LM388 1.5W Audio Power Amplifier – Datasheet

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The LM388 is an audio amplifier designed for use in medium power consumer applications. The gain is internally set to 20 to keep the external part count low, but the addition of an external resistor and capacitor between pins 2 and 6 will increase the gain to any value up to 200. The inputs are ground referenced while the output is automatically biased to one-half the supply voltage.

LM388 Pinout

LM388 Pin Configuration

Pin NoPin NameDescription
1BYPASSBypass Pin
2GAINGain Pin
3GNDGround Pin
4GNDGround Pin
5GNDGround Pin
6GAINGain Pin
7INV-INInverting Input Pin
8NON-INV-INNon-Inverting Input Pin
9BOOTSTRAPBootstrap Pin
10GNDGround Pin
11GNDGround Pin
12GNDGround Pin
13VoutOutput Voltage
14VsSupply Voltage

LM388 Key Features

  • Minimum external parts
  • Wide supply voltage range
  • Excellent supply rejection
  • Ground referenced input
  • Self-centering output quiescent voltage
  • Variable voltage gain
  • Low distortion
  • Fourteen pins dual-in-line package
  • Low voltage operation, 4V

Application

  • AM-FM radio amplifiers
  • Portable tape player amplifiers
  • Intercoms
  • TV sound systems
  • Lamp drivers
  • Line drivers
  • Ultrasonic drivers
  • Small servo drivers
  • Power converters

You can download this datasheet for LM388 1.5W Audio Power Amplifier – Datasheet from the link given below: