Features: LLP, SOP, and MSOP surface mount packaging.Switch on/off click suppression. Unity-gain stable.Minimum external components.ApplicationGeneral purpose audioPortable electronic devicesInformation Appliances (IA)PinoutSpecifications Power@ 8Ohms, 1% THD 0.25 Watt Power@ 8Ohms, 10% T...
LM4819: Features: LLP, SOP, and MSOP surface mount packaging.Switch on/off click suppression. Unity-gain stable.Minimum external components.ApplicationGeneral purpose audioPortable electronic devicesInforma...
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Power@ 8Ohms, 1% THD | 0.25 Watt |
Power@ 8Ohms, 10% THD | 0.3 Watt |
THD | 1 % |
Channels | 1 Channels |
Supply Range | +2.0 - +5.5 V |
THD Conditions | f=1kHz, Avd=2, Po = 0.27Wrms |
User Supply | 5 Volt |
Shutdown Type | High |
Temperature Min | -40 deg C |
Temperature Max | 85 deg C |
View Using Catalog |
Supply Voltage........................................................... 6.0V
Storage Temperature .........................−65°C to +150°C
Input Voltage .....................................−0.3V to VDD +0.3V
Power Dissipation (PD) (Note 4)............ Internally Limited
ESD Susceptibility (Note 5)....................................... 3.5kV
ESD Susceptibility (Note 6)........................................ 250V
Junction Temperature (TJ) ......................................150°C
Soldering Information (Note 1)
Small Outline Package
Vapor Phase (60 seconds)..................................... 215°C
Infrared (15 seconds) .............................................220°C
Thermal Resistance
qJC (MSOP)............................................................ 56°C/W
qJA (MSOP).......................................................... 210°C/W
qJC (SOP) ..............................................................35°C/W
qJA (SOP) .............................................................170°C/W
qJA (LLP) .............................................117°C/W (Note 10)
qJA (LLP) ..............................................150°C/W (Note 11)
The LM4819 is a mono bridged power amplifier that is capable of delivering 350mWRMS output power into a 16W load or 300mWRMS output power into an 8W load with 10% THD+N from a 5V power supply. The LM4819 Boomer audio power amplifier is designed specifically to provide high quality output power and minimize PCB area with surface mount packaging and a minimal amount of external components. Since the LM4819 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.
The closed loop response of the unity-gain stable LM4819 can be configured using external gain-setting resistors. The device is available in LLP, MSOP, and SO package types to suit various applications.