LM4818MX

Images are for reference only

LM4818MX

+BOM

AUDIO AMPLIFIER, 0.35W, 1 CHANNE

365 Days Quality Guarantee

7*24 hours service quarantee

90-day after-sales guarantee

Genuine Product Guarantee

Specifications

Attribute Value
Package Bulk
ProductStatus Active

Overview

Description

The LM4818MX is a stereo audio power amplifier designed for portable electronic devices. It offers high-quality audio performance with low distortion and efficient power usage, making it ideal for battery-powered applications. The amplifier operates on a wide supply voltage range and is capable of delivering up to 105mW of output power per channel into a 16-ohm load, which is suitable for driving small speakers or headphones.
A key feature of the LM4818MX is its bridge-tied load (BTL) configuration, which minimizes external components and improves output power without needing a larger power supply. The device also includes features like thermal shutdown protection and click-and-pop suppression, enhancing reliability and user experience. The LM4818MX is typically packaged in a small, surface-mount form factor (such as the MSOP package), which is convenient for compact device designs. Overall, the LM4818MX is a versatile and efficient solution for enhancing audio output in various consumer electronics.

Equivalent

The LM4818MX is a dual audio power amplifier. Equivalent products include the TDA2822, NJM2073, and LM386. These chips serve similar purposes in audio amplification applications, supporting portable and battery-powered devices. When selecting an equivalent, ensure it meets the specific requirements of your application, such as power output, supply voltage, and package type. Always refer to the datasheet for detailed specifications and compatibility.

Features

The LM4818MX is a dual audio power amplifier designed for portable devices. It delivers 105mW per channel into a 16-ohm load with a 3V power supply, making it suitable for low-power applications. The amplifier features an integrated shutdown circuit to conserve power, reducing quiescent current consumption to virtually zero when inactive. Its low distortion levels and wide frequency response ensure clear audio performance.
The LM4818MX operates over a wide voltage range from 2.7V to 5.5V, providing flexibility for various power supply designs. It includes thermal shutdown protection to prevent overheating and short-circuit protection to enhance reliability. The package design is optimized for minimal external components, which helps in reducing board space and cost.
The device is housed in a surface-mount MSOP-8 package, which provides a compact footprint suitable for space-constrained applications. Overall, the LM4818MX is ideal for battery-powered audio solutions, offering efficient audio amplification with minimal power consumption.

Pinout

The LM4818MX is a stereo audio power amplifier specifically designed for portable communication device applications. It typically comes in a small outline package, such as the SOP (Small Outline Package), likely with 16 pins.
Key functions of the LM4818MX include:
1. Stereo Amplification: It provides stereo audio output suitable for driving headphones or small speakers.
2. Low Distortion: Ensures high-quality audio output with minimal distortion and noise.
3. Shutdown Mode: Includes a feature to reduce power consumption by shutting down the amplifier when not in use.
4. Thermal Protection: Integrated thermal shutdown protection to prevent damage from overheating.
5. Pop and Click Suppression: Minimizes audible pop and click sounds during power up and shutdown.
For exact pin count and detailed pin functions, refer to the manufacturer's datasheet, as configurations might slightly vary with different package versions.

Manufacturer

The LM4818MX is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components, including integrated circuits and analog chips. TI is known for its innovations in the field of electronics, providing solutions that power a variety of industries such as automotive, industrial, consumer electronics, and communication equipment. The company focuses on developing technologies that enhance performance and efficiency, catering to both commercial and industrial applications.

Application

The LM4818MX is a dual audio power amplifier designed for applications requiring high-quality audio output. It is commonly used in portable electronic devices such as smartphones, tablets, and laptops. Its key features include low power consumption, high signal-to-noise ratio, and the ability to drive small speakers and headphones efficiently. Additionally, it is suitable for use in docking stations, portable gaming devices, and other personal audio systems where compact size and efficient power management are crucial.

Package

The LM4818MX is an audio power amplifier chip from Texas Instruments. It is typically housed in an 8-pin SOIC (Small Outline Integrated Circuit) package, designed for surface-mount technology. This packaging is compact and suitable for applications where space is a constraint, such as in portable and battery-powered audio devices.