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The LM386 is a power amplifier designed for use in low voltage 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 1 and 8 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. The quiescent power drain is only 24 milliwatts when operating from a 6 volt supply, making the LM386 ideal for battery operation
LM386 Pinout
LM386 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | GAIN | Gain Pin |
| 2 | INV-IN | Inverting Input Pin |
| 3 | NON-INV-IN | Non-Inverting Input Pin |
| 4 | GND | Ground Pin |
| 5 | Vout | Output Voltage Pin |
| 6 | Vs | Supply Voltage Pin |
| 7 | BYPASS | Bypass Pin |
| 8 | Gain | Gain Pin |
LM386 Key Features
- Battery operation
- Minimum external parts
- Wide supply voltage range: 4V–12V or 5V–18V
- Low quiescent current drain: 4 mA
- Voltage gains from 20 to 200
- Ground referenced input
- Self-centering output quiescent voltage
- Low distortion
Application
- AM-FM radio amplifiers
- Portable tape player amplifiers
- Intercoms
- TV sound systems
- Line drivers
- Ultrasonic drivers
- Small servo drivers
- Power converter
You can download this datasheet for LM386 Low Voltage Audio Amplifier 250mW/6V – Datasheet from the link given below:
