LM4781

LM4781 Description

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LM4781 Datasheet (PDF)

LM4781 Price & Availability

LM4781 Features

• SPiKe Protection
• Low external component count
• Quiet fade-in/out mute mode
• Wide supply range: 20V - 70V
• Signal-to-Noise Ratio >= 93dB (ref. to P_O = 1W)

LM4781 Description

The LM4781 is a three channel audio amplifier capable of typically delivering 35W per channel of continuous average output power into an 8 load with less than 0.5% THD+N from 20Hz - 20kHz.

The LM4781 is fully protected utilizing National's Self Peak Instantaneous Temperature (°Ke) (SPiKe^TM) protection circuitry. SPiKe provides a dynamically optimized Safe Operating Area (SOA). SPiKe protection completely safeguards the LM4781's outputs against over-voltage, under-voltage, overloads, shorts to the supplies or GND, thermal runaway and instantaneous temperature peaks. The advanced protection features of the LM4781 places it in a class above discrete and hybrid amplifiers.

Each amplifier of the LM4781 has an independent smooth transition fade-in/out mute.

The LM4781 can easily be configured for bridge or parallel operation for higher power and bi-amp solutions.

LM4781 Parameters

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