LM3886 IC 68W – High Power Audio Amplifier

LM3886 IC 68W – High Power Audio Amplifier

The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% THD+N from 20Hz–20kHz. The performance of the LM3886, 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, including shorts to the supplies, thermal runaway, and instantaneous temperature peaks. The LM3886 maintains an excellent signal-to-noise ratio of greater than 92dB with a typical low noise floor of 2.0µV. It exhibits extremely low THD+N values of 0.03% at the rated output into the rated load over the audio spectrum and provides excellent linearity with an IMD (SMPTE) typical rating of 0.004%

Applications:

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

Features/Specs:

• Part Number: LM3886
• Audio input type: Analog Input
• Architecture: Class-AB
• Speaker channels: Mono
• Power stage supply: 20V
• Power stage supply: 94V
• Output power: 68W
• Load (Min): 4 ohm
• SNR (dB): 110
• THD + N @ 1 kHz: 0.03%
• Iq (Typ)n(mA) 50
• Control interface: Hardware
• Closed/open loop: Open
• Analog supply: 20V
• Analog supply: 84V Max
• Power to parallel bridge tied load: 68-watt max
• PSRR (dB): 120
• Operating temperature range: 0~70°C
• 68W Cont. Avg. Output Power into 4Ω at VCC = ±28V
• 38W Cont. Avg. Output Power into 8Ω at VCC = ±28V
• 50W Cont. Avg. Output Power into 8Ω at VCC = ±35V
• 135W Instantaneous Peak Output Power Capability
• Signal-to-Noise Ratio ≥ 92dB
• 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
• Supply Under-Voltage Protection, not Allowing Internal Biasing to Occur when |VEE| + |VCC| ≤ 12V, thus
• Eliminating Turn-On and Turn-Off
• Package: TO-220-11 Lead

Package Includes:

• 1 x LM3886 IC 68W – High Power Audio Amplifier

Datasheet: LM3886

Note: Product Images are shown for illustrative purposes only and may differ from the actual product.