Features 56W continuous average output power into 8 100W 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 TO-220 package Wide supply range 20V - 94V Description The LM3876 is a high-performance audio power amplifier capable of delivering 56W of continuous average power to an 8 load with 0.1% THD+N from 20Hz-20kHz. The performance of the LM3876, 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 LM3876 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%. Applications Component stereo Compact stereo Self-powered speakers Surround-sound amplifiers High-end stereo TVs

Typical Application click for larger image	Connection Diagram click for larger image
Typical Performance *click for larger image

Datasheets

Title		Size	Date	Other Language
	LM3876 High-Performance 56W Audio Power Amplifier with Mute	1045 Kbytes	4-Nov-04	日本語

Application Notes

Title		Size	Date	Other Language
	AN-898: Application Note 898 Audio Amplifiers Utilizing: SPiKe Protection	1412 Kbytes	20-Sep-02	日本語

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM3876T/NOPB LM3876T RoHS Status	TO-220	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 20 AVNET-EM Worldwide 116 DIGI-KEY Worldwide 152 FARNELL Europe and Asia 249 MOUSER Worldwide 109 RS COMPONENTS Worldwide 28 TAYLOR Americas 20	$3.19 each at 1K+ pcs	rail of 20
LM3876TF/NOPB LM3876TF RoHS Status	ISOLATED TO220	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 32 DIGI-KEY Worldwide 488 FARNELL Europe and Asia 131 MOUSER Worldwide 85 NEWARK Americas 24 RS COMPONENTS Worldwide 45	$3.19 each at 1K+ pcs	rail of 20

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM3876.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM3876 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM3876T/NOPB LM3876T	5244.76 5249.711	TO-220	11	1 1	NA NA	Detail	N/A	N/A	NSUZXYTTE# LM3876T
LM3876TF/NOPB LM3876TF	5995.061 6000.012	ISOLATED TO220	11	1 1	NA NA	Detail	N/A	N/A	NSUZXYTTE# LM3876TF

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM3876.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM3876 is located at RoHS Status.

CAD Symbols and Models N/A

Models N/A