LM4780TA – Audio Power Amplifier Series Stereo 60W/ Mono 120W Audio Power Amplifier with Mute

LM4780TA Datasheet PDF learn more.

Part number : LM4780TA

Functions : This is a kind of semiconductor, Audio Power Amplifier Series Stereo 60W/ Mono 120W Audio Power Amplifier with Mute.

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Package information :

Manufacturer : National Semiconductor

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LM4780TA Datasheet PDF

The texts in the PDF file :

LM4780 Overture™ Audio Power Amplifier Series Stereo 60W, Mono 120W Audio Power Amplifier with Mute July 2003 LM4780 Overture™ Audio Power Amplifier Series Stereo 60W, Mono 120W Audio Power Amplifier with Mute General

Description

The LM4780 is a stereo audio amplifier capable of typically delivering 60W per channel of continuous average output power into an 8Ω load with less than 0.5% THD+N from 20Hz – 20kHz. The LM4780 is fully protected utilizing National’s Self Peak Instantaneous Temperature (˚Ke) (SPiKeTM) protection circuitry. SPiKe provides a dynamically optimized Safe Operating Area (SOA). SPiKe protection completely safeguards the LM4780’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 LM4780 places it in a class above discrete and hybrid amplifiers. Each amplifier of the LM4780 has an independent smooth transition fade-in/out mute. The LM4780 can easily be configured for bridge or parallel operation for 120W mono solutions. Key Specifications n Output Power/Channel with 0.5% THD+N, 1kHz into 8Ω 60W (typ) n THD+N at 2 x 30W into 8Ω (20Hz – 20kHz) 0.03% (typ) n THD+N at 2 x 30W into 6Ω (20Hz – 20kHz) 0.05% (typ) n THD+N at 2 x 30W into 4Ω (20Hz – 20kHz) 0.07% (typ) n Mute Attenuation 110dB (typ) n PSRR 85dB (min) n Slew Rate 19V/µs (typ)

Features

n n n n n SPiKe Protection Low external component count Quiet fade-in/out mute mode Wide supply range: 20V – 84V Signal-to-Noise Ratio ≥ 97dB (ref. to PO = 1W) Applications n n n n Audio Audio Audio Audio amplifier amplifier amplifier amplifier for for for for component stereo compact stereo self-powered speakers high-end and HD TVs Typical Application 20058622 FIGURE 1. Typical Audio Amplifier Application Circuit SPiKe™ Protection and Overture™ are trademarks of National Semiconductor Corporation. © 2003 National Semiconductor Corporation DS200586 [ … ]

LM4780TA PDF File



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