LM4873MTEX/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments LM4873MTEX/NOPB is a dual-channel audio amplifier IC with 20 kHz bandwidth, 1% THD, and 97 dB SNR in a 20-pin SOIC package. Designed for stereo speaker amplification in portable consumer electronics.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- LM4873MTEX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7600(MOQ 500)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM4873MTEX/NOPB?
- Dual-channel stereo audio amplification up to 20 kHz bandwidth for full-range speaker output
- 97 dB signal-to-noise ratio delivering clean audio reproduction in portable and desktop applications
- 1% total harmonic distortion maintaining audio fidelity across typical consumer power levels
- 20-pin SOIC package enabling compact stereo amplifier designs with minimal external components
What is LM4873MTEX/NOPB used for?
The LM4873MTEX/NOPB is deployed in portable speakers, laptop computers, and multimedia docking stations requiring dual-channel audio amplification with low distortion. Its 20 kHz bandwidth and 97 dB SNR make it suitable for consumer-grade stereo audio systems, desktop multimedia speakers, and clock radios. Engineers also use it in automotive infotainment headunits and intercom systems where compact 20-pin SOIC packaging and low external component count are priorities.
What are the specifications of LM4873MTEX/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Bandwidth-Nom | 20kHz |
| Consumer IC Type | AUDIO AMPLIFIER |
| Harmonic Distortion | 1% |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Noise Figure-Nom | 97dB |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Output Power-Nom | 5W |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 15mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the LM4873MTEX/NOPB datasheet?
LM4873MTEX/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM4873MTEX/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LM4873MTEX/NOPB's 97 dB SNR compare to typical consumer audio amplifier requirements?
The LM4873MTEX/NOPB's 97 dB signal-to-noise ratio exceeds the typical 85 dB to 90 dB threshold for consumer audio equipment, providing audibly clean output even at low volume levels. This performance is sufficient for stereo speaker systems in laptops, tablets, and multimedia boxes where background noise must remain inaudible to users.
Can LM4873MTEX/NOPB drive 4-ohm speakers directly in a battery-powered portable speaker design?
The LM4873MTEX/NOPB is designed to drive speaker loads in the 4-ohm to 8-ohm range with up to 1% THD at rated output power. Its 2-channel architecture means both left and right 4-ohm speakers can be driven simultaneously from a single supply between 2.4 V and 5.5 V, suitable for USB-powered or Li-ion battery portable speaker enclosures.
For a multimedia laptop design with tight PCB space, what board area does the 20-pin SOIC package of LM4873MTEX/NOPB require?
The LM4873MTEX/NOPB 20-pin SOIC package occupies approximately 12.8 mm x 7.5 mm PCB area with standard 1.27 mm lead pitch. This footprint supports dual stereo channels in a single device, reducing the PCB area compared to implementing two separate mono amplifiers and eliminating the need for 4 additional bypass capacitors.
Which consumer electronics applications benefit most from the LM4873MTEX/NOPB dual-channel architecture?
Stereo playback systems such as laptop speakers, portable Bluetooth speakers, and multimedia monitors benefit most from the LM4873MTEX/NOPB's 2-channel design with shared 20 kHz bandwidth per channel. The integrated dual architecture reduces chip count by 1, simplifies PCB routing for left and right audio paths, and maintains matched channel performance within the same silicon die.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $1.9800 | $990.00 |
| 1000+ | $1.8700 | $1870.00 |
| 10000+ | $1.7600 | $17600.00 |
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