Features SPiKe Protection Minimal amount of external components necessary Quiet fade-in/out mute mode Non-Isolated 15-lead TO-220 package Wide Supply Range 20V - 78V Description The LM4766 is a stereo audio amplifier capable of delivering typically 40W per channel with the non-isolated "T" package and 30W per channel with the isolated "TF" package of continuous average output power into an 8 load with less than 0.1% (THD+N). The performance of the LM4766, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe™) Protection Circuitry, places 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 safeguarded at the output against overvoltage, undervoltage, overloads, including thermal runaway and instantaneous temperature peaks. Each amplifier within the LM4766 has an independent smooth transition fade-in/out mute that minimizes output pops. The IC's extremely low noise floor at 2µV and its extremely low THD+N value of 0.06% at the rated power make the LM4766 optimum for high-end stereo TVs or minicomponent systems. Key Specification THD+N at 1kHz at 2 x 30W continuous average output power into 8 0.1% (max) THD+N at 1kHz at continuous average output power of 2 x 30W into 8 0.009% (typ) Applications High-end stereo TVs Component stereo Compact stereo

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

Datasheets

Title		Size	Date	Other Language
	LM4766 Overture Audio Power Amplifier Series Dual 40-Watt Audio Power Amplifier with Mute	988 Kbytes	23-Mar-06	日本語

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM4766T/NOPB LM4766T RoHS Status	TO-220	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 700 AVNET-EM Worldwide 30 DIGI-KEY Worldwide 555 FARNELL Europe and Asia 475 MOUSER Worldwide 155 NEWARK Americas 22 RS COMPONENTS Worldwide 30 RSL MICRO Asia Pacific 1640 TAYLOR Americas 700	$2.38 each at 1K+ pcs	rail of 20
LM4766TF/NOPB LM4766TF RoHS Status	ISOLATED TO220	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 86 FARNELL Europe and Asia 498 MOUSER Worldwide 140 NEWARK Americas 254 RS COMPONENTS Worldwide 16	$2.75 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 LM4766.

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 LM4766 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
LM4766T/NOPB LM4766T	5193.55 5199.18	TO-220	15	1 1	NA NA	Detail	Download	N/A	NSUZXYTTE# LM4766T
LM4766TF/NOPB LM4766TF	6494.522 6500.022	ISOLATED TO220	15	1 1	NA NA	Detail	Download	N/A	NSUZXYTTE# LM4766TF

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 LM4766.

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 LM4766 is located at RoHS Status.

CAD Symbols and Models Download LM4766 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM4766T	HV700	0	14255	0	0	1582500	3	449038695
LM4766TF	HV700	0	14255	0	0	1582500	3	449038695

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

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 LM4766.

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 LM4766 is located at RoHS Status.