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LM1877 -
Dual Audio Power Amplifier
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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 |
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Typical Application
*click for larger image
| Parameters | Values |
| 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 |
Typical Performance
*click for larger image
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Additional Resources
Design Tools

Connection Diagram
click for larger image
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Datasheet
Package Availability, Models, Samples & Pricing
| Obsolete Part | Alternate Part or
Supplier | Source | Last Time Buy Date |
LM1877N
| NONE
| NONE
| 08 Sep 1998
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LM1877N-9
| LM1877MX-9
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
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LM1877N-9A
| NONE
| NONE
| 03 Jun 2003
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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) |
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LM1877M-9 | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
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LM1877MX-9 | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
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LM1877N-9 | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
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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 |
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| Amplifiers Selection Guide software for Windows |
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View |
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[Information as of 7-Nov-2009]
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