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2022-09-21 17:24:28
LM4880 dual 250 MW audio power amplifier closing mode
General description
lm4880 is a dual audio power amplifier, which can provide 250 MGA's continuous average per channel of 5V power supply, 0.1% at 0.1% (THD) power supply to 8Ω load. Boomer audio power amplifier is specially packed on the surface with the least external components. Because the LM4880 does not need to be a capacitor or buffer network, it is most suitable for low power consumption portable systems. The LM4880 is characterized by external control, low power consumption shutdown mode, and internal heat shutdown protection mechanism. The stable LM4880 of the unit gain can set the resistor from the external configuration gain.
Main specifications
200MW NTHD
Power converted to 8Ω: 0.1%(maximum value) 85MW continuous output of 1kHz total harmony of the total harmony of 1kHz continuous output at 1kHz. Wave distorted
Electric power 32Ω: 0.1%(typical value) output power at 10%THD+N output power when 1 kHz becomes 8Ω: 325
Muwa (typical)Trimous current: 0.7 Weian (typical value)
Features
The necessary
small contour (so) without a capacitor or buffer circuit The gain of the impregnated packaging unit is stable
External gain configuration capabilities
Headphones amplifier
Personal computer
CD-ROM playback Instrument
Absolute maximum rated value (Note 2)
Power voltage 6.0V
Input voltage -0.3V to VDD+0.3V
Power consumption (Note 3) Internal limit
Static discharge sensitivity (Note 4 ) 3500V
Static discharge sensitivity (Note 5) 250V
Jacking temperature 150 303C
Welding information
Small contour package
Qi Phase (60 seconds)
Infrared (15 seconds)
215 degrees Celsius
220 degrees Celsius
see AN-450 surface installation and its impact [123 ]
"Product reliability "
installation equipment of other welding surface methods.
Thermal resistance
θjc (inclination) 37 ° C/W[ 123] θjA (inclination) 107 ° C/W
θjc (so) 35 degrees Celsius/Wa
θja (so) 170 degrees Celsius/tile
Rate of the run
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[[[ 123] Temperature range
tmin≤TA ≤TMAX 40 degrees C≤ta ≤+85 degrees C
Power supply voltage 2.7V ≤VDD ≤ 5.5V
Electric Features (Note 1