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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Examples of bytes sequence
1 - Turn-On diagnostic - Write operation
Start
Address byte with D0 = 0
2 - Turn-On diagnostic - Read operation
Start
Address byte with D0 = 1
The delay from 1 to 2 can be selected by software, starting from T.B.D. ms
3a - Turn-On of the power amplifier with mute on, diagnostic defeat.
Start
Address byte with D0 = 0
3b - Turn-Off of the power amplifier
Start
Address byte with D0 = 0
4 - Offset detection procedure enable
Start
Address byte with D0 = 0
5 - Offset detection procedure stop and reading operation (the results are valid only for the offset detection bits
(D2 of the bytes DB1, DB2, DB3, DB4).
Start
Address byte with D0 = 1
The purpose of this test is to check if a D.C. offset (2V typ.) is present on the outputs, produced by input
capacitor with anomalous leackage current or humidity between pins.
The delay from 4 to 5 can be selected by software, starting from T.B.D. ms
DIAGNOSTICS FUNCTIONAL DESCRIPTION:
a) TURN-ON DIAGNOSTIC.
It is activated at the turn-on (stand-by out) under I
– SHORT TO GND
– SHORT TO Vs
– SHORT ACROSS THE SPEAKER
– OPEN SPEAKER
To verify if any of the above misconnections are in place, a subsonic (inaudible) current pulse (fig. A) is internally
generated, sent through the speaker(s) and sunk back.The Turn On diagnostic status is internally stored until a
successive diagnostic pulse is requested (after a I2C reading).
If the "stand-by out" and "diag. enable" commands are both given through a single programming step, the pulse
takes place first (power stage still in stand-by mode, low, outputs= high impedance).
ACK
IB1 with D6 = 1
ACK
ACK
DB1
ACK
ACK
IB1
ACK
X000XXXX
ACK
IB1
ACK
X0XXXXXX
ACK
IB1
ACK
XX1XX1XX
ACK
DB1
ACK
2
C bus request. Detectable output faults are:
TDA7575
IB2
ACK
STOP
DB2
ACK
STOP
IB2
ACK
STOP
XXX1XX1X
IB2
ACK
STOP
XXX0XXXX
IB2
ACK
STOP
XXX1XXXX
DB2
ACK
STOP
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