TPA731DGN The TPA731DGN from Texas Instruments is a 700mW mono Class-AB audio amplifier designed for low-voltage applications. It operates with analog input and features differential inputs.
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TPA731DGN

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Mfr Name: Texas Instruments
Texas Instruments
The TPA731DGN from Texas Instruments is a 700mW mono Class-AB audio amplifier designed for low-voltage applications. It operates with analog input and features differential inputs.
✓ Total Stock: 857 pcs

TPA731DGN Available from 1 distributor

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857 pcs
857 pcs On Request 1 On Request On Request 2003 On Request On Request

TPA731DGN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Halogen Free
SVHC Present

TPA731DGN Description

Short technical summary and product information.

The TPA731DGN is a 700-mW, mono, analog input Class-AB audio amplifier with differential inputs from Texas Instruments. It is designed for low-voltage applications requiring internal speakers.

 

This amplifier operates with a wide supply voltage range of 2.5 V to 5.5 V. At a 5V supply, it can deliver 700mW of output power into an 8Ω load with a THD+N of 0.5% at 1 kHz. At a 3.3V supply, it provides 250mW into an 8Ω load. The device features an ultralow supply current of 1.5 nA in shutdown mode, making it suitable for power-sensitive applications.

 

The TPA731DGN utilizes a bridge-tied load (BTL) configuration, which eliminates the need for external output coupling capacitors in most applications. This is particularly beneficial for small, battery-powered equipment. The amplifier is characterized out to 20 kHz but is optimized for narrower band applications, such as those found in wireless communications.

 

Available in an 8-pin SOIC package and a surface-mount MSOP package, the TPA731DGN offers flexible integration options. The MSOP package reduces board space by 50% and height by 40% compared to standard SOIC packages. It includes thermal and short-circuit protection.

TPA731DGN Quick Information

Product Type: Audio Amplifier
Canonical Name: TPA731DGN Class-AB Audio Amplifier
Subcategory: General-Purpose Audio Amplifiers

TPA731DGN Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1
REACH Status: REACH Unaffected
Lead Free: Yes

TPA731DGN Features

  • 700mW mono Class-AB audio amplifier.
  • Wide 2.5V to 5.5V supply voltage.
  • Low shutdown current of 1.5 nA.
  • BTL configuration eliminates output capacitors.
  • Surface-mount SOIC and MSOP packages.

TPA731DGN Applications

  • Ideal for low-voltage audio systems.
  • Suitable for battery-powered devices.
  • Used in wireless communication devices.
  • Enables compact speaker designs.

TPA731DGN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output power of the TPA731DGN?

The TPA731DGN can deliver 700 mW into an 8 Ω load at a 5 V supply and 250 mW into an 8 Ω load at a 3.3 V supply.

What is the operating supply voltage range for the TPA731DGN?

The TPA731DGN operates with an analog supply voltage between 2.5 V and 5.5 V.

What is the THD + N at 1 kHz for the TPA731DGN?

The THD + N at 1 kHz for the TPA731DGN is 0.5%.

What is the minimum load impedance for the TPA731DGN?

The minimum load impedance for the TPA731DGN is 8 Ω.

What is the operating temperature range of the TPA731DGN?

The TPA731DGN has an operating temperature range of -40 °C to 85 °C.

What is the shutdown current of the TPA731DGN?

The TPA731DGN has an ultralow supply current of 1.5 nA in shutdown mode.

What package types are available for the TPA731DGN?

The TPA731DGN is available in 8-pin SOIC and 8-pin HVSSOP (MSOP) surface-mount packages.

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