Produktdetails

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 60 Power stage supply (min) (V) 20 Load (min) (Ω) 4 Output power (W) 40 THD + N at 1 kHz (%) 0.06 Iq (typ) (mA) 24 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 20 Analog supply voltage (max) (V) 60 PSRR (dB) 125 Operating temperature range (°C) -20 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 60 Power stage supply (min) (V) 20 Load (min) (Ω) 4 Output power (W) 40 THD + N at 1 kHz (%) 0.06 Iq (typ) (mA) 24 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 20 Analog supply voltage (max) (V) 60 PSRR (dB) 125 Operating temperature range (°C) -20 to 85
TO-220 (NDA) 11 195.4953 mm² 20.02 x 9.765
  • 40W Continuous Average Output Power Into 8Ω
  • 75W Instantaneous Peak Output Power Capability
  • Signal-to-Noise Ratio ≥ 95 dB(min)
  • 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 PFM Package
  • Wide Supply Range 20V - 72V

All trademarks are the property of their respective owners.

  • 40W Continuous Average Output Power Into 8Ω
  • 75W Instantaneous Peak Output Power Capability
  • Signal-to-Noise Ratio ≥ 95 dB(min)
  • 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 PFM Package
  • Wide Supply Range 20V - 72V

All trademarks are the property of their respective owners.

The LM2876 is a high-performance audio power amplifier capable of delivering 40W of continuous average power to an 8Ω load with 0.1% THD+N from 20Hz–20kHz.

The performance of the LM2876, 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 LM2876 maintains an excellent signal-to-noise ratio of greater than 95dB (min) with a typical low noise floor of 2.0μV. It exhibits extremely low THD+N values of 0.06% 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 LM2876 is a high-performance audio power amplifier capable of delivering 40W of continuous average power to an 8Ω load with 0.1% THD+N from 20Hz–20kHz.

The performance of the LM2876, 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 LM2876 maintains an excellent signal-to-noise ratio of greater than 95dB (min) with a typical low noise floor of 2.0μV. It exhibits extremely low THD+N values of 0.06% 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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Klasse D-Audioverstärker der nächsten Generation mit 50 W Stereo und Analogeingang:  TTPA3116D2

Technische Dokumentation

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Typ Titel Datum
* Data sheet LM2876 Overture Audio Pwr Amp Series High-Perf 40W Audio Pwr Amplifier w/Mute datasheet (Rev. C) 20 Mär 2013
Application note AN-1192 Overture Series High Power Solutions (Rev. B) 01 Mai 2013
Application note AN-898 Audio Amplifiers Utilizing: SPiKe Protection (Rev. B) 01 Mai 2013
More literature Die D/S LM2876 MDC High-Performance 40 Watt Audio Power Amplifier W/Mute 20 Sep 2012
Application note Voltage Spike Measurement Technique and Specification (Rev. A) 13 Nov 2003

Design und Entwicklung

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Simulationsmodell

LM2876 TINA-TI Reference Design

SNAM088.TSC (101 KB) - TINA-TI Reference Design
Simulationsmodell

LM2876 TINA-TI Spice Model

SNAM087.ZIP (21 KB) - TINA-TI Spice Model
Simulationsmodell

LM2876 Unencrypted PSpice Model Package (Rev. A)

SNAM085A.ZIP (21 KB) - PSpice Model
Simulationstool

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
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