TDA7575B-TDA7575BPD-TDA7575BPDTR Fast Delivery |IC PHOENIX CO.,LIMITED

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TDA7575B-TDA7575BPD-TDA7575BPDTR
Differential input, high efficiency (class SB) dual BTL output with full I2C diagnostics, clip detection, stand-by and mute inputs
September 2013 Doc ID 14103 Rev 3 1/32
TDA7575B
2 x 75W multifunction dual-bridge power amplifier
with integrated digital diagnostics
Features Multipower bcd technology MOSFET output power stage DMOS power output New high-efficiency (class AB) Single-channel 1driving capability High output power capability 2x28 W/4  @
14.4 V, 1 kHz, 10 % THD Max. output power 2x75 W/2 1x150 W/1  Single-channel 1  driving capability 84 W undistorted power Full I2 C bus driving with 4 address possibilities: Standby
–Play/mute Gain 12/26 dB Full digital diagnostic (AC and DC loads) Possibility to disable the I2 C bus Differential inputs Full fault protection DC offset detection Two independent short circuit protections Diagnostic on clipping detector with selectable
threshold (2 % / 10 %) Clipping detector as diagnostic pin when I2C
bus is disabled Standby/mute pins ESD protection
Description
The TDA7575B is a new MOSFET dual bridge
amplifier specially intended for car radio
applications. Thanks to the DMOS output stage
the TDA7575B has a very low distortion allowing
a clear powerful sound.
Among the features, its superior efficiency
performance coming from the internal exclusive
structure, makes it the most suitable device to
simplify the thermal management in high power
sets.The dissipated output power under average
listening condition is in fact reduced up to 50%
when compared to the level provided by
conventional class AB solutions.
This device is equipped with a full diagnostic array
that communicates the status of each speaker
through the I2 C bus. The TDA7575B has also the
possibility of driving loads down to 1 paralleling
the outputs into a single channel. It is also
possible to disable the I2 C and control the
TDA7575B by means of the usual standby and
mute pins.

Table 1. Device summary
Contents TDA7575B
2/32 Doc ID 14103 Rev 3
Contents Block and pins diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 I2C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 Data validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Start and stop conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 Byte format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.4 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5 1 W capability setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.6 I2C abilitation setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Software specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.1 Examples of bytes sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Diagnostics functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1 T urn-on diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2 Permanent diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3 Output DC offset detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.4 AC diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.5 Multiple faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.6 Faults availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.7 I2C programming/reading sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
TDA7575B List of tables
Doc ID 14103 Rev 3 3/32
List of tables
Table 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 5. Address selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 6. IB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 7. IB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 8. DB1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 9. DB2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 10. Double fault table for turn-on diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 11. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
List of figures TDA7575B
4/32 Doc ID 14103 Rev 3
List of figures
Figure 1. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Pins connection diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Quiescent drain current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4. Output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 5. Output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. Output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 7. Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 8. Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 9. Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10. Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 11. Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 12. Distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 13. Distortion vs. output voltage (LD mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 14. Cross talk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 15. Cross talk vs. frequency (LD mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 16. CMRRR vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 17. Output attenuation vs. supply voltage (vs. dependent muting). . . . . . . . . . . . . . . . . . . . . . 13
Figure 18. Output attenuation vs. mute pin voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 19. Power dissipation vs. output power (4 - SINE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 20. Power dissipation vs. output power (2 - SINE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 21. Power dissipation vs. average output power (Audio program simulation, 4) . . . . . . . . . . 14
Figure 22. Power dissipation vs. average output power (Audio program simulation, 2) . . . . . . . . . . 14
Figure 23. ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 14
Figure 24. Application circuit (TDA7575B). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 25. Application circuit (TDA7575BPD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 26. Data validity on the I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 27. Timing diagram on the I2C bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 28. Timing acknowledge clock pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 29. Turn-on diagnostic: working principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 30. SVR and output behavior - case 1: without turn-on diagnostic. . . . . . . . . . . . . . . . . . . . . . 23
Figure 31. SVR and output pin behavior - case 2: with turn-on diagnostic . . . . . . . . . . . . . . . . . . . . . 24
Figure 32. Short circuit detection thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 33. Load detection thresholds - high gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 34. Load detection thresholds - high gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 35. Restart timing without diagnostic enable (permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 36. Restart timing with diagnostic enable (permanent). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 37. Current detection high: load impedance |Z| vs. output peak voltage . . . . . . . . . . . . . . . . . 27
Figure 38. Current detection low: load impedance |Z| vs. output peak voltage . . . . . . . . . . . . . . . . . . 27
Figure 39. PowerSO36 (slug up) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . 29
Figure 40. Flexiwatt27 (vertical) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . . . 30
TDA7575B Block and pins diagrams
Doc ID 14103 Rev 3 5/32 Block and pins diagrams
Figure 1. Block diagram
Figure 2. Pins connection diagram (top view)
Electrical specifications TDA7575B
6/32 Doc ID 14103 Rev 3
2 Electrical specifications
2.1 Absolute maximum ratings
Table 2. Absolute maximum ratings
2.2 Thermal data
Table 3. Thermal data
2.3 Electrical characteristics
VS = 14.4 V; f = 1 kHz; RL = 4 ; Tamb= 25 °C unless otherwise specified.

Table 4. Electrical characteristics
TDA7575B Electrical specifications
Doc ID 14103 Rev 3 7/32
Table 4. Electrical characteristics (continued)
Electrical specifications TDA7575B
8/32 Doc ID 14103 Rev 3
Table 4. Electrical characteristics (continued)
TDA7575B Electrical specifications
Doc ID 14103 Rev 3 9/32
Table 4. Electrical characteristics (continued)
Electrical specifications TDA7575B
10/32 Doc ID 14103 Rev 3 Saturated sqare wave output.
Table 4. Electrical characteristics (continued)
TDA7575B Electrical characteristics curves
Doc ID 14103 Rev 3 11/32 Electrical characteristics curves
Figure 3. Quiescent drain current vs. supply
voltage
Figure 4. Output power vs. supply voltage
Figure 5. Output power vs. supply voltage Figure 6. Output power vs. supply voltage
Figure 7. Distortion vs. output power Figure 8. Distortion vs. output power
Electrical characteristics curves TDA7575B
Figure 9. Distortion vs. output power Figure 10. Distortion vs. output power
Figure 11. Distortion vs. output power Figure 12. Distortion vs. frequency
Figure 13. Distortion vs. output voltage
(LD mode)
Figure 14. Cross talk vs. frequency
TDA7575B Electrical characteristics curves
Doc ID 14103 Rev 3 13/32
Figure 15. Cross talk vs. frequency
(LD mode)
Figure 16. CMRRR vs. frequency
Figure 17. Output attenuation vs. supply
voltage (vs. dependent muting)
Figure 18. Output attenuation vs. mute pin
voltage
Figure 19. Power dissipation vs. output power
(4 - SINE)
Figure 20. Power dissipation vs. output power
(2 - SINE)
Electrical characteristics curves TDA7575B Doc ID 14103 Rev 3
Figure 21. Power dissipation vs. average
output power (Audio program
simulation, 4)
Figure 22. Power dissipation vs. average output
power (Audio program simulation,
2)
Figure 23. ITU R-ARM frequency response,
weighting filter for transient pop

TDA7575B Application circuits
Doc ID 14103 Rev 3 15/32
4 Application circuits
Figure 24. Application circuit (TDA7575B)
Figure 25. Application circuit (TDA7575BPD)
I2C bus interface TDA7575B
16/32 Doc ID 14103 Rev 3
5 I2 C bus interface
Data transmission from microprocessor to the TDA7575B and vice versa takes place
through the 2 wires I2 C BUS interface, consisting of the two lines SDA and SCL (pull-up
resistors to positive supply voltage must be connected).
5.1 Data validity
As shown by Figure 26, the data on the SDA line must be stable during the high period of
the clock.
The high and low state of the data line can only change when the clock signal on the SCL
line is low.
5.2 Start and stop conditions
As shown by Figure 27 a start condition is a high to low transition of the SDA line while SCL
is high.
The stop condItion Is A Low To High Transition of the SDA line while SCL is high.
5.3 Byte format
Every byte transferred to the SDA line must contain 8 bits. Each byte must be followed by an
acknowledge bit. The MSB is transferred first.
5.4 Acknowledge
The transmitter(*) puts a resistive HIGH level on the SDA line during the acknowledge clock
pulse (see Figure 28). The receiver(**) the acknowledges has to pull-down (LOW) the SDA
line during the acknowledge clock pulse, so that the SDA line is stable LOW during this clock
pulse.
(*) Transmitter
=master (P) when it writes an address to the TDA7575B slave (TDA7575B) when the µP reads a data byte from TDA7575B
(**) Receiver slave (TDA7575B) when the µP writes an address to the TDA7575B
=master (P) when it reads a data byte from TDA7575B
Figure 26. Data validity on the I2 C bus

Partno	Mfg	Dc	Qty	Available	Descript
TDA7575B	ST	N/a	120	avai	Differential input, high efficiency (class SB) dual BTL output with full I2C diagnostics, clip detection, stand-by and mute inputs
TDA7575BPD	ST,ST	N/a	10000	avai	Differential input, high efficiency (class SB) dual BTL output with full I2C diagnostics, clip detection, stand-by and mute inputs
TDA7575BPD	ST	N/a	20	avai	Differential input, high efficiency (class SB) dual BTL output with full I2C diagnostics, clip detection, stand-by and mute inputs
TDA7575BPD	STM	N/a	10000	avai	Differential input, high efficiency (class SB) dual BTL output with full I2C diagnostics, clip detection, stand-by and mute inputs
TDA7575BPDTR	ST	N/a	40040	avai	Differential input, high efficiency (class SB) dual BTL output with full I2C diagnostics, clip detection, stand-by and mute inputs