LM1876 - Overture Audio Power Amplifier Series Dual 20-Watt Audio Power Amplifier with Mute and Standby Modes

Datasheet	Packaging	Samples & Pricing	Reliability	Knowledge Base

Features

•	SPiKe protection
•	Minimal amount of external components necessary
•	Quiet fade-in/out mute mode
•	Standby-mode
•	Isolated 15-lead TO-220 package
•	Non-Isolated 15-lead TO-220 package
•	Wide supply range 20V - 64V

Key Specification

	THD+N at 1kHz at 2 x 15W continuous average
	output power into 4 or 8:	0.1% (max)
	THD+N at 1kHz at continuous average
	output power of 2 x 20W into 8:	0.009% (typ)
	Standby current:	4.2mA (typ)

General Description

The LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4

or 8

load with less than 0.1% THD+N.

Each amplifier has an independent smooth transition fade-in/out mute and a power conserving standby mode which can be controlled by external logic.

Applications

•	High-end stereo TVs
•	Component stereo
•	Compact stereo

Typical Application

click for larger image

Parameters Values

Power@ 4Ohms, 1% THD 23 Watt

Power@ 8Ohms, 1% THD 20 Watt

Power@ 4Ohms, 10% THD 29 Watt

Power@ 8Ohms, 10% THD 26 Watt

THD 0.08 %

Channels 2 Channels

THD Conditions Po=15W @ Vs=20V

PSRR Conditions Undefined

SNR Conditions Undefined

User Supply 22 Volt

Supply Range +20 - +54V

Mute/Shutdown Mute and standby

Mono/Stereo Stereo

Gain Bandwidth 7.5 MHz

Slew Rate 18 Volts/usec

Temperature Min -20 deg C

Temperature Max 85 deg C

Typical Performance

*click for larger image

Connection Diagram

click for larger image

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM1876 Overture Audio Power Amplifier Series Dual 20W Audio Power Amplifier with Mute and Standby Modes	702 Kbytes	25-Jul-03	Download
LM1876 Overture Audio Power Amplifier Series Dual 20W Audio Power Amplifier with Mute and Standby Modes (Japanese)	788 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LM1876T

TO-220

NOPB
STD

1
1

NA
NA

RoHS

N/A

Full production

N/A

1K+

$3.15

rail
of
20

NSUZXYTTE#
LM1876T

12 weeks

5000

LM1876TF

ISOLATED TO220

NOPB
STD

1
1

NA
NA

RoHS

N/A

Full production

N/A

1K+

$3.39

rail
of
20

NSUZXYTTE#
LM1876TF

12 weeks

2000

General Description

The LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4 or 8 load with less than 0.1% THD+N.

Each amplifier has an independent smooth transition fade-in/out mute and a power conserving standby mode which can be controlled by external logic.

The performance of the LM1876, 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.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM1876T	HV700	0	13850	0	0	1492500	3	423500950
LM1876TF	HV700	0	13850	0	0	1492500	3	423500950

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.

[Information as of 7-Nov-2009]