Imagens apenas para referência
LM4871MX/NOPB
+Lista de MateriaisLM4871 BOOMER SERIES: 3W AUDIO A
-
FabricanteNational Semiconductor
-
Peça do Fabricante #LM4871MX/NOPB
-
Ficha Técnica LM4871MX/NOPB DataSheet
-
Pacote SOIC-8
-
Em Estoque1641
365 Garantia de Qualidade em 1 dia
7*24 Garantia de serviço em 24 horas
90-Garantia de pós-venda em 1 dia
Garantia de Produto Genuíno
Especificações
| Atributo | Valor |
| Package / Case | Bulk |
| Series | Boomer® |
| Part Status | Active |
| Type | Class AB |
| Output Type | 1-Channel (Mono) |
| Max Output Powerx Channels @ Load | 3W x 1 @ 3Ohm |
| Voltage - Supply | 2V ~ 5.5V |
| Features | Shutdown, Thermal Protection |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Supplier Device Package | 8-SOIC |
Visão Geral
Description
The LM4871MX/NOPB is a mono audio power amplifier designed by Texas Instruments. It is part of the LM4871 series, which is known for its ability to deliver high-quality audio output with minimal external components. The device is capable of driving an 8-ohm speaker load at up to 1 watt of continuous average power with less than 1% Total Harmonic Distortion (THD) using a 5V power supply.
Key features of the LM4871MX/NOPB include low power consumption, making it suitable for battery-operated devices, and a wide supply voltage range from 2.0V to 5.5V. It also incorporates a thermal shutdown protection mechanism to prevent damage from overheating and has a micro-power shutdown mode that significantly reduces power usage when the amplifier is not active.
The component is typically used in applications where compact and efficient audio amplification is required, such as portable electronics, smartphones, and other consumer audio devices. The "NOPB" designation indicates it is compliant with lead-free and RoHS standards.
Key features of the LM4871MX/NOPB include low power consumption, making it suitable for battery-operated devices, and a wide supply voltage range from 2.0V to 5.5V. It also incorporates a thermal shutdown protection mechanism to prevent damage from overheating and has a micro-power shutdown mode that significantly reduces power usage when the amplifier is not active.
The component is typically used in applications where compact and efficient audio amplification is required, such as portable electronics, smartphones, and other consumer audio devices. The "NOPB" designation indicates it is compliant with lead-free and RoHS standards.
Equivalent
The LM4871MX/NOPB is a mono audio power amplifier. Equivalent products include:
1. TDA7052: A mono BTL audio power amplifier.
2. MAX9710: A mono bridge-tied load (BTL) audio power amplifier.
3. PAM8302A: A low-power audio amplifier with a similar output.
These alternatives offer similar functionality but may differ slightly in power output and package format. Always check the datasheets for compatibility in specific applications.
1. TDA7052: A mono BTL audio power amplifier.
2. MAX9710: A mono bridge-tied load (BTL) audio power amplifier.
3. PAM8302A: A low-power audio amplifier with a similar output.
These alternatives offer similar functionality but may differ slightly in power output and package format. Always check the datasheets for compatibility in specific applications.
Features
The LM4871MX/NOPB is a mono bridge audio power amplifier designed for delivering 3W of output power into a 3Ω load with minimal external components. Key features include:
1. Output Power: Capable of delivering 3W into a 3Ω load.
2. Supply Voltage: Operates within a wide voltage range of 2.0V to 5.5V.
3. Efficiency: Class AB amplifier design ensures efficient power usage.
4. Low Distortion: Provides low total harmonic distortion (THD) for clear audio output.
5. Differential Inputs: Offers differential inputs to reduce noise and improve audio quality.
6. Shutdown Mode: Features a shutdown mode to reduce power consumption when not in use.
7. Thermal Protection: Includes thermal shutdown protection to prevent overheating.
8. Pop and Click Suppression: Integrated circuitry minimizes audible pops and clicks during power up and shutdown.
9. Small Package: Available in a compact SOIC-8 package, ideal for space-constrained applications.
These features make it suitable for a variety of portable audio applications.
1. Output Power: Capable of delivering 3W into a 3Ω load.
2. Supply Voltage: Operates within a wide voltage range of 2.0V to 5.5V.
3. Efficiency: Class AB amplifier design ensures efficient power usage.
4. Low Distortion: Provides low total harmonic distortion (THD) for clear audio output.
5. Differential Inputs: Offers differential inputs to reduce noise and improve audio quality.
6. Shutdown Mode: Features a shutdown mode to reduce power consumption when not in use.
7. Thermal Protection: Includes thermal shutdown protection to prevent overheating.
8. Pop and Click Suppression: Integrated circuitry minimizes audible pops and clicks during power up and shutdown.
9. Small Package: Available in a compact SOIC-8 package, ideal for space-constrained applications.
These features make it suitable for a variety of portable audio applications.
Pinout
The LM4871MX/NOPB is an audio power amplifier designed primarily for driving small speakers in portable devices. It is part of the LM4871 series and is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. VDD (Pin 1): Supply voltage input. Connect to a suitable DC power source.
2. Bypass (Pin 2): Bypass capacitor pin used to reduce power supply noise. Connect a capacitor to ground.
3. -IN (Pin 3): Inverting input of the amplifier. Connect to the audio input signal.
4. +IN (Pin 4): Non-inverting input of the amplifier. Often connected to ground for single-ended input.
5. GND (Pin 5): Ground connection.
6. VOUT (Pin 6): Amplifier output. Connect to the speaker or load.
7. Shutdown (Pin 7): Shutdown pin to disable the amplifier and reduce power consumption. Can be connected to VDD to enable normal operation.
8. VO1 (Pin 8): Another output pin. This can be used in conjunction with Pin 6 for bridge-tied load (BTL) configurations.
This IC is designed for low power applications, delivering up to 1W of power, and is particularly suitable for battery-powered devices.
1. VDD (Pin 1): Supply voltage input. Connect to a suitable DC power source.
2. Bypass (Pin 2): Bypass capacitor pin used to reduce power supply noise. Connect a capacitor to ground.
3. -IN (Pin 3): Inverting input of the amplifier. Connect to the audio input signal.
4. +IN (Pin 4): Non-inverting input of the amplifier. Often connected to ground for single-ended input.
5. GND (Pin 5): Ground connection.
6. VOUT (Pin 6): Amplifier output. Connect to the speaker or load.
7. Shutdown (Pin 7): Shutdown pin to disable the amplifier and reduce power consumption. Can be connected to VDD to enable normal operation.
8. VO1 (Pin 8): Another output pin. This can be used in conjunction with Pin 6 for bridge-tied load (BTL) configurations.
This IC is designed for low power applications, delivering up to 1W of power, and is particularly suitable for battery-powered devices.
Manufacturer
The LM4871MX/NOPB is manufactured by Texas Instruments, a globally recognized technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, which are essential components in a wide range of electronic devices. The company operates in sectors such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. Texas Instruments is renowned for its innovation in analog and embedded processing products, contributing significantly to advancements in technology and electronics.
Application
The LM4871MX/NOPB is an audio power amplifier primarily used in portable and battery-powered devices. Key application areas include:
1. Mobile Phones: Enhances audio output quality for calls and media playback.
2. MP3 Players and Audio Devices: Provides efficient audio amplification for personal music players.
3. Portable Gaming Devices: Delivers clear and powerful sound for gaming experiences.
4. PDAs and Handheld Computers: Improves audio output for alerts and media.
5. Notebook Computers: Acts as an integral part of the audio subsystem for better sound quality.
6. Personal Audio Solutions: Ideal for small speaker systems and personal audio amplifiers.
Its efficient design and low power consumption make it suitable for applications where space and power are limited.
1. Mobile Phones: Enhances audio output quality for calls and media playback.
2. MP3 Players and Audio Devices: Provides efficient audio amplification for personal music players.
3. Portable Gaming Devices: Delivers clear and powerful sound for gaming experiences.
4. PDAs and Handheld Computers: Improves audio output for alerts and media.
5. Notebook Computers: Acts as an integral part of the audio subsystem for better sound quality.
6. Personal Audio Solutions: Ideal for small speaker systems and personal audio amplifiers.
Its efficient design and low power consumption make it suitable for applications where space and power are limited.
Package
The LM4871MX/NOPB is a low-power audio power amplifier packaged in an 8-pin SOIC (Small Outline Integrated Circuit). The "/NOPB" suffix indicates that the device is RoHS compliant, meaning it is free of lead and other hazardous substances.
