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LM4861M Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
LM4861MNS101Yes

LM4861M is a manufacturer by National Semiconductor (NSC).

The LM4861M is a manufacturer by National Semiconductor (NSC). Here are its specifications, descriptions, and features:

Specifications:

  • Type: Audio Power Amplifier
  • Output Power: 1.1W (typical) into 8Ω at 5V
  • Supply Voltage Range: 2.0V to 5.5V
  • Quiescent Current: 4mA (typical)
  • THD+N (Total Harmonic Distortion + Noise): 1% (typical) at 1kHz, 1W into 8Ω
  • Shutdown Current: 0.6μA (typical)
  • Gain: Fixed at 6dB
  • Operating Temperature Range: -40°C to +85°C
  • Package: 8-Pin SOIC (M)

Descriptions:

The LM4861M is a bridge-tied load (BTL) audio power amplifier designed for low-voltage applications. It is optimized for driving speakers in portable devices such as mobile phones, PDAs, and other battery-powered audio systems. The device features a low-power shutdown mode to conserve battery life.

Features:

  • Bridge-Tied Load (BTL) Configuration: Eliminates the need for output coupling capacitors.
  • Low Voltage Operation: Works efficiently from 2.0V to 5.5V.
  • Low Quiescent Current: Enhances battery life.
  • Thermal Shutdown Protection: Prevents damage from overheating.
  • Space-Saving Package: 8-Pin SOIC (M) for compact designs.
  • Improved PSRR (Power Supply Rejection Ratio): Reduces noise from power supply variations.
  • No External Compensation Required: Simplifies circuit design.

This information is based on the manufacturer's datasheet.

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