Texas Instruments TPA122DR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.06 | $1.06 |
| 15+ | $1.03 | $15.45 |
| 25+ | $1.01 | $25.25 |
| 50+ | $0.95 | $47.50 |
| 100+ | $0.84 | $84.00 |
| N+ | $0.17 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Marketplace | Cut Tape (CT) |
| Part Status | Active |
| Type | Class AB |
| Output Type | Headphones, 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 70mW x 2 @ 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-SOIC |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| ROHS |  |
The TPA122DR is a stereo Class AB headphone amplifier designed for portable audio applications. Operating from 2.5V to 5.5V, it delivers 70mW per channel into 8Ω loads with low distortion. Integrated depop circuitry eliminates power-up clicks, while short-circuit and thermal protection ensure reliability. Its shutdown mode conserves battery life, making it ideal for smartphones, media players, and intercoms.
- Low Voltage Operation: Works from 2.5V to 5.5V, compatible with single-cell batteries.
- Integrated Depop: Eliminates audible noise during power transitions for cleaner audio.
- Robust Protection: Short-circuit and thermal protection prevent damage in fault conditions.
- Compact Package: 8-SOIC footprint saves board space in portable designs.
Portable Media Players
The TPA122DR's low 2.5V minimum supply and 70mW per channel output provide clear stereo audio for MP3 players and handheld gaming consoles, with depop circuitry ensuring noise-free startup.
Smartphone Accessories
Its small 8-SOIC package and shutdown mode extend battery life in headphone dongles and audio adapters, while short-circuit protection safeguards against cable faults.
Laptop Audio Amplifiers
With a 5.5V maximum supply, the TPA122DR integrates easily into laptop audio circuits to drive internal speakers or headphone jacks, offering thermal protection for sustained use.
Intercom Systems
The stereo output and low distortion make it suitable for two-way intercom audio paths, operating reliably across -40°C to 85°C.
Alarm and Notification Drivers
Its shutdown feature allows power savings in standby, while the 70mW output is sufficient for audible alerts in security systems.
DIY Audio Projects
Hobbyists can use the TPA122DR for compact stereo amplifiers due to its simple external component count and robust protection features.
- Q: What is the typical output power of the TPA122DR?
- A: The TPA122DR delivers 70mW per channel into 8Ω loads, ideal for headphone applications.
- Q: What is the supply voltage range?
- A: It operates from 2.5V to 5.5V, making it suitable for battery-powered devices.
- Q: Does the TPA122DR include pop suppression?
- A: Yes, it features depop circuitry to minimize audible clicks during power-up and shutdown.
- Q: What protection features are built in?
- A: It includes short-circuit and thermal protection for reliable operation.
- Q: Can this amplifier drive stereo headphones?
- A: Yes, it is a 2-channel (stereo) headphone amplifier.
TPA122DR.pdf
- Q: What is the typical output power of the TPA122DR?
- A: The TPA122DR delivers 70mW per channel into 8Ω loads, ideal for headphone applications.
- Q: What is the supply voltage range?
- A: It operates from 2.5V to 5.5V, making it suitable for battery-powered devices.
- Q: Does the TPA122DR include pop suppression?
- A: Yes, it features depop circuitry to minimize audible clicks during power-up and shutdown.
- Q: What protection features are built in?
- A: It includes short-circuit and thermal protection for reliable operation.
- Q: Can this amplifier drive stereo headphones?
- A: Yes, it is a 2-channel (stereo) headphone amplifier.
