LM1877 - Dual Audio Power Amplifier

Datasheet	Packaging	Samples & Pricing	Reliability	Design Tools	Knowledge Base

Features

•	2W/channel
•	-65 dB ripple rejection, output referred
•	-65 dB channel separation, output referred
•	Wide supply range, 6V-24V
•	Very low cross-over distortion
•	Low audio band noise
•	AC short circuit protected
•	Internal thermal shutdown

General Description

The LM1877 is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8

loads. More...

Applications

•	Multi-channel audio systems
•	Stereo phonographs
•	Tape recorders and players
•	AM-FM radio receivers
•	Servo amplifiers
•	Intercom systems
•	Automotive products

Typical Application

*click for larger image

Parametric Table expand

Parametric Table collapse

Channels 2 Channels

Mono/Stereo Stereo

Supply Range +6 - +24

Slew Rate 2 Volts/usec

Power@ 4Ohms, 1% THD 1.5 Watt

Power@ 8Ohms, 1% THD 1 Watt

Power@ 4Ohms, 10% THD 1.75 Watt

Power@ 8Ohms, 10% THD 1.3 Watt

Channels 2 Channels

Mono/Stereo Stereo

Supply Range +6 - +24

Slew Rate 2 Volts/usec

Power@ 4Ohms, 1% THD 1.5 Watt

Power@ 8Ohms, 1% THD 1 Watt

Power@ 4Ohms, 10% THD 1.75 Watt

Power@ 8Ohms, 10% THD 1.3 Watt

THD 0.06 %

THD Conditions Po=1W @ Vs=14V, RL=8ohms

Temperature Min 0 deg C

Temperature Max 70 deg C

View Using Catalog

Typical Performance

*click for larger image

Additional Resources

Design Tools (see below)

Connection Diagram

click for larger image

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM1877 Dual Audio Power Amplifier	290 Kbytes	14-Oct-04	Download
LM1877 Dual Audio Power Amplifier (Japanese)	167 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

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

LM1877M-9

SOIC WIDE

STD

NOPB

220

260

RoHS

N/A

Full production

N/A

1K+

$0.61

rail
of
50

NSUZXYTT
LM1877M
-9

8 weeks

2000

LM1877MX-9

SOIC WIDE

STD

NOPB

220

260

RoHS

N/A

Full production

N/A

1K+

$0.61

reel
of
1000

NSUZXYTT
LM1877M
-9

6 weeks

5000

LM1877N-9

MDIP

STD

NOPB

RoHS

N/A

Obsolete

N/A

1K+

$0.71

rail
of
25

NSUZXYYTTE#
LM1877N-9

16 weeks

5000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM1877N	NONE	NONE	08 Sep 1998
LM1877N-9	LM1877MX-9	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM1877N-9A	NONE	NONE	03 Jun 2003

General Description

The LM1877 is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8 loads. The LM1877 is designed to operate with a low number of external components, and still provide flexibility for use in stereo phonographs, tape recorders and AM-FM stereo receivers, etc. Each power amplifier is biased from a common internal regulator to provide high power supply rejection, and output Q point centering. The LM1877 is internally compensated for all gains greater than 10.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM1877M-9	SLM	0	42786	0	0	3352500	2	951281028
LM1877MX-9	SLM	0	42786	0	0	3352500	2	951281028
LM1877N-9	SLM	0	42786	0	0	3352500	2	951281028

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.

Design Tools

Title	Size in Kbytes	Date
Amplifiers Selection Guide software for Windows	8 Kbytes	6-Mar-2007	View

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 3-Jul-2009]