TPA3251D2 The Texas Instruments TPA3251D2 is a high-performance Class-D amplifier. It delivers up to 175W stereo into 4Ω or 350W mono into 2Ω with ultra-low distortion.
Mfr Part #:

TPA3251D2

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPA3251D2 is a high-performance Class-D amplifier. It delivers up to 175W stereo into 4Ω or 350W mono into 2Ω with ultra-low distortion.
✓ Total Stock: 10,762 pcs
$ Price Range: $0.63

TPA3251D2 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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10,762 pcs
10762 pcs On Request 1 On Request On Request On Request On Request On Request

TPA3251D2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade

TPA3251D2 Description

Short technical summary and product information.

The TPA3251D2 from Texas Instruments is a high-performance Class-D power amplifier designed for premium sound quality and high efficiency. It features an advanced integrated feedback design with high-speed gate driver error correction, enabling ultra-low distortion across the audio band.

 

This amplifier can drive up to 2 x 175 W into a 4-Ω load or 2 x 220 W into a 3-Ω load in stereo BTL configuration, and up to 350 W mono into a 2-Ω load in PBTL configuration. It offers a signal bandwidth up to 100 kHz for high-frequency content from HD sources and achieves ultra-low total harmonic distortion plus noise (THD+N) of 0.005% at 1 W into 4 Ω.

 

The TPA3251D2 operates over a wide 12-V to 36-V supply voltage range and boasts 90% efficient Class-D operation. It includes self-protection features such as undervoltage, overtemperature, clipping, and short circuit protection with error reporting. The device is available in a 44-HTSSOP package with dimensions of 6.10mm x 14.00mm.

TPA3251D2 Quick Information

Product Type: Class-D Amplifier
Canonical Name: TPA3251D2 Class-D Amplifier
Subcategory: Class-D Amplifier

TPA3251D2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TPA3251D2 Estimated Pricing

Qty Low High
1+ $0.63 $0.63

Estimated market price range - modelled values for guidance only, not live distributor offers.

TPA3251D2 Features

  • High output power up to 350W mono.
  • Ultra-low distortion at 0.005% THD+N.
  • Wide 12V to 36V supply voltage range.
  • 90% efficient Class-D operation.
  • Integrated protection features.

TPA3251D2 Applications

  • Suitable for high-end soundbars.
  • Ideal for active speakers and subwoofers.
  • Used in AV receivers and mini combo systems.
  • Enables premium sound quality in audio systems.

TPA3251D2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum output power of the TPA3251D2?

The TPA3251D2 delivers 175W stereo into 4Ω (10% THD+N, BTL), 220W stereo into 3Ω, and 350W mono into 2Ω (PBTL).

What is the THD+N performance of the TPA3251D2?

THD+N is 0.005% at 1W into 4Ω and less than 0.01% to clipping.

What is the supply voltage range for the TPA3251D2?

The supply voltage range is 12V to 36V.

What package is the TPA3251D2 available in?

The TPA3251D2 is available in a HTSSOP package with body size 6.10mm x 14.00mm.

What is the efficiency of the TPA3251D2?

The efficiency is 90% typical at 4Ω.

What is the signal bandwidth of the TPA3251D2?

The signal bandwidth is up to 100kHz.

What is the SNR of the TPA3251D2?

The SNR is greater than 111dB (A-weighted).

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