Features: • High gain of 51dB typ. and high power output of 12W typ.• Possible to delete output and bootstrap capacitors, this encourages cost and space reductions due to external artsreduction.• Reduced external components (8 pieces recommended, 6 pieces minimum).• Almost ...
LA4460N: Features: • High gain of 51dB typ. and high power output of 12W typ.• Possible to delete output and bootstrap capacitors, this encourages cost and space reductions due to external artsre...
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• High gain of 51dB typ. and high power output of 12W typ.
• Possible to delete output and bootstrap capacitors, this encourages cost and space reductions due to external arts
reduction.
• Reduced external components (8 pieces recommended, 6 pieces minimum).
• Almost no pop noises heard during power on or off operation.
• Soft tonal quality in saturated power output.
• Low distortion over low to high ranges of the audio frequencies.
• Low residual noises (Rg=0).
• Good operation conditions because of SIP (single ended pins) package having been employed for the LA4460N.
• All pin terminal layouts of the LA4461N are reversed for easy stereo PC board pattern arrengement.
• Two ground terminals for pre-amplifier and power amplifier are provided for easy PC board pattern arrangement
and for stabilizing distortion chracteristics depending on signal source impedance.
• Voltage gain is fixed at 51dB, however, lowering the gain is possible by adding a resistor.
• IC is not damaged, if it is connected reversely.
• Audio muting functions (AC mute & DC mute) are equipped.
• Several protection circuits are installed, including :
a. Thermal protection circuit.
b. Overvoltage & surge voltage protection circuit.
c. Load short-circuit current limiting protection circuit.
d. Output pins DC short-circuit protection circuit. (grounding protection between OUT & GND, and speaker protection provided.)
Parameter |
Symbol |
Conditions |
Ratings |
Unit |
Maximum supply voltage |
VCC max1 |
Quiescent (30s) |
25 |
V |
VCC max2 |
with signal |
18 |
V | |
Supply current |
I10peak |
Instantaneous value duty5%, pulse width1ms flow-in only |
4.5 |
A |
Output current |
I7, I9 peak |
Instantaneous value duty5%, pulse width1ms |
4.5 |
A |
Surge supply voltage |
Vsurge |
t0.2s |
50 |
V |
Allowable power dissipation |
Pd max |
Tc=75°C, See Pd max Ta graph. |
25 |
W |
Package thermal resistance |
j-c |
3 |
°C/W | |
Operating temperature |
Topr |
20 to +75 |
°C | |
Storage temperature |
Tstg |
40 to +150 |
°C |