LM383AT Texas Instruments Integrated Circuit (Transistor Outline, Vertical) In Stock
The LM383AT is a monolithic 11 W single-channel audio power amplifier from Texas Instruments with 0.2% harmonic distortion and 30 kHz bandwidth. It comes in a 5-pin TO-220 ZIP package ideal for heat-sink mounting in compact audio designs. Available in stock worldwide with competitive pricing and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Transistor Outline, Vertical
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LM383AT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Non-compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 11 W nominal output power with only 0.2% harmonic distortion for high-fidelity mono audio amplification
- 30 kHz audio bandwidth covering the full audible range and beyond, suitable for high-quality speaker driver applications
- 5-pin TO-220 ZIP package with easy heat-sink attachment for thermal management in continuous high-power operation
Applications
The LM383AT is designed for consumer audio equipment such as car radios, portable speakers, and TV audio output stages where up to 11 W of single-channel audio power is required. Its 0.2% total harmonic distortion and 30 kHz bandwidth make it suitable for high-fidelity applications that demand clean sound reproduction. The TO-220 ZIP package allows direct attachment to a heat sink, making thermal management straightforward for continuous-duty amplifier designs.
Specifications
| Reach Compliance Code | Unknown |
| YTEOL | 0 |
| Bandwidth-Nom | 30kHz |
| Consumer IC Type | AUDIO AMPLIFIER |
| Harmonic Distortion | 0.2% |
| JESD-30 Code | R-PSFM-T5 |
| JESD-609 Code | e0 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Output Power-Nom | 11W |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | ZIP5,.15,.2,67TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Supply Current-Max | 80mA |
| Supply Voltage-Max (Vsup) | 20V |
| Supply Voltage-Min (Vsup) | 5V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Non-compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM383AT:
Frequently Asked Questions
What output power and distortion level does the LM383AT deliver in a typical car audio application?
The LM383AT delivers 11 W nominal output power with a total harmonic distortion of just 0.2%, making it suitable for car radio and in-dash audio systems. Its single-channel design and TO-220 ZIP package allow straightforward integration into the vehicle's 12 V electrical system with an appropriate heat sink for continuous operation.
How does the LM383AT's 30 kHz bandwidth benefit audio designs compared to narrower-bandwidth amplifiers?
A 30 kHz bandwidth exceeds the 20 kHz upper limit of human hearing, ensuring flat frequency response across the full audible range from 20 Hz to 20 kHz. This headroom prevents rolloff at high audio frequencies, reducing phase distortion and improving transient response for musical content with fast attack characteristics such as drums or cymbals.
Which thermal management approach is recommended for the LM383AT TO-220 ZIP package in a continuous 11 W design?
For continuous 11 W output, the LM383AT in its 5-pin TO-220 ZIP package should be bolted to an aluminum heat sink with at least 5 °C/W thermal resistance using thermal compound. Without a heat sink, the junction temperature can quickly exceed the 150 °C maximum, so a heat sink rated for the expected ambient temperature and duty cycle is mandatory for reliable long-term operation.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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