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LM4878

Features: ·Internal pulldown resistor on shutdown.·micro SMD package (see App. note AN-1112)·5V - 2V operation·No output coupling capacitors or bootstrap capacitors.·Unity-gain stable·External gain configuration capabilityApplication·Cellular Phones·Portable Computers·Low Voltage Audio SystemsSpec...

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SeekIC No. : 004395837 Detail

LM4878: Features: ·Internal pulldown resistor on shutdown.·micro SMD package (see App. note AN-1112)·5V - 2V operation·No output coupling capacitors or bootstrap capacitors.·Unity-gain stable·External gain ...

LM4878 Data Sheet

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Part Number:
LM4878
Supply Ability:
5000

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  • 1~5000
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  • Processing time
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Total Cost: $ 0.00

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Product Details

Description



Features:

·Internal pulldown resistor on shutdown.
·micro SMD package (see App. note AN-1112)
·5V - 2V operation
·No output coupling capacitors or bootstrap capacitors.
·Unity-gain stable
·External gain configuration capability




Application

·Cellular Phones
·Portable Computers
·Low Voltage Audio Systems




Specifications

Power@ 4Ohms, 1% THD 0.55 Watt
Power@ 8Ohms, 1% THD 0.32 Watt
Power@ 4Ohms, 10% THD 0.75 Watt
Power@ 8Ohms, 10% THD 0.43 Watt
THD 0.1 %
PSRR 65 dB
SNR 98 dB
Channels 1 Channels
Supply Range +2.0 - +5.5 V
THD Conditions Po=.25 W @Vs=5V, R=8ohms, 20Hz-20kHz
User Supply 2.6 Volt
Shutdown Type Low
Temperature Min -40 deg C
Temperature Max 85 deg C
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Supply Voltage ...........................................6.0V
Storage Temperature ..........−65°C to +150°C
Input Voltage ......................−0.3V to VDD +0.3V
Power Dissipation (Note 3) .....Internally Limited
ESD Susceptibility (Note 4)....................... 2500V
ESD Susceptibility (Note 5) .........................250V
Junction Temperature.............................. 150°C




Description

The LM4878 is a bridge-connected audio power amplifier capable of delivering 1 W of continuous average power to an 8 load with less than .2% (THD) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4878 does not require output coupling capacitors or bootstrap capacitors. It is optimally suited for low-power portable applications.

The LM4878 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4878 can be configured by external gain-setting resistors.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4878ITP CS065 2 34108 59 0 3862000 1 1095853045
LM4878ITPX CS065 2 34108 59 0 3862000 1 1095853045

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.







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