Texas Instruments LM4780
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 Texas Instruments' Self Peak Instantaneous Temperature (°Ke) (SPiKeTM) protection circuitry. The advanced protection features of the LM4780 places it in a class above discrete and hybrid amplifiers.| Part No. | LM4780 |
|---|---|
| Datasheet | LM4780 Download |
| Manufacturer |  Texas Instruments |
| Description | Stereo 60W / Mono 120W Audio Power Amplifier |
| Buy | Stock & Price |
FEATURES
1●23 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
● Audio Amplifier for Component Stereo● Audio Amplifier for Compact Stereo
● Audio Amplifier for Self-Powered Speakers
● Audio Amplifier for High-End and HD TVs KEY SPECIFICATIONS
● Output Power/Channel with 0.5% THD+N, 1kHz into 8Ω: 60 W (Typ)
● THD+N at 2 x 30W into 8Ω (20Hz - 20kHz): 0.03% (Typ)
● THD+N at 2 x 30W into 6Ω (20Hz - 20kHz): 0.05% (Typ)
● THD+N at 2 x 30W into 4Ω (20Hz - 20kHz): 0.07% (Typ)
● Mute Attenuation: 110 dB (Typ)
● PSRR: 85 dB (Min)
● Slew Rate: 19V/µs (Typ)
DESCRIPTION
SPiKe provides a dynamically optimized Safe Operating Area (SOA). SPiKe protection completely safeguards the LM4780's outputs against over-voltage, undervoltage, overloads, shorts to the supplies or GND, thermal runaway and instantaneous temperature peaks. Each amplifier of the LM4780 has an independent smooth transition fade-in/out mute.
