Overview
The LM386N-1/NOPB is a low voltage audio power amplifier produced by Texas Instruments. It is designed for use in low voltage consumer applications and is particularly suited for battery operation due to its low quiescent current drain. The device is available in an 8-pin PDIP package and offers a wide range of features that make it versatile for various audio and other applications.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4 | - | 12 | V |
| Input Voltage (VI) | -0.4 | - | 0.4 | V |
| Operating Free-Air Temperature (TA) | 0 | - | 70 | °C |
| Quiescent Current (IQ) | 4 | 8 | - | mA |
| Output Power (POUT) | 250 | 325 | - | mW |
| Voltage Gain (AV) | - | 26 | - | dB |
| Total Harmonic Distortion (THD) | - | - | 0.2% | - |
| Input Resistance (RIN) | - | - | 50 kΩ | - |
| Input Bias Current (IBIAS) | - | - | 250 nA | - |
Key Features
- Battery operation capability
- Minimum external parts required
- Wide supply voltage range: 4 V to 12 V
- Low quiescent current drain: 4 mA
- Voltage gains from 20 to 200
- Ground-referenced input
- Self-centering output quiescent voltage
- Low distortion: 0.2% at AV = 20, VS = 6 V, RL = 8 Ω, PO = 125 mW, f = 1 kHz
- Available in 8-pin PDIP package
Applications
- AM-FM Radio Amplifiers
- Portable Tape Player Amplifiers
- Intercoms
- TV Sound Systems
- Line Drivers
- Ultrasonic Drivers
- Small Servo Drivers
- Power Converters
Q & A
- What is the typical supply voltage range for the LM386N-1/NOPB?
The typical supply voltage range for the LM386N-1/NOPB is 4 V to 12 V.
- What is the quiescent current of the LM386N-1/NOPB?
The quiescent current of the LM386N-1/NOPB is typically 4 mA.
- How can the gain of the LM386N-1/NOPB be adjusted?
The gain can be adjusted by placing a resistor and capacitor between pins 1 and 8, allowing gains from 20 to 200.
- What is the maximum output power of the LM386N-1/NOPB?
The maximum output power of the LM386N-1/NOPB is 325 mW at VS = 6 V, RL = 8 Ω, and THD = 10%.
- What is the total harmonic distortion (THD) of the LM386N-1/NOPB?
The total harmonic distortion (THD) of the LM386N-1/NOPB is 0.2% at VS = 6 V, RL = 8 Ω, PO = 125 mW, and f = 1 kHz.
- What are the typical applications of the LM386N-1/NOPB?
Typical applications include AM-FM radio amplifiers, portable tape player amplifiers, intercoms, TV sound systems, line drivers, ultrasonic drivers, small servo drivers, and power converters.
- What is the input resistance of the LM386N-1/NOPB?
The input resistance of the LM386N-1/NOPB is 50 kΩ.
- What is the operating free-air temperature range for the LM386N-1/NOPB?
The operating free-air temperature range for the LM386N-1/NOPB is 0°C to 70°C.
- What package types are available for the LM386N-1/NOPB?
The LM386N-1/NOPB is available in an 8-pin PDIP package.
- Is the LM386N-1/NOPB RoHS compliant?
Yes, the LM386N-1/NOPB is RoHS compliant.
