TPA3221DDVR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPA3221DDVR is a 100 W stereo / 200 W mono HD analog-input Class-D audio amplifier with 34 dB gain and 108 dB SNR, housed in a 44-pin HTSSOP package rated -40°C to +85°C. The device accepts analog audio inputs directly and delivers high-efficiency Class-D switching to drive 2-ohm to 8-ohm speakers with minimal heatsinking. RoHS-compliant (e4), in stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 45
- Lifecycle
- ACTIVE
- Datasheet
- TPA3221DDVR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3485(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100 W stereo or 200 W mono output power in a single 44-pin HTSSOP IC eliminates external power stages in high-power audio systems
- 108 dB SNR with 34 dB fixed gain delivers high-definition audio fidelity for home theater and pro-audio applications using direct analog inputs
- Class-D switching topology achieves over 90% power efficiency, dramatically reducing heatsink size and enclosure thermal requirements versus Class-AB amplifiers at equivalent output power
- Wide -40°C to +85°C operating range with integrated protection (overcurrent, thermal shutdown, under-voltage) simplifies safe amplifier designs for automotive and industrial audio
Applications
TPA3221DDVR is designed for high-power audio applications including soundbars, home theater receivers, studio monitors, and active speaker systems requiring 100 W per channel from a compact IC solution. Its Class-D efficiency above 90% makes it particularly suited for fanless, passively cooled enclosures where Class-AB amplifiers would require large heatsinks. The -40°C to +85°C operating range also enables its use in automotive in-vehicle entertainment systems and outdoor public address equipment.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2017-07-08 |
| YTEOL | 15 |
| Consumer IC Type | CLASS D AUDIO AMPLIFIER |
| Gain | 34dB |
| JESD-30 Code | R-PDSO-G44 |
| JESD-609 Code | e4 |
| Noise Figure-Nom | 108dB |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Output Power-Nom | 100W |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 30V |
| Supply Voltage-Min (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| 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 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much output power can TPA3221DDVR deliver in stereo versus mono bridged mode?
TPA3221DDVR delivers 100 W per channel in stereo mode into 4-ohm loads, and can be configured as a bridged mono amplifier to output 200 W into an 8-ohm load. This flexibility allows a single IC to scale from a 2-channel stereo system to a high-power mono subwoofer driver without changing the PCB, saving design time and BOM cost for product families requiring different power configurations.
What is the SNR of TPA3221DDVR and how does it compare to typical Class-D amplifiers in a home theater application?
TPA3221DDVR achieves a 108 dB signal-to-noise ratio with a 34 dB gain setting, which surpasses the typical 90 dB to 100 dB SNR of many lower-cost Class-D amplifier ICs. For home theater use, 108 dB SNR means the noise floor is inaudible even with sensitive loudspeakers in a quiet room. This dynamic range is comparable to high-end Class-AB designs, allowing TPA3221DDVR to serve audiophile and near-professional audio applications.
How does TPA3221DDVR's Class-D efficiency reduce the heatsink requirement in a 100 W per channel soundbar design?
TPA3221DDVR achieves over 90% power efficiency, meaning at 100 W output only about 10 W to 20 W is dissipated as heat compared to 50 W to 80 W for a Class-AB amplifier at the same output power. This 4x to 5x reduction in heat dissipation allows designers to use a small aluminum extrusion or even rely on PCB copper pour as a heatsink instead of a large finned heatsink, saving 20 mm to 40 mm of internal depth in slim soundbar enclosures.
What speaker impedance loads can TPA3221DDVR drive and what protection features prevent damage in consumer applications?
TPA3221DDVR is specified to drive speaker loads from 2 ohms to 8 ohms, covering the full range of consumer and professional loudspeaker configurations. Built-in protection includes overcurrent limiting, thermal shutdown triggered above the junction temperature limit, and under-voltage lockout below the minimum supply threshold. These on-chip protections eliminate the need for external fuses or thermistors in most consumer soundbar and active speaker designs, reducing BOM complexity.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.4200 | $3.42 |
| 5+ | $2.2230 | $11.11 |
| 138+ | $1.4582 | $201.23 |
| 179+ | $1.4034 | $251.21 |
| 223+ | $1.3485 | $300.72 |
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