LM3886

ACTIVO

Amplificador estéreo de Clase AB de 68 W, monocanal, 20-94 V con silencio

Detalles del producto

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 68 Power stage supply (max) (V) 94 Power stage supply (min) (V) 20 THD + N at 1 kHz (%) 0.03 Load (min) (Ω) 4 Analog supply voltage (min) (V) 20 Analog supply voltage (max) (V) 84 Rating Catalog Operating temperature range (°C) 0 to 70
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 68 Power stage supply (max) (V) 94 Power stage supply (min) (V) 20 THD + N at 1 kHz (%) 0.03 Load (min) (Ω) 4 Analog supply voltage (min) (V) 20 Analog supply voltage (max) (V) 84 Rating Catalog Operating temperature range (°C) 0 to 70
TO-220 (NDJ) 11 468.2678 mm² (20.02 mm × 23.39 mm) TO-220 (NDA) 11 195.4953 mm² (20.02 mm × 9.765 mm)
  • 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 Transients
  • 11-Lead TO-220 Package
  • Wide Supply Range 20V - 94V

All trademarks are the property of their respective owners.

  • 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 Transients
  • 11-Lead TO-220 Package
  • Wide Supply Range 20V - 94V

All trademarks are the property of their respective owners.

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%.

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%.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM3886 Overture Audio Pwr Amp Series High-Perf 68W Audio Pwr Amp w/Mute datasheet (Rev. C) 21/03/2013
Nota sobre la aplicación Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26/08/2019
Nota sobre la aplicación AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27/06/2019
Nota sobre la aplicación AN-1192 Overture Series High Power Solutions (Rev. B) 1/05/2013
Nota sobre la aplicación AN-898 Audio Amplifiers Utilizing: SPiKe Protection (Rev. B) 1/05/2013

Diseño y desarrollo

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Modelo de simulación

LM3886 PSpice Model (Rev. B)

SNAM041B.ZIP (52 KB) - Modelo PSpice
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Modelo de simulación

LM3886 TINA-TI Reference Design (Rev. B)

SNAM040B.TSC (283 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

LM3886 TINA-TI Spice Model (Rev. B)

SNAM039B.ZIP (7 KB) - Modelo TINA-TI Spice
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