TPA3122D2N Texas Instruments In Stock
TPA3122D2N is a 15 W stereo Class-D audio power amplifier IC by Texas Instruments. Key specs: 15 W per channel at 8 ohm, 10 V to 26 V supply range, integrated self-protection, DIP-20 package. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $2.7846(MOQ 100)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPA3122D2N?
- Delivers 15 W per channel into 8 ohm loads from a 10 V to 26 V supply for high-power compact audio designs
- Integrated over-current, over-voltage, and thermal shutdown protection reduce external protection component count
- High-efficiency Class-D switching topology minimizes heat sink requirements compared to Class-AB amplifiers at equal output power
- DIP-20 through-hole package enables quick prototyping and easy field replacement in consumer audio and industrial PA systems
What is TPA3122D2N used for?
The TPA3122D2N is ideal for tabletop and shelf speakers, mini home theaters, and multimedia monitors that require 15 W stereo Class-D amplification from a standard 12 V to 24 V power supply. Its wide 10 V to 26 V supply range and integrated fault protection make it a reliable choice for industrial public-address systems and battery-backed audio notification modules. The through-hole DIP-20 footprint also suits educational kits, DIY audio projects, and rapid prototyping platforms where soldering ease and replaceability are valued.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for TPA3122D2N?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much output power can TPA3122D2N deliver per channel into an 8 ohm speaker load?
The TPA3122D2N delivers up to 15 W per channel into an 8 ohm load when powered from a 24 V supply, providing substantial volume for compact tabletop speakers, multimedia monitors, and small PA systems without requiring an external heat sink in typical operating conditions.
What supply voltage range is compatible with TPA3122D2N for both 12 V and 24 V audio system designs?
TPA3122D2N operates from 10 V to 26 V, covering standard 12 V automotive and desktop adapter rails as well as 24 V industrial power supplies. This broad range allows a single PCB design to serve multiple audio product variants differing only in their supply voltage without changing the amplifier IC.
Which built-in protection features does TPA3122D2N include to guard against fault conditions in unattended installations?
TPA3122D2N integrates over-current protection, over-voltage shutdown, and thermal shutdown that automatically limit or cut output when fault thresholds are exceeded. These 3 protection mechanisms eliminate the need for external protection ICs, reducing BOM cost and improving reliability in 15 W stereo Class-D amplifier designs running continuously at high ambient temperatures.
Is TPA3122D2N a lower-cost alternative to Class-AB amplifiers of similar output power?
For designs needing 15 W per channel at 8 ohm, TPA3122D2N's Class-D topology achieves higher efficiency than Class-AB alternatives, typically above 85%, which reduces heat sink size and thermal design cost. Lower heat dissipation also allows a smaller enclosure, cutting mechanical BOM cost in consumer speaker and multimedia monitor products supplied from 12 V to 24 V rails.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $4.1400 | $414.00 |
| 250+ | $3.9400 | $985.00 |
| 500+ | $2.9450 | $1472.50 |
| 1000+ | $2.8670 | $2866.97 |
| 2500+ | $2.7846 | $6961.50 |
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