Texas Instruments TPA122D
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 15+ | $1.57 | $23.55 |
| 25+ | $1.54 | $38.50 |
| 50+ | $1.45 | $72.50 |
| 100+ | $1.28 | $128.00 |
| N+ | $0.26 | 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 | 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 TPA122D is a stereo Class AB audio amplifier from Texas Instruments, delivering 70mW per channel into 8Ω loads. Operating from 2.5V to 5.5V, it features depop circuitry for click-free startup, short-circuit and thermal protection, and a shutdown mode for power efficiency. Housed in an 8-SOIC package, it is ideal for portable radios, alarm clocks, and toys requiring low-power audio amplification.
- Low Power: Ideal for battery-operated devices with shutdown mode to conserve energy.
- Compact Package: 8-SOIC is easy to handle and suitable for small PCBs.
- Protection Features: Short-circuit and thermal shutdown ensure long-term reliability.
- Pop-Free Operation: Depop circuitry eliminates audible clicks during power transitions.
Portable Radios
The TPA122D's 70mW per channel into 8Ω provides sufficient volume for small speakers in pocket radios, with low distortion for clear AM/FM reception.
Alarm Clocks
Its shutdown mode and depop circuitry ensure quiet startup and power savings in alarm clock radios, while short-circuit protection adds durability.
Toy Audio Modules
The compact 8-SOIC package and low voltage operation make it ideal for battery-powered toys requiring simple audio output.
Intercom Systems
Thermal protection and robust design allow continuous operation in intercoms, with shutdown for idle power reduction.
Line Output Drivers
The stereo output can drive line-level signals to external amplifiers in home audio systems with minimal noise.
DIY Audio Projects
Hobbyists can easily integrate this amplifier into custom circuits for small speakers or headphone outputs, thanks to its simple pinout.
- Q: What is the output power of the TPA122D?
- A: It delivers 70mW per channel into 8Ω loads, suitable for small speakers or headphones.
- Q: What is the supply voltage range?
- A: It operates from 2.5V to 5.5V, compatible with battery-powered systems.
- Q: Does it include thermal protection?
- A: Yes, it features short-circuit and thermal protection for reliable operation.
- Q: What package is used?
- A: It comes in an 8-SOIC package, easy to solder and widely available.
- Q: Is it suitable for portable devices?
- A: Yes, its low power consumption and shutdown mode make it ideal for battery-operated audio gear.
TPA122D.pdf
- Q: What is the output power of the TPA122D?
- A: It delivers 70mW per channel into 8Ω loads, suitable for small speakers or headphones.
- Q: What is the supply voltage range?
- A: It operates from 2.5V to 5.5V, compatible with battery-powered systems.
- Q: Does it include thermal protection?
- A: Yes, it features short-circuit and thermal protection for reliable operation.
- Q: What package is used?
- A: It comes in an 8-SOIC package, easy to solder and widely available.
- Q: Is it suitable for portable devices?
- A: Yes, its low power consumption and shutdown mode make it ideal for battery-operated audio gear.
