Description
LM4991MA/NOPB Texas Instruments - Yeehing Electronics
3.0-W, mono, analog input Class-AB audio amplifier
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 1.29 |
| 100 — 249 | 1.066 |
| 250 — 999 | 0.766 |
| 1,000 + | 0.40 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | Audio Amplifiers |
| RoHS | Y |
| Series | LM4991 |
| Product | Audio Amplifiers |
| Class | Class-AB |
| Output Power | 3 W |
| Mounting Style | SMD/SMT |
| Type | Mono |
| Package / Case | SOIC-8 |
| Audio - Load Impedance | 3 Ohms |
| THD plus Noise | 0.2 % |
| Supply Voltage - Max | 5.5 V |
| Supply Voltage - Min | 2.2 V |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Packaging | Tube |
| Supply Type | Single |
| Brand | Texas Instruments |
| Number of Channels | 1 Channel |
| Operating Supply Current | 4 mA |
| Operating Supply Voltage | 2.2 V to 5.5 V |
| Product Type | Audio Amplifiers |
| PSRR - Power Supply Rejection Ratio | 64 dB |
| Factory Pack Quantity | 95 |
| Subcategory | Audio ICs |
| Unit Weight | 0.002677 oz |
For more information, please refer to datasheet
Documents
| LM4991MA/NOPB Datasheet |
More Information
The LM4991 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V power supply (see Note below). To conserve power in portable applications, the LM4991's micropower shutdown mode (ISD = 0.1µA, typ) is activated when VDD is applied to the SHUTDOWN pin.
