TPA321DGN The TPA321DGN is a mono, analog input Class-AB audio amplifier from Texas Instruments. It is designed for low-voltage applications requiring internal speakers.
Mfr Part #:

TPA321DGN

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The TPA321DGN is a mono, analog input Class-AB audio amplifier from Texas Instruments. It is designed for low-voltage applications requiring internal speakers.
✓ Total Stock: 52,467 pcs
$ Price Range: $0.71

TPA321DGN Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
51,657 pcs
51657 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
810 pcs
810 pcs On Request 1 On Request On Request 13+ On Request On Request

TPA321DGN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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TPA321DGN Description

Short technical summary and product information.

The TPA321DGN is a bridge-tied load (BTL) audio power amplifier developed by Texas Instruments, specifically for low-voltage applications where internal speakers are essential. Operating with a wide power supply range of 2.5 V to 5.5 V, it can deliver up to 350 mW of continuous power into an 8 Ω load at 5 V supply, with less than 1% THD+N.

 

This amplifier is characterized out to 20 kHz but optimized for narrower band applications such as cellular communications. Its BTL configuration eliminates the need for external coupling capacitors on the output, which is particularly beneficial for small, battery-powered equipment. The device features an ultralow supply current of 0.15 µA in shutdown mode, making it suitable for power-sensitive applications.

 

The TPA321DGN is available in an 8-pin HVSSOP surface-mount package. It includes thermal and short-circuit protection for enhanced reliability. The operating temperature range is -40 °C to 85 °C.

TPA321DGN Quick Information

Product Type: Audio Amplifier
Series: TPA321
Canonical Name: TPA321DGN Class-AB Audio Amplifier
Subcategory: General-purpose audio amplifiers

TPA321DGN Compliance

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

TPA321DGN Estimated Pricing

Qty Low High
1+ $0.71 $0.71

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

TPA321DGN Features

  • 700-mW mono Class-AB audio amplifier
  • Wide 2.5-V to 5.5-V supply compatibility
  • 350 mW output power at 5 V, 8 Ω load
  • Ultralow 0.15 µA shutdown current
  • 8-pin HVSSOP surface-mount package

TPA321DGN Applications

  • Ideal for low-voltage audio systems
  • Suitable for battery-powered devices
  • Used in cellular communication devices
  • Enables internal speaker integration

TPA321DGN FAQs

5 frequently asked questions generated from this part’s specifications.
What is the output power of the TPA321DGN at 5V?

The TPA321DGN provides 350 mW of output power into an 8 Ω load when operated at a 5 V supply.

What is the operating voltage range for the TPA321DGN?

The TPA321DGN operates with a wide power supply compatibility ranging from 2.5 V to 5.5 V.

What is the shutdown current of the TPA321DGN?

The TPA321DGN features an ultralow supply current of 0.15 µA in shutdown mode.

What is the operating temperature range for the TPA321DGN?

The TPA321DGN can operate within a temperature range of -40 °C to 85 °C.

What package type is the TPA321DGN available in?

The TPA321DGN is available in an 8-pin HVSSOP (DGN) surface-mount package.

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