TPA3138D2PWP The Texas Instruments TPA3138D2PWP is an analog input Class-D audio amplifier. It delivers up to 10W stereo output power with a wide supply voltage range.
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TPA3138D2PWP

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPA3138D2PWP is an analog input Class-D audio amplifier. It delivers up to 10W stereo output power with a wide supply voltage range.
✓ Total Stock: 5,166 pcs
$ Price Range: $0.42

TPA3138D2PWP Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
5,166 pcs
5166 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16

TPA3138D2PWP Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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TPA3138D2PWP Description

Short technical summary and product information.

The TPA3138D2PWP from Texas Instruments is an analog input, Class-D audio amplifier designed for home audio, haptics, and piezo applications. It offers flexible power output, capable of delivering 2 x 10 W into a 6-Ω load or 1 x 18.5 W into a 4-Ω load, both at a 12-V supply.

 

This amplifier operates over a wide supply voltage range of 3.5 V to 14.4 V, making it suitable for battery-powered portable devices. Key electrical specifications include a typical THD+N of 0.04% at 1 kHz and a low idle current of 20 mA in 1SPW mode, contributing to longer battery life. The device features inductor-free operation, reducing solution size and cost, and is compliant with EN55013 and EN55022 EMC standards when inductors are not used.

 

Designed for ease of use, the TPA3138D2PWP supports single-ended or differential analog inputs and offers selectable gain settings of 20 dB and 26 dB. It includes integrated protections such as pin-to-pin, pin-to-ground, and pin-to-power short circuit protection, thermal protection, undervoltage protection, and overvoltage protection. The amplifier also features a power limiter and DC speaker protection. It comes in a 28-pin HTSSOP (PWP) package with dimensions of 9.7 mm x 6.4 mm.

 

This device is pin-to-pin compatible with TPA3110D2, TPA3136D2, and TPA3136AD2, offering a flexible upgrade path. Its high Class-D efficiency, exceeding 90%, and the absence of an external heatsink requirement further enhance its suitability for space-constrained designs.

TPA3138D2PWP Quick Information

Product Type: Class-D Audio Amplifier
Series: TPA3138D2
Canonical Name: Texas Instruments TPA3138D2 Class-D Audio Amplifier
Subcategory: Special Purpose

TPA3138D2PWP Compliance

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

TPA3138D2PWP Estimated Pricing

Qty Low High
1+ $0.42 $0.42

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

TPA3138D2PWP Features

  • 10W stereo or 18.5W mono output power.
  • Wide 3.5V to 14.4V supply voltage range.
  • Inductor-free operation reduces solution size.
  • High Class-D efficiency exceeding 90%.
  • Integrated short circuit and thermal protection.

TPA3138D2PWP Applications

  • Ideal for portable audio devices.
  • Suitable for home audio systems.
  • Used in speaker and soundbar designs.
  • Applicable for haptic feedback systems.

TPA3138D2PWP FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

The power stage and analog supply voltage range is 3.5V to 14.4V.

What is the package type?

The TPA3138D2PWP is available in a 28-pin HTSSOP (PWP) package measuring 9.7mm x 6.4mm.

What is the operating temperature range?

-40°C to 85°C.

What is the output power?

10W per channel into 6Ω stereo, or 18.5W into 4Ω mono.

What is the THD+N?

0.04% at 1kHz, 1W into 6Ω.

What is the efficiency?

Greater than 90%.

What is the gain range?

Selectable between 20dB and 26dB.

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