High-Performance 56W Audio Power Amplifier
LM3875
www.ti.com
SNAS083D – JUNE 1999 – REVISED APRIL 2013
LM3875 Overture™ Audio Power Amplifier Series High-Perfor...
Description
LM3875
www.ti.com
SNAS083D – JUNE 1999 – REVISED APRIL 2013
LM3875 Overture™ Audio Power Amplifier Series High-Performance 56W Audio Power Amplifier
Check for Samples: LM3875
FEATURES
1
23 56W Continuous Average Output Power Into 8Ω
100W Instantaneous Peak Output Power Capability
Signal-to-Noise Ratio >95dB (min) 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 Supply Under-Voltage Protection, Not Allowing Internal Biasing to Occur When |V+| + |V−| ≤ 12V, Thus Eliminating Turn-On and Turn-Off Transients 11 Lead PFM Package Wide Supply Voltage Range: |V+| + |V−| = 20V to 84V
APPLICATIONS
Component or Compact Stereos Self-Powered Speakers Surround-Sound Amplifiers High-End Stereo TVs
DESCRIPTION
The LM3875 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 20Hz to 20kHz.
The performance of the LM3875, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe) 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, caused by shorts to the supplies, thermal runaway, and instantaneous temperature peaks.
The LM3875 maintains an...
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