Audio Power Amplifier - LM386N-1, Low Voltage
LM386 Low Voltage Audio Power Amplifier
The LM386 is a mono low voltage amplifier that can be used in a variety of applications. It can drive loads from 4 Ω to 32 Ω. The gain is internally set to 20 but it can be modified from 20 to 200 by placing a resistor and capacitor between pins 1 and 8.
As this is an Op Amp it can be used in different configurations to fit in several applications. The internal gain setting resistor allows the LM386 to be used in a very low part count system. In addition a series resistor can be placed between pins 1 and 5 to modify the gain and frequency response for specific applications.
These are found in many small audio amplifiers and even tiny pedal sized guitar amplifiers! There are tons of possibilities for this little Op Amp.
Accessory Items:
| Analog Input Voltage (Vi) | -0.4 V to 0.4 V | |
| Bandwidth (BW) | 300 kHz | |
| Harmonic Distortion | 0.2 % | |
| Input Bias Current (IB) | 250 nA | |
| Input Resistance (RIN) | 50 kΩ | |
| Item Height | 0.288 in. | |
| Item Length | 0.386 in. | |
| Item Width | 0.33 in. | |
| Operating Free-air Temperature (Toper) | 0°C to 70°C | |
| Operating Supply Voltage (VS) | 4 V - 12 V | |
| Output Power (POut) @ VS = 6 V | ≥ 250 mW, 325 mW typical | |
| Output Power (POut) @ VS = 9 V | ≥ 500 mW, 700 mW typical | |
| Output Power (POut) @ VS = 16 V | ≥ 700 mW, 100 mW typical | |
| Power Supply Rejection Ratio (psrr) | 50 dB | |
| Quiescent Current (IQ) | ≤ 8 mA, 4 mA typical | |
| Speaker Impedance | 4 Ω | |
| Supply voltage (VCC) | 4 V - 12 V | |
| Thermal Resistance, junction to ambient (RθJA) | 53.4°C/W | |
| Thermal Resistance, junction to board (RθJB) | 30.6°C/W | |
| Thermal Resistance, junction to case (RθJC) | 42.1°C/W | |
| Voltage Gain (AV) | 26 dB |
| Packaging Dimensions | 0.386 in. × 0.33 in. × 0.288 in. | |
| Weight (Packaging) | 0.001 lbs. |
 Specification Sheet | All Models |
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