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LM4871MX
+BOMIC AMP CLASS AB MONO 3W 8SOIC
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ManufacturerTexas Instruments
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Mfr. Part #LM4871MX
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Package SOIC (D)-8
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In Stock2210
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Bulk |
| Series | Boomer® |
| ProductStatus | Active |
| Type | Class AB |
| OutputType | 1-Channel (Mono) |
| MaxOutputPowerxChannels@Load | 3W x 1 @ 3Ohm |
| Voltage-Supply | 2V ~ 5.5V |
| Features | Shutdown, Thermal Protection |
| MountingType | Surface Mount |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| SupplierDevicePackage | 8-SOIC |
Overview
Description
Key features include its low distortion, minimal external components required for operation, and the ability to provide high-quality audio output. It also has built-in features like thermal shutdown protection and short-circuit protection, enhancing its reliability and safety. The LM4871MX operates on a single supply voltage and employs a bridge-tied load (BTL) configuration, which eliminates the need for output coupling capacitors.
Packaged in a small, surface-mount form, the LM4871MX is optimal for space-constrained designs. Its efficient design helps extend battery life in portable applications, making it a popular choice for developers looking to integrate quality audio amplification in compact electronic devices.
Equivalent
1. TDA7266: A stereo audio amplifier with similar power output capabilities.
2. TDA2822M: A dual audio power amplifier suitable for portable devices.
3. MAX9710: A stereo, 3W audio power amplifier with similar features.
4. PAM8403: A 3W stereo class-D amplifier with high efficiency.
5. NJM2073: A low power audio amplifier with comparable specifications.
These equivalents may have variations in specifications, so it's crucial to check datasheets for compatibility.
Features
Pinout
1. Pin 1 (SHUTDOWN): This pin is used to put the amplifier into a low-power shutdown mode when driven high.
2. Pin 2 (Bypass): This pin is used to set the bias voltage for the amplifier's internal circuitry. A capacitor is often connected to this pin to minimize noise.
3. Pin 3 (GND): Ground connection for the amplifier.
4. Pin 4 (Audio Input): This pin is used to receive the audio signal input.
5. Pin 5 (VDD): Positive power supply pin.
6. Pin 6 (Audio Output): The output pin through which the amplified audio signal is delivered to the connected load.
7. Pin 7 (VO2): It's another output pin, used in bridge applications.
8. Pin 8 (VO1): Used in conjunction with VO2 for bridged output.
The LM4871MX is commonly used in applications where a bridge-tied load (BTL) configuration is needed to drive small speakers efficiently.
Manufacturer
Application
1. Mobile Phones and Tablets: Enhances audio output for better sound quality in small form factor devices.
2. Portable Media Players: Provides efficient audio amplification for personal music and video players.
3. Laptops and Notebooks: Used in compact speaker systems to improve audio clarity.
4. Handheld Gaming Devices: Enhances audio experience in portable gaming consoles.
5. Consumer Electronics: Suitable for use in devices like digital voice recorders and camcorders.
6. Personal Audio Systems: Ideal for docking stations and portable speaker systems.
The LM4871MX is valued for its efficiency, low distortion, and minimal external components requirement.