LM386 LOW VOLTAGE AUDIO POWER AMPLIFIER

The LM386 Low Voltage Audio Power Amplifier is a popular IC used to amplify low-level audio signals to drive speakers or headphones. It is commonly used in battery-powered audio devices due to its low power consumption and simple external component requirements.

Key Features of LM386 Low Voltage Audio Power Amplifier:

• • Low Power Consumption: Operates with low quiescent current, making it ideal for battery-powered devices.
  • Wide Voltage Range: Can operate with supply voltages from 4V to 12V, or 5V to 18V depending on the variant.
  • Adjustable Gain: Gain can be adjusted from 20 to 200 using external components.
  • Minimal External Components: Requires only a few external capacitors and resistors for basic operation.
  • Built-in Output Protection: Features built-in protection against overheating and short-circuit conditions.

Technical Specifications of LM386 Low Voltage Audio Power Amplifier:

• • Model: LM386
  • Supply Voltage: 4V to 12V (standard) or 5V to 18V (higher voltage variants)
  • Output Power: 0.325W at 8Ω with 6V supply
  • Gain: Adjustable from 20 to 200
  • Quiescent Current: 4mA typical
  • Operating Temperature Range: 0°C to 70°C
  • Package: DIP-8, SOIC-8

Mechanical Specifications of LM386 Low Voltage Audio Power Amplifier:

• • Package Type: Dual Inline Package (DIP-8) or Small Outline Integrated Circuit (SOIC-8)
  • Pin Count: 8 pins
  • Mounting Style: Through-hole or surface-mount depending on the package

Schematic Diagram, Connection, Wiring, and Pinout of LM386 Low Voltage Audio Power Amplifier:

• • Pin Configuration:
  • 1: Gain (input)
  • 2: Inverting Input
  • 3: Non-Inverting Input
  • 4: Ground
  • 5: Output
  • 6: VCC (Power Supply)
  • 7: Bypass
  • 8: Gain (input)
  • Basic Wiring: Connect the input signal to the non-inverting input (pin 3), the output to a speaker or headphone (pin 5), and supply voltage to VCC (pin 6). Ground (pin 4) must be connected to the circuit ground.

Datasheet of LM386 Low Voltage Audio Power Amplifier:

• • Refer to the LM386 datasheet for detailed electrical characteristics, application circuits, and recommended operating conditions.

Applications of LM386 Low Voltage Audio Power Amplifier:

• • Audio Amplifiers: Used in small audio amplifier circuits for driving speakers and headphones.
  • Intercoms: Commonly used in intercom systems for amplifying voice signals.
  • Portable Audio Devices: Ideal for battery-powered radios, portable speakers, and other audio devices.
  • DIY Electronics: Popular among hobbyists for various audio amplification projects.

Equivalent of LM386 Low Voltage Audio Power Amplifier:

• • LM380: A higher power version of the LM386 with similar characteristics.
  • TDA2822: A stereo audio amplifier IC with similar specifications.
  • KA2209: Another audio amplifier IC with comparable performance.

Keywords for LM386 Low Voltage Audio Power Amplifier:

• • Audio Amplifier IC
  • Low Voltage Amplifier
  • LM386
  • Speaker Driver
  • Battery-Powered Amplifier

Package Includes:

• • 1 x LM386 Low Voltage Audio Power Amplifier IC