Texas Instruments TPA721DGN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.76 | $1.76 |
| 15+ | $1.70 | $25.50 |
| 25+ | $1.67 | $41.75 |
| 50+ | $1.57 | $78.50 |
| 100+ | $1.39 | $139.00 |
| N+ | $0.28 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Marketplace | Tube |
| Part Status | Active |
| Type | Class AB |
| Output Type | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 700mW x 1 @ 8Ohm |
| Voltage - Supply | 2.5V ~ 5.5V |
| Features | Depop, Short-Circuit and Thermal Protection, Shutdown |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 8-HVSSOP |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad |
| ROHS |
The TPA721DGN is a mono Class AB audio amplifier from Texas Instruments, designed for portable and battery-powered applications. Operating from 2.5V to 5.5V, it delivers 700mW into 8Ω loads with low distortion. Features include Depop circuitry for pop-free startup, short-circuit and thermal protection, and a shutdown mode. Packaged in an 8-HVSSOP with exposed pad for thermal management, it is ideal for Bluetooth speakers, radios, and intercoms.
- High Output Power: Delivers 700mW into 8Ω, suitable for small speakers in portable devices.
- Wide Supply Range: Operates from 2.5V to 5.5V, compatible with USB and battery power.
- Pop-Free Startup: Depop circuitry ensures silent power-up and shutdown.
- Thermal Efficiency: Exposed pad package enhances heat dissipation for reliable operation.
Portable Bluetooth Speaker
The TPA721DGN is ideal for mono Bluetooth speakers, delivering 700mW into 8Ω from a 2.5V-5.5V supply, ensuring loud and clear audio from a single cell battery.
AM/FM Radio
In portable radios, this Class AB amplifier provides efficient mono amplification with Depop, eliminating clicks when switching stations or powering on.
Intercom System
For intercoms, the TPA721DGN offers robust output with short-circuit protection, ensuring reliable voice communication in residential or office systems.
Alarm Driver
In alarm systems, its 700mW output can drive a small speaker for alerts, while thermal protection prevents damage during prolonged use.
DIY Audio Project
Hobbyists can use the TPA721DGN in DIY audio projects due to its simple 8-HVSSOP package and minimal external components, enabling easy prototyping.
Line Driver for Portable Devices
As a line driver, this chip can boost audio signals in portable devices, with shutdown mode to save power when not in use.
- Q: What is the output power of the TPA721DGN?
- A: It delivers 700mW into 8Ω loads, suitable for mono speaker applications.
- Q: What is the supply voltage range?
- A: It operates from 2.5V to 5.5V, making it versatile for battery or USB-powered devices.
- Q: Does it include pop noise reduction?
- A: Yes, it features Depop circuitry to minimize startup and shutdown clicks.
- Q: What protection features are available?
- A: It includes short-circuit and thermal protection for reliable operation.
- Q: What is the amplifier class?
- A: It is a Class AB amplifier, offering low distortion and good audio quality.
- Q: What is the output power of the TPA721DGN?
- A: It delivers 700mW into 8Ω loads, suitable for mono speaker applications.
- Q: What is the supply voltage range?
- A: It operates from 2.5V to 5.5V, making it versatile for battery or USB-powered devices.
- Q: Does it include pop noise reduction?
- A: Yes, it features Depop circuitry to minimize startup and shutdown clicks.
- Q: What protection features are available?
- A: It includes short-circuit and thermal protection for reliable operation.
- Q: What is the amplifier class?
- A: It is a Class AB amplifier, offering low distortion and good audio quality.

TPA721DGN.pdf