Overview
The LM380N-8/NOPB is a 2.5W audio power amplifier produced by Texas Instruments. It is designed for consumer applications and is known for its simplicity and cost-effectiveness. The amplifier features a fixed voltage gain of 34 dB and is capable of operating over a wide supply voltage range of 10V to 22V. The LM380N-8/NOPB is packaged in an 8-pin PDIP (Plastic Dual In-Line Package) and is suitable for various audio applications due to its low distortion and high input impedance.
Key Specifications
| Parameter | Value |
|---|---|
| Analog Supply (V) | 10-22 Max |
| Architecture | Class AB |
| Audio Input Type | Analog Input |
| Control Interface | Hardware |
| Quiescent Current (Iq) | 7 mA (Typ/Max) |
| Load (Min) | 4 ohms |
| Operating Temperature Range | 0 to 70°C |
| PSRR | 38 dB |
| Package Type | PDIP (8 pins) |
| Speaker Channels | Mono Max |
| THD + N @ 1 kHz | 0.2 % |
| Output Power | 2.5 W |
| Power Dissipation | 1.67 W |
Key Features
- Wide Supply Voltage Range: 10V-22V
- Low Quiescent Power Drain: 0.13W (VS = 18V)
- Voltage Gain Fixed at 50
- High Peak Current Capability: 1.3A
- Input Referenced to GND
- High Input Impedance: 150kΩ
- Low Distortion
- Quiescent Output Voltage is at One-Half of the Supply Voltage
- Standard Dual-In-Line Package
- Short Circuit Proof with Internal Thermal Limiting
Applications
The LM380N-8/NOPB is versatile and can be used in a variety of consumer and industrial applications, including:
- Simple phonograph amplifiers
- Intercoms
- Line drivers
- Teaching machine outputs
- Alarms
- Ultrasonic drivers
- TV sound systems
- AM-FM radio
- Small servo drivers
- Power converters
Q & A
- What is the maximum output power of the LM380N-8/NOPB?
The maximum output power is 2.5W. - What is the operating temperature range of the LM380N-8/NOPB?
The operating temperature range is 0 to 70°C. - What is the package type of the LM380N-8/NOPB?
The package type is 8-pin PDIP (Plastic Dual In-Line Package). - What is the quiescent current of the LM380N-8/NOPB?
The quiescent current is 7 mA (Typ/Max). - What is the minimum load impedance for the LM380N-8/NOPB?
The minimum load impedance is 4 ohms. - Is the LM380N-8/NOPB RoHS compliant?
Yes, the LM380N-8/NOPB is RoHS compliant. - What is the voltage gain of the LM380N-8/NOPB?
The voltage gain is fixed at 34 dB. - What are some common applications of the LM380N-8/NOPB?
Common applications include simple phonograph amplifiers, intercoms, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM-FM radio, and small servo drivers. - Does the LM380N-8/NOPB have internal thermal limiting?
Yes, the LM380N-8/NOPB has internal thermal limiting and is short circuit proof. - What is the power dissipation of the LM380N-8/NOPB?
The power dissipation is 1.67 W.
