Description
TPA321DR Texas Instruments - Yeehing Electronics
700-mW, mono, analog input Class-AB audio amplifier
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 0.753 |
| 100 — 249 | 0.58 |
| 250 — 999 | 0.427 |
| 1,000 + | 0.21 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | Audio Amplifiers |
| RoHS | Y |
| Series | TPA321 |
| Product | Audio Amplifiers |
| Class | Class-AB |
| Output Power | 350 mW |
| Mounting Style | SMD/SMT |
| Type | 1-Channel Mono |
| Package / Case | SOIC-8 |
| Audio - Load Impedance | 8 Ohms |
| THD plus Noise | 1.3 % |
| Supply Voltage - Max | 5.5 V |
| Supply Voltage - Min | 2.5 V |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Packaging | Reel |
| Description/Function | Speaker |
| Height | 1.58 mm |
| Input Type | Differential |
| Length | 4.9 mm |
| Output Type | 1-Channel Mono |
| Supply Type | Single |
| Width | 3.91 mm |
| Brand | Texas Instruments |
| Number of Channels | 1 Channel |
| Supply Current - Max | 1.5 mA |
| Development Kit | TPA321EVM |
| GBP - Gain Bandwidth Product | 1.4 MHz |
| Operating Supply Current | 700 uA |
| Operating Supply Voltage | 2.5 V to 5.5 V |
| Output Signal Type | Differential |
| Pd - Power Dissipation | 725 mW |
| Product Type | Audio Amplifiers |
| PSRR - Power Supply Rejection Ratio | 85 dB |
| Factory Pack Quantity | 2500 |
| Subcategory | Audio ICs |
| Unit Weight | 0.002677 oz |
For more information, please refer to datasheet
Documents
| TPA321DR Datasheet |
More Information
The TPA321 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA321 can deliver 250-mW of continuous power into a BTL 8- load at less than 1% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as cellular communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. This device features a shutdown mode for power-sensitive applications with a quiescent current of 0.15 µA during shutdown. The TPA321 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD MSOP, which reduces board space by 50% and height by 40%.
