TPA3125D2N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The TPA3125D2N is a dual-channel Class-D audio amplifier from Texas Instruments delivering 36W nominal output power at 26 dB gain across a 22 kHz audio bandwidth, in a 20-pin DIP package. It drives two stereo speaker channels with high efficiency, reducing heat dissipation and eliminating bulky heatsinks. Ideal for powered speaker systems, home audio receivers, and multimedia applications requiring compact, high-power audio amplification.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- TPA3125D2N Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel stereo Class-D amplifier with 36W nominal output power per channel
- 26 dB voltage gain with 22 kHz full-range audio bandwidth for high-fidelity reproduction
- High switching efficiency minimizes heat generation, reducing or eliminating heatsink requirements
- 20-pin DIP package (R-PDIP-T20) enabling easy through-hole assembly and prototyping
- Pb-free and RoHS compliant (JESD-609 e4) for environmentally responsible designs
- Two independent audio channels for stereo speaker drive from a single IC
Applications
The TPA3125D2N is widely used in powered desktop speakers, multimedia PC audio systems, home theater receivers, and portable PA systems where efficient stereo amplification with minimal external cooling is required. Its Class-D switching architecture and 36W output power make it ideal for cost-effective, high-efficiency audio designs in consumer and commercial audio equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Bandwidth-Nom | 22kHz |
| Consumer IC Type | CLASS D AUDIO AMPLIFIER |
| Gain | 26dB |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Output Power-Nom | 36W |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max | 30mA |
| Supply Voltage-Max (Vsup) | 26V |
| Supply Voltage-Min (Vsup) | 10V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output power and gain of the TPA3125D2N?
The TPA3125D2N delivers 36W nominal output power with a 26 dB gain across a 22 kHz audio bandwidth, providing robust stereo amplification suitable for powered speaker systems and multimedia audio applications.
Does the TPA3125D2N require a heatsink?
The TPA3125D2N uses a high-efficiency Class-D switching amplifier topology that significantly reduces power dissipation compared to linear amplifiers, often allowing operation without a heatsink depending on the output power level and ambient temperature.
What package is the TPA3125D2N available in?
The TPA3125D2N is available in a 20-pin dual in-line package (DIP-20, R-PDIP-T20), making it suitable for through-hole PCB assembly and easy prototyping in stereo audio amplifier applications.
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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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