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Amplificadores para auriculares

LM4880

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Amplificador de audio estéreo de Clase AB, entrada analógica y 250 mW con modo apagado

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LM4880

ACTIVO
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Detalles del producto

Output power (W) 0.11 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 8 PSRR (dB) 50 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.7 Architecture Class-AB Iq per channel (typ) (mA) 1.8
Output power (W) 0.11 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 8 PSRR (dB) 50 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.7 Architecture Class-AB Iq per channel (typ) (mA) 1.8
SOIC (D) 8 29.4 mm² 4.9 x 6
  • No Bootstrap Capacitors or Snubber Circuits are Necessary
  • Small Outline (SOIC) and PDIP Packaging
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • THD+N at 1kHz at 200mW Continuous Average Output Power into 8Ω: 0.1% (max)
  • THD+N at 1kHz at 85mW Continuous Average Output Power into 32Ω: 0.1% (typ)
  • Output Power at 10% THD+N at 1kHz into 8Ω 325 mW (typ)
  • Shutdown Current 0.7 µA (typ)
  • 2.7V to 5.5V Supply Voltage Range

All trademarks are the property of their respective owners.

  • No Bootstrap Capacitors or Snubber Circuits are Necessary
  • Small Outline (SOIC) and PDIP Packaging
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • THD+N at 1kHz at 200mW Continuous Average Output Power into 8Ω: 0.1% (max)
  • THD+N at 1kHz at 85mW Continuous Average Output Power into 32Ω: 0.1% (typ)
  • Output Power at 10% THD+N at 1kHz into 8Ω 325 mW (typ)
  • Shutdown Current 0.7 µA (typ)
  • 2.7V to 5.5V Supply Voltage Range

All trademarks are the property of their respective owners.

The LM4880 is a dual audio power amplifier capable of delivering typically 250mW per channel of continuous average power to an 8Ω load with 0.1% THD+N using a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging.

Since the LM4880 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4880 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4880 can be configured by external gain-setting resistors.

The LM4880 is a dual audio power amplifier capable of delivering typically 250mW per channel of continuous average power to an 8Ω load with 0.1% THD+N using a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging.

Since the LM4880 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4880 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4880 can be configured by external gain-setting resistors.
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Documentación técnica

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Tipo Título Fecha
* Data sheet LM4880   Dual 250 mW Audio Power Amplifier with Shutdown Mode datasheet (Rev. C) 02 may 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 ago 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 jun 2019

Diseño y desarrollo

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Pedidos y calidad

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  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
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  • Lugar de fabricación
  • Lugar de ensamblaje

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