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LM4865M
+BOMAudio Amplifiers
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ManufacturerTexas Instruments
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Mfr. Part #LM4865M
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In Stock10989
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Specifications
| Attribute | Value |
| Packaging | Tube |
| Standard Pack Qty | 95 |
Overview
Description
The LM4865M is an integrated circuit designed by Texas Instruments, primarily used as an audio power amplifier. It is known for its capability to deliver 1W continuous average power per channel into an 8-ohm load with less than 1% total harmonic distortion (THD) using a 5V power supply. The chip is designed for portable electronic applications, offering high-quality audio with minimal external components, thanks to its bridge-tied load (BTL) configuration.
Key features of the LM4865M include low shutdown current, thermal shutdown protection, and pop-and-click reduction circuitry, which enhances the user experience by minimizing noise during power up and down. Its small package and low external component count make it ideal for compact devices like smartphones and portable media players. The LM4865M supports a wide range of voltages, allowing flexibility in design. Overall, it serves as an efficient, cost-effective solution for developers seeking robust audio output in small, battery-operated devices.
Key features of the LM4865M include low shutdown current, thermal shutdown protection, and pop-and-click reduction circuitry, which enhances the user experience by minimizing noise during power up and down. Its small package and low external component count make it ideal for compact devices like smartphones and portable media players. The LM4865M supports a wide range of voltages, allowing flexibility in design. Overall, it serves as an efficient, cost-effective solution for developers seeking robust audio output in small, battery-operated devices.
Equivalent
The LM4865M is a Boomer audio power amplifier from Texas Instruments. Equivalent products include:
1. TDA2822M: Dual low-power audio amplifier.
2. LM386: Low-voltage audio power amplifier.
3. NJM2073: A stereo power amplifier by New Japan Radio Co.
4. KA2209: Dual audio power amplifier from Fairchild Semiconductor.
5. TDA7052: Mono amplifier from NXP.
These alternatives offer similar functionalities in low-power audio amplification for portable devices.
1. TDA2822M: Dual low-power audio amplifier.
2. LM386: Low-voltage audio power amplifier.
3. NJM2073: A stereo power amplifier by New Japan Radio Co.
4. KA2209: Dual audio power amplifier from Fairchild Semiconductor.
5. TDA7052: Mono amplifier from NXP.
These alternatives offer similar functionalities in low-power audio amplification for portable devices.
Features
The LM4865M is an audio power amplifier designed for delivering high-quality sound output in various electronic applications. Key features of this chip include:
1. Output Power: It typically provides 1.1W per channel into 8Ω loads with a 5V supply, making it suitable for driving small speakers.
2. Low Distortion: The amplifier offers low Total Harmonic Distortion (THD) and Noise, ensuring clear sound reproduction.
3. Bridge-Tied Load (BTL) Configuration: This configuration doubles the output power compared to a single-ended output, enhancing audio performance without the need for output coupling capacitors.
4. Shutdown Function: The device includes a low-power shutdown mode, reducing power consumption when the amplifier is not in use.
5. Thermal Protection: It features built-in thermal shutdown protection to prevent damage from overheating.
6. Minimal External Components: The design requires few external components, simplifying integration into systems.
7. Wide Supply Voltage Range: It operates over a supply voltage range from 2V to 5.5V, providing versatility for use in battery-powered devices.
These features make the LM4865M a robust choice for portable audio and multimedia applications.
1. Output Power: It typically provides 1.1W per channel into 8Ω loads with a 5V supply, making it suitable for driving small speakers.
2. Low Distortion: The amplifier offers low Total Harmonic Distortion (THD) and Noise, ensuring clear sound reproduction.
3. Bridge-Tied Load (BTL) Configuration: This configuration doubles the output power compared to a single-ended output, enhancing audio performance without the need for output coupling capacitors.
4. Shutdown Function: The device includes a low-power shutdown mode, reducing power consumption when the amplifier is not in use.
5. Thermal Protection: It features built-in thermal shutdown protection to prevent damage from overheating.
6. Minimal External Components: The design requires few external components, simplifying integration into systems.
7. Wide Supply Voltage Range: It operates over a supply voltage range from 2V to 5.5V, providing versatility for use in battery-powered devices.
These features make the LM4865M a robust choice for portable audio and multimedia applications.
Pinout
The LM4865M is an audio power amplifier designed for driving headphones or low-power speaker applications. It is typically provided in an 8-pin Small Outline Integrated Circuit (SOIC) package.
Here is a brief overview of its pin functions:
1. VDD (Pin 1): This is the power supply pin. It provides the necessary voltage for the operation of the amplifier.
2. Bypass (Pin 2): It's used to reduce power supply noise by connecting a capacitor between this pin and ground.
3. IN+ (Pin 3): The non-inverting input for the audio signal.
4. IN- (Pin 4): The inverting input for the audio signal.
5. SD (Pin 5): This is the shutdown control pin. Bringing this pin low typically puts the device into a low-power shutdown mode.
6. GND (Pin 6): Ground pin. It is the reference point for the amplifier.
7. OUT+ (Pin 7): The positive output pin for driving the connected load.
8. OUT- (Pin 8): The negative output pin for the bridged load connection.
The LM4865M is suitable for applications that require low distortion and a wide dynamic range.
Here is a brief overview of its pin functions:
1. VDD (Pin 1): This is the power supply pin. It provides the necessary voltage for the operation of the amplifier.
2. Bypass (Pin 2): It's used to reduce power supply noise by connecting a capacitor between this pin and ground.
3. IN+ (Pin 3): The non-inverting input for the audio signal.
4. IN- (Pin 4): The inverting input for the audio signal.
5. SD (Pin 5): This is the shutdown control pin. Bringing this pin low typically puts the device into a low-power shutdown mode.
6. GND (Pin 6): Ground pin. It is the reference point for the amplifier.
7. OUT+ (Pin 7): The positive output pin for driving the connected load.
8. OUT- (Pin 8): The negative output pin for the bridged load connection.
The LM4865M is suitable for applications that require low distortion and a wide dynamic range.
Manufacturer
The LM4865M is manufactured by Texas Instruments. Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. Its products are widely used in applications such as industrial, automotive, personal electronics, and communication equipment. The company is well-known for developing innovative and reliable electronic components that support a wide range of industries globally.
Application
The LM4865M is an audio power amplifier commonly used in various applications requiring low-power amplification with high audio quality. Key application areas include:
1. Portable Audio Devices: Such as MP3 players, radios, and portable speakers, where it provides efficient audio amplification.
2. Smartphones and Tablets: Enhancing sound output for integrated speakers or headphones.
3. Computer Sound Systems: Used in multimedia speakers for desktops and laptops.
4. Consumer Electronics: Including televisions and home audio systems.
5. Educational Electronics: Suitable for diy kits and projects that require a simple audio amplification solution.
Its compact size and efficient power usage make it well-suited for battery-operated devices.
1. Portable Audio Devices: Such as MP3 players, radios, and portable speakers, where it provides efficient audio amplification.
2. Smartphones and Tablets: Enhancing sound output for integrated speakers or headphones.
3. Computer Sound Systems: Used in multimedia speakers for desktops and laptops.
4. Consumer Electronics: Including televisions and home audio systems.
5. Educational Electronics: Suitable for diy kits and projects that require a simple audio amplification solution.
Its compact size and efficient power usage make it well-suited for battery-operated devices.
Package
The LM4865M is an audio power amplifier that typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. This type of package is commonly used for surface mounting on printed circuit boards and is known for its compact size and ease of integration in electronic designs.
