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LM4871MM Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
LM4871MMNS865Yes

LM4871MM is a mono 3W audio power amplifier manufactured by National Semiconductor (NS).

The LM4871MM is a mono 3W audio power amplifier manufactured by National Semiconductor (NS).

Specifications:

  • Output Power: 3W into a 3Ω load at 5V
  • Supply Voltage Range: 2.0V to 5.5V
  • Quiescent Current: 4mA (typical)
  • Shutdown Current: 0.6μA (typical)
  • THD+N (Total Harmonic Distortion + Noise): 1% (typical at 1W into 3Ω)
  • Gain: Fixed at 6dB
  • Package: 8-pin MSOP (MM)

Descriptions:

The LM4871MM is designed for battery-powered applications, offering high efficiency with low power consumption. It features a shutdown mode to minimize power usage when inactive.

Features:

  • Low Quiescent Current (4mA typical)
  • Shutdown Mode (0.6μA current)
  • Thermal Shutdown Protection
  • No Output Coupling Capacitors Required
  • Improved PSRR (Power Supply Rejection Ratio)
  • Short-Circuit and Thermal Protection

This amplifier is commonly used in portable audio devices such as mobile phones, PDAs, and portable media players.

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