Overview
The LM4871M/NOPB, manufactured by Texas Instruments, is a single-channel audio power amplifier designed for low-power audio applications. This Class-AB amplifier is housed in an SOIC-8 package and is well-suited for portable devices, consumer electronics, and other applications requiring efficient audio amplification. With a maximum output power of 3W and a wide operating voltage range of 2V to 5.5V, the LM4871M/NOPB offers a compact and reliable solution for audio amplification needs. Its advanced features, including thermal overload protection and short-circuit protection, make it a competitive choice in the audio amplifier market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Category | Audio Amplifier | - | - |
| Package | SOIC-8 | - | - |
| Output Power | 3 | W | - |
| Channels | 1 | - | Mono |
| Operating Voltage | 2 - 5.5 | V | - |
| Quiescent Current | 6.5 | mA | - |
| Bandwidth | 20 | kHz | - |
| Gain | 250 | mdB | - |
| Operating Temperature | -40 to 85 | °C | - |
| Dimensions | 4.9 x 3.9 x 1.45 | mm | Length x Width x Height |
Key Features
- Single-channel Class-AB audio amplifier with 3W output power.
- Wide operating voltage range (2V to 5.5V) for versatile applications.
- Thermal overload and short-circuit protection for enhanced reliability.
- Low quiescent current (6.5 mA) for energy efficiency.
- Compact SOIC-8 package suitable for space-constrained designs.
Applications
The LM4871M/NOPB is ideal for a variety of low-power audio applications, including portable devices, consumer electronics, and multimedia systems. Its compact size and efficient performance make it suitable for use in smartphones, tablets, portable speakers, and other battery-powered devices. Additionally, its robust protection features ensure reliable operation in industrial and automotive audio systems.
Q & A
1. What is the maximum output power of the LM4871M/NOPB?
The maximum output power is 3W.
2. What is the operating voltage range of this amplifier?
The operating voltage range is 2V to 5.5V.
3. What type of package does the LM4871M/NOPB use?
It uses an SOIC-8 package.
4. Does the LM4871M/NOPB include protection features?
Yes, it includes thermal overload and short-circuit protection.
5. What is the quiescent current of the LM4871M/NOPB?
The quiescent current is 6.5 mA.
6. What is the bandwidth of this amplifier?
The bandwidth is 20 kHz.
7. Can the LM4871M/NOPB be used in portable devices?
Yes, it is well-suited for portable devices due to its low power consumption and compact size.
8. What is the gain of the LM4871M/NOPB?
The gain is 250 mdB.
9. What is the operating temperature range?
The operating temperature range is -40°C to 85°C.
10. Is the LM4871M/NOPB suitable for automotive applications?
Yes, its robust protection features make it suitable for automotive audio systems.
