LM4834MSX/NOPB

Series:	Boomer®
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Class AB
Output Type:	1-Channel (Mono) with Stereo Headphones
Max Output Power x Channels @ Load:	1.1W x 1 @ 8 Ohm; 95mW x 2 @ 32 Ohm
Voltage - Supply:	4.5 V ~ 5.5 V
Features:	Depop, Microphone, Mute, Shutdown, Thermal Protection, Volume Control
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	28-SSOP
Package / Case:	28-SSOP (0.209", 5.30mm Width)
Base Part Number:	LM4834

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

<div class="category">Linear - Amplifiers - Audio</div><p>The LM4834MSX/NOPB is a cost-effective, low power audio amplifier integrated circuit (IC) specifically designed for use in handheld and portable applications. It is the ideal choice for applications that require high fidelity with low power consumption and low cost. The LM4834MSX/NOPB combines an audio power amplifier with a power management system to provide a complete audio power solution.</p><p>The LM4834MSX/NOPB is designed to provide high quality audio output from various small form factor and low cost audio applications. It has a large gain range and low distortion, making it ideal for driving speakers and headphones. It also provides adjustable bass boost and 5V bipolar power supply for superior audio performance.</p><p>The LM4834MSX/NOPB is optimized for portable audio applications such as voice activated personal assistant, mobile phones, portable media players, digital still cameras, personal digital assistants (PDAs), gaming devices, and other consumer audio applications that require power efficiency, low cost, and small footprint.</p><p>The LM4834MSX/NOPB is available in 8-pin SOP and SOIC packages, with the SOT89 package being the most common. The device supports a supply voltage range of 2.3 to 5.5 volts, with typical performance between 3.0 and 4.5 volts.</p><p><strong>Application Field</strong></p><p>This IC operates using the Class-AB audio output architecture, which combines the best wideband characteristics of both Class A and Class B amplifier circuits. This is achieved by using both transistors, with one operating in the linear region and the other in the saturation region. This results in a low distortion and low power consumption. The output of the amplifier is adjustable from 0.2 to 4.75 watts, making it suitable for most low-power portable audio applications.</p><p>The LM4834MSX/NOPB is suitable for a wide range of audio applications, including voice activated personal assistant, mobile phones, portable media players, digital still cameras, personal digital assistants (PDAs), gaming devices, and other consumer audio applications that require power efficiency, low cost, and small footprint.</p><p><strong>Working Principle</strong></p><p>The LM4834MSX/NOPB uses a proprietary power management system to provide high efficiencies. This includes a supply voltage conditioning system, a dual high-side switch, and a low-side switch. This enables low power consumption, as well as thermal and stability benefits.</p><p>The IC has a high-gain linear amplifier stage with a variable gain control. This amplifier stage runs in Class AB-Brell mode and provides excellent audio performance. It can operate over the supply voltage range with a gain of up to 50 dB, allowing it to drive high quality audio over a wide range of frequencies.</p><p>The LM4834MSX/NOPB also includes a low-dropout linear regulator that provides a stable supply rail for the audio amplifier. The low-dropout regulator also helps to reduce device power consumption, since it eliminates the need for a power transformer.</p><p>The LM4834MSX/NOPB also includes an audio capability protection circuit (ACPC) to protect the device from inadvertent overvoltage or overtemperature situations. The ACPC ensures that the audio device output power is maintained at 0.2 watts, even during overvoltage, overtemperature, and idle conditions.</p><p>The LM4834MSX/NOPB uses advanced packaging techniques to reduce parasitic inductances and capacitor leakage. This helps to improve reliability and performance, while also reducing power dissipation.</p><p>The LM4834MSX/NOPB is an ideal choice for low cost, low power audio applications. Its cost-effective design, low power consumption, and low distortion make it an attractive choice for handheld and portable sound systems.</p>

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description