and compact size make it ideal for battery-operated devices.
1. Portable Speakers: Enhancing audio output in compact sound systems.
2. TVs and Monitors: Driving small speaker systems for improved sound quality.
3. Mobile Devices: Amplifying audio in smartphones and tablets.
4. Computer Speakers: Offering amplification in desktop and laptop audio systems.
5. Consumer Electronics: Supporting various devices needing efficient audio amplification.
Its low power consumption and compact size make it ideal for battery-operated devices.
Package
The LM4882MM is available in a surface-mount package type, specifically an MSOP-8 (Mini Small Outline Package) with 8 pins.
