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LM4871M Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
LM4871MNS124Yes

LM4871M is a mono bridged audio power amplifier manufactured by National Semiconductor (NS).

The LM4871M is a mono bridged audio power amplifier manufactured by National Semiconductor (NS). Below are the factual details from the Manufactor Datasheet:

Specifications:

  • Output Power: 1.1W (typical) into an 8Ω load at 5V supply.
  • Supply Voltage Range: 2.0V to 5.5V.
  • Quiescent Current: 2.5mA (typical) at 5V supply.
  • THD+N (Total Harmonic Distortion + Noise): 1% (typical) at 1kHz, 1W into 8Ω.
  • Shutdown Current: 0.01μA (typical).
  • Gain: Internally fixed at 6dB.
  • Package: 8-pin SOIC (M).
  • Operating Temperature Range: -40°C to +85°C.

Descriptions:

  • The LM4871M is designed for battery-powered applications requiring high efficiency and low power consumption.
  • It features a bridge-tied load (BTL) configuration, eliminating the need for an output coupling capacitor.
  • Includes thermal shutdown and short-circuit protection.

Features:

  • Bridged Output: No external coupling capacitor required.
  • Low Quiescent Current: Extends battery life in portable applications.
  • Shutdown Mode: Reduces power consumption when inactive.
  • Unity-Gain Stable: No external compensation needed.
  • Improved PSRR (Power Supply Rejection Ratio): Minimizes noise from supply variations.
  • Thermal Shutdown Protection: Prevents overheating.

This information is strictly based on the manufacturer's datasheet.

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