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TDA8588BJ Datasheet(PDF) 13 Page - NXP Semiconductors

Part No. TDA8588BJ
Description  I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 13 page
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2004 Feb 24
13
Philips Semiconductors
Product specification
I2C-bus controlled 4
× 50 Watt power
amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
Protection
All regulator and switch outputs are fully protected by
foldback current limiting against load dumps and
short-circuits; see Fig.6. During a load dump all regulator
outputs, except the output of regulator 2, will go low.
The power switches can withstand ‘loss-of-ground’. This
means that if pin GND becomes disconnected, the switch
is protected by automatically connecting its outputs to
ground.
Temperature protection
If the junction temperature of a regulator becomes too
high, the amplifier(s) are switched off to prevent unwanted
noise signals being audible. A regulator junction
temperature that is too high is indicated by pin DIAG going
LOW and is also indicated by setting bit D6 in data byte 2.
If the junction temperature of the regulator continues to
rise and reaches the maximum temperature protection
level, all regulators and switches will be disabled except
regulator 2.
handbook, full pagewidth
VO(REGn)
Isc
Ilimit
IO(REGn)
MDB513
Fig.6 Foldback current protection.




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