LM3876 56W High-Performance Audio Amplifier – Datasheet

The LM3876 is a high-performance audio power amplifier capable of delivering 56W of continuous average power to an 8Ω load with 0.1% (THD + N) from 20 Hz–20 kHz. The performance of the LM3876, utilizing its Self Peak Instantaneous Temperature Protection Circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe Protection means that these parts are completely safeguarded at the output against overvoltage, Undervoltage, overloads, including shorts to the supplies, thermal runaway, and instantaneous temperature peaks

LM3876T Pinout

LM3876T Pin Configuration

Pin No	Pin Name	Description
1	V+	Positive Supply Voltage
2	NC	No Connection
3	OUTPUT	Output Pin
4	V-	Negative Supply Voltage
5	NC	No Connection
6	NC	No Connection
7	GND	Ground Pin
8	MUTE	Mute Pin
9	Vin-	Negative Input Voltage
10	Vin+	Positive Input Voltage
11	NC	No Connection

LM3876T Key Features

• 56W continuous average output power into 8Ω
• 100W instantaneous peak output power capability
• Signal-to-Noise Ratio ≥ 95 dB(min)
• An input mute function
• Output protection from a short to ground or to the
• supplies via internal current limiting circuitry
• Output over-voltage protection against transients from inductive loads

Application

• Component stereo
• Compact stereo
• Self-powered speakers
• Surround-sound amplifiers
• High-end stereo TVs

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