LM4862M Integrated Circuits (ICs)

Series:	Boomer®
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Class AB
Output Type:	1-Channel (Mono)
Max Output Power x Channels @ Load:	825mW x 1 @ 8 Ohm
Voltage - Supply:	2.7 V ~ 5.5 V
Features:	Shutdown, Thermal Protection
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Base Part Number:	LM4862

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LM4862M Application Field and Working Principle

The LM4862M is a dual audio amplifier that is typically used in professional audio equipment. It is able to drive loads up to 27V and provide up to 2A of current. The LM4862M is capable of driving both low and high impedance speakers with ease and has a wide supply voltage range. This makes it well suited for both commercial and residential audio applications.The LM4862M is designed to operate from a single power supply and provides high output power with low distortion. It is capable of delivering up to 2.5W per channel into an 8Ω load with a supply voltage of 4.5V and up to 4W per channel into a 4Ω load with an 8.5V supply voltage. The LM4862M also features a low harmonic distortion of 0.09%, ensuring excellent sound quality.The LM4862M features two Independent voltage gain controls, allowing the output voltage to be adjusted to suit the sound system and connected speakers. The device also features a soft clip circuit that limits the output power at high input levels, protecting the connected speakers and preventing unwanted distortion.The LM4862M’s working principle is based on class AB amplifier technology. The two transistors are configured as a push-pull pair to amplify the input signal. The two transistors switch on and off alternately, in a process known as “push and pull”, creating an amplified output signal.The output signal from the transistors is regulated by the voltage gain controls and then sent to the output pins. The output signal is also protected by the soft clip circuit, preventing unwanted distortion and protecting the speakers from being overloaded.Overall, the LM4862M is an excellent choice for audio applications. It provides high output power with low distortion and has a wide range of adjustable voltage settings. The soft clip circuit and class AB amplifier technology ensure that the signal is protected from unwanted distortion and the connected speakers from being overloaded.

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