Texas Instruments TPA731D Audio Amplifiers
Mono, Class-AB audio amplifier IC delivering 700mW output power.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
TPA731D
Detailed Description
Mono, Class-AB audio amplifier IC delivering 700mW output power. Features differential input and active-high shutdown. Operates from a 2.5V to 5.5V single supply with a maximum supply current of 2.5mA. Offers a 1.4MHz gain bandwidth product and 85dB PSRR. Packaged in an 8-SOIC (D) with dimensions of 5mm x 4mm x 1.5mm, operating from -40°C to 85°C. RoHS compliant and lead-free.
Package
D
Key Features
Package: D; Number of Channels: 1
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
TPA731D Datasheet
Quick Jump:
Technical Specifications
Texas Instruments TPA731D Audio Amplifiers technical specifications.
General
RoHS
Yes
Number of Channels
1
Package / Case
8-SOIC
Packaging
Rail/Tube
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.5V ~ 5.5V
Package
D
Gain Bandwidth Product
1.4MHz
Height
1.5mm
Alternate Parts Comparison (TPA731D vs TPA6139A2RGTR vs TPA6111A2D vs INA134UAG4)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C |
| Supply Voltage | 2.5V ~ 5.5V | 3V ~ 3.6V | 2.5V ~ 5.5V | 18V |
| RoHS | Yes | Yes | Yes | Yes |
| Package | D | VQFN EP | D | D |
| Package / Case | 8-SOIC | 16-VFQFN Exposed Pad | 8-SOIC | -- |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | -- |
| Number of Channels | 1 | -- | 2 | 1 |
| Features | Differential Inputs, Short-Circuit and Thermal Protection, Shutdown | Depop, Mute, Short-Circuit and Thermal Protection | Depop, Short-Circuit and Thermal Protection, Shutdown | -- |
| Lead Free | Lead Free | -- | Lead Free | Lead Free |
| Max Output Power X Channels Load | 700mW x 1 @ 8Ohm | 25mW x 2 @ 32Ohm | 150mW x 2 @ 16Ohm | -- |
| Output Type | 1-Channel (Mono) | 2-Channel Stereo | Headphones, 2-Channel (Stereo) | -- |
| Package Quantity | 75 | -- | 75 | 75 |
| Action |
Texas Instruments TPA731D Audio Amplifiers Overview
Mono, Class-AB audio amplifier IC delivering 700mW output power. Features differential input and active-high shutdown. Operates from a 2.5V to 5.5V single supply with a maximum supply current of 2.5mA. Offers a 1.4MHz gain bandwidth product and 85dB PSRR. Packaged in an 8-SOIC (D) with dimensions of 5mm x 4mm x 1.5mm, operating from -40°C to 85°C.
RoHS compliant and lead-free.
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