IC AMP AUDIO 150W AB 27FLEXIWATT

TDA7575

Manufacturer Part NumberTDA7575
DescriptionIC AMP AUDIO 150W AB 27FLEXIWATT
ManufacturerSTMicroelectronics
TypeClass AB
TDA7575 datasheets
 


Specifications of TDA7575

Output Type1-Channel (Mono) or 2-Channel (Stereo)Max Output Power X Channels @ Load150W x 1 @ 1 Ohm; 75W x 2 @ 2 Ohm
Voltage - Supply8 V ~ 18 VFeaturesDifferential Inputs, I²C, Mute, Short-Circuit and Thermal Protection, Standby
Mounting TypeThrough HolePackage / Case27-Flexiwatt (bent and staggered leads)
Operational ClassClass-ABOutput Power (typ)150x1@1Ohm/75x2@2OhmW
Audio Amplifier FunctionSpeakerTotal Harmonic Distortion0.02@1Ohm@30W%
Single Supply Voltage (typ)9/12/15VDual Supply Voltage (typ)Not RequiredV
Power Supply RequirementSinglePower Dissipation86W
Rail/rail I/o TypeNoSingle Supply Voltage (min)8V
Single Supply Voltage (max)18VDual Supply Voltage (min)Not RequiredV
Dual Supply Voltage (max)Not RequiredVOperating Temp Range-55C to 150C
Operating Temperature ClassificationMilitaryMountingSurface Mount
Pin Count36Package TypePSOP
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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DOCUMENT CD00003142
REVISION 3.0
TDA7575PD
relevant data are stored inside the device and can be read by the microprocessor. When one cycle
has terminated, the next one is activated by an I
throughout the car-radio operating time.
– To check the status of the device a sampling system is needed. The timing is chosen at microproces-
sor level (over than half a second is recommended).
Fig. G: Restart timing without Diagnostic Enable (Permanent)
Each 1mS time, a sampling of the fault is done
1-2mS
Overcurrent and short
circuit protection intervention
(i.e. short circuit to GND)
Fig H: Restart timing with Diagnostic Enable (Permanent)
Overcurrent and short
circuit protection intervention
(i.e. short circuit to GND)
OUTPUT DC OFFSET DETECTION.
Any DC output offset exceeding +/- 2 V are signalled out. This inconvenient might occur as a consequence of
initially defective or aged and worn-out input capacitors feeding a DC component to the inputs, so putting the
speakers at risk of overheating.
This diagnostic has to be performed with low-level output AC signal (or Vin = 0).
The test is run with selectable time duration by microprocessor (from a "start" to a "stop" command):
– START = Last reading operation or setting IB1 - D5 - (OFFSET enable) to 1
– STOP = Actual reading operation
Excess offset is signalled out if persistent throughout the assigned testing time. This feature is disabled if any
overloads leading to activation of the short-circuit protection occurs in the process.
14/17
Copyright STMicroelectronics
ACTIVE
2
C reading. This is to ensure continuous diagnostics
1mS
1mS
1mS
1mS
1mS
100mS
COMPANY INTERNAL
DATE 22-Mar-2004
Out
t
Short circuit removed
1mS
1mS
t
Short circuit removed
Unauthorized reproduction and communication strictly prohibited
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