2.5-W, mono, 10- to 22-V, analog input Class-AB audio amplifier
Product details
Parameters
Package | Pins | Size
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
Description
The LM380 is a power audio amplifier for consumer applications. In order to hold system cost to a minimum, gain is internally fixed at 34 dB. A unique input stage allows ground referenced input signals. The output automatically self-centers to one-half the supply voltage.
The output is short circuit proof with internal thermal limiting. The package outline is standard dual-in-line. The LM380N uses a copper lead frame. The center three pins on either side comprise a heat sink. This makes the device easy to use in standard PC layouts.
Uses include simple phonograph amplifiers, intercoms, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM-FM radio, small servo drivers, power converters, etc.
A selected part for more power on higher supply voltages is available as the LM384. For more information see SNAA086.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | LM380 2.5W Audio Power Amplifier datasheet (Rev. C) | Apr. 04, 2013 |
| Application note | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | Aug. 26, 2019 | |
| Application note | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | Jun. 27, 2019 | |
| Application note | AN-146 FM Remote Speaker System | May 14, 2004 | |
| Application note | AN-69 LM380 Power Audio Amplifier | May 14, 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| PDIP (NFF) | 14 | View options |
| PDIP (P) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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