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E-TDA7375V |ETDA7375VSTN/a2400avaiQuad SE or dual BTL output power amplifier with stand-by input and clip detection


E-TDA7375V ,Quad SE or dual BTL output power amplifier with stand-by input and clip detectionFEATURESFigure 1. Package■ HIGH OUTPUT POWER CAPABILITY:– 2 x 40W max./4– 2 x 35W/4 EIAJMULTIWATT ..
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E-TDA7375V
Quad SE or dual BTL output power amplifier with stand-by input and clip detection
TDA7375V
1FEATURES
HIGH OUTPUT POWER CAPABILITY: 2 x 40W max./4 2 x 35W/4 EIAJ 2 x 35W/4 EIAJ 2 x 25W/4 @14.4V, 1KHz, 10% 4 x 7W/4 @14.4V,1KHz, 10% 4 x 12W/2 @14.4V, 1KHz, 10% MINIMUM EXTERNAL COMPONENTS
COUNT: NO BOOTSTRAP CAPACITORS NO BOUCHEROT CELLS INTERNALLY FIXED GAIN (26dB BTL) ST-BY FUNCTION (CMOS COMPATIBLE) NO AUDIBLE POP DURING ST-BY
OPERATIONS DIAGNOSTICS FACILITY FOR: CLIPPING OUT TO GND SHORT
–OUT TO VS SHORT SOFT SHORT AT TURN-ON THERMAL SHUTDOWN PROXIMITY PROTECTIONS: OUPUT AC/DC SHORT CIRCUIT
–TO GND
–TO VS ACROSS THE LOAD SOFT SHORT AT TURN-ON OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER LOAD DUMP VOLTAGESURGE VERY INDUCTIVE LOADS FORTUITOUS OPEN GND REVERSED BATTERY ESD
2 x 35W dual/quad power amplifier for car radio
Figure 2. Block Diagram
TDA7375V DESCRIPTION
The TDA7375V is a new technology class AB car radio amplifier able to work either in DUAL BRIDGE or
QUAD SINGLE ENDED configuration.
The exclusive fully complementary structure of the output stage and the internally fixed gain guarantees
the highest possible power performances with extremely reduced component count.
The on-board clip detector simplifies gain compression operation. The fault diagnostics makes it possible
to detect mistakes during car radio set assembly and wiring in the car.
Table 2. Absolute Maximum Ratings
Table 3. Thermal Data
Figure 3. Pin Connection (Top view)
TDA7375V
Table 4. Electrical Characteristcs (Refer to the test circuit, VS = 14.4V; RL = 4; f = 1KHz; Tamb = 25°C,

unless otherwise specified)
(*) See built-in S/C protection description
TDA7375V STANDARD TEST AND APPLICATION CIRCUIT
Figure 4. Quad Stereo
Figure 5. Double Bridge
Figure 6. Stereo/Bridge
TDA7375V
Figure 7. P.C. Board and Component Layout of the fig.4
Figure 8. P.C. Board and Component Layout of the fig.5
TDA7375V
Figure 9. Quiescent Drain Current vs. Supply
Voltage (Single Ended and Bridge).
Figure 10. Quiescent Output Voltage vs.
Supply Voltage (Single Ended and
Bridge).
Figure 11. Output Power vs. Supply Voltage
Figure 12. Output Power vs. Supply Voltage
Figure 13. OutputPower vs. Supply Voltage
Figure 14. Distortion vs. Output Power
TDA7375V
Figure 15. Distortion vs. Output Power
Figure 16. Distortion vs. Output Power
Figure 17. Cross-talk vs. Frequency
Figure 18. Supply Voltage Rejection vs.
Frequency
Figure 19. Supply Voltage Rejection vs.
Frequency
Figure 20. Stand-by Attenuation vs. Threshold
Voltage
TDA7375V
Figure 21. Total Power Dissipation and
Efficiency vs. Output Power
Figure 22. Total Power Dissipation and
Efficiency vs. Output Power GENERAL STRUCTURE
5.1 High Application Flexibility

The availability of 4 independent channels makes it possible to accomplish several kinds of applications
ranging from 4 speakers stereo (F/R) to 2 speakers bridge solutions.
In case of working in single ended conditions the polarity of the speakers driven by the inverting amplifier
must be reversed respect to those driven by non inverting channels. This is to avoid phase inconveniences
causing sound alterations especially during the reproduction of low frequencies.
5.2 Easy Single Ended to Bridge Transition

The change from single ended to bridge configurations is made simply by means of a short circuit across
the inputs, that is no need of further external components.
5.3 Gain Internally Fixed to 20dB in Single Ended, 26dB in Bridge

Advantages of this design choice are in terms of: componentsand space saving output noise, supply voltage rejection and distortion optimization.
5.4 Silent Turn On/Off and Muting/Stand-by Function

The stand-by can be easily activated by means of a CMOS level applied to pin 7 through a RC filter.
Under stand-by condition the device is turned off completely (supply current = 1A typ.; output attenuation
= 80dB min.). Every ON/OFF operation is virtually pop free. Furthemore, at turn-on the device stays in
muting condition for a time determined by the value assigned to the SVR capacitor.
While in muting the device outputs becomes insensitive to any kinds of signal that may be present at the
input terminals. In other words every transient coming from previous stages produces no unplesantacous-
tic effect to the speakers.
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