E-TDA7375AV STMicroelectronics, E-TDA7375AV Datasheet

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E-TDA7375AV

Manufacturer Part Number
E-TDA7375AV
Description
IC AMP AUDIO PWR 40W MULTIWATT1
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of E-TDA7375AV

Output Type
2-Channel (Stereo) or 4-Channel (Quad)
Max Output Power X Channels @ Load
43W x 2 @ 4 Ohm; 12W x 4 @ 2 Ohm
Voltage - Supply
8 V ~ 18 V
Features
Depop, Short-Circuit and Thermal Protection, Standby
Mounting Type
Through Hole
Package / Case
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Operational Class
Class-AB
Audio Amplifier Output Configuration
1-Channel Mono/2-Channel Stereo/4-Channel Stereo
Audio Amplifier Function
Speaker
Single Supply Voltage (typ)
14.4V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Requirement
Single
Power Dissipation
36W
Rail/rail I/o Type
Rail to Rail Output
Single Supply Voltage (min)
8V
Single Supply Voltage (max)
18V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 150C
Operating Temperature Classification
Automotive
Mounting
Through Hole
Pin Count
15 +Tab
Package Type
MULTIWATT V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
Q4762405
Features
Protections
Table 1.
December 2008
High output power capability
– 2 x 43 W max./4 Ω
– 2 x 37 W/4 Ω EIAJ
– 2 x 26 W/4 Ω @14.4 V, 1 kHz, 10 %
– 4 x 7 W/4 Ω @14.4 V, 1 kHz, 10 %
– 4 x 12 W/2 Ω @14.4 V, 1 kHz, 10 %
Minimum external components count:
– No bootstrap capacitors
– No Boucherot cells
– Internally fixed gain (26 dB BTL)
– Standby function (CMOS compatible)
No audible pop during standby operations
Diagnostics facility for:
– Clipping
– Out to GND short
– Out to V
– Soft short at turn-on
– Thermal shutdown proximity
Output AC/DC short circuit
– To GND
– To V
– Across the load
Soft short at turn-on
Overrating chip temperature with soft thermal
limiter
S
TDA7375AV
Order code
Device summary
S
short
2 x 37W dual/quad power amplifier for car radio
Multiwat15
Package
Rev 3
Description
The TDA7375AV is a 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
guarantee 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
Load dump voltage surge
Very inductive loads
Fortuitous open GND
Reversed battery
ESD
Multiwatt15
TDA7375AV
Packing
Tube
.
www.st.com
1/20
1

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E-TDA7375AV Summary of contents

Page 1

... Reversed battery ■ ESD Description The TDA7375AV is a 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 guarantee the highest possible power performances with extremely reduced component count ...

Page 2

... Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Standard test and application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.1 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 High application flexibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 Easy single ended to bridge transition . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.3 Gain internally fixed to 20dB in single ended, 26dB in bridge . . . . . . . . . 13 4.4 Silent turn on/off and muting/standby function . . . . . . . . . . . . . . . . . . . . . 13 4 ...

Page 3

... TDA7375AV List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 3. Thermal data Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 5. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 List of tables 3/20 ...

Page 4

... Distortion vs. output power (4W, BTL Figure 16. Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 17. Supply voltage rejection vs. frequency (BTL Figure 18. Supply voltage rejection vs. frequency (S.E Figure 19. Standby attenuation vs. threshold voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 20. Total power dissipation and efficiency vs. output power (S.E.). . . . . . . . . . . . . . . . . . . . . . 12 Figure 21. Total power dissipation and efficiency vs. output power (BTL Figure 22 ...

Page 5

... TDA7375AV 1 Block and pin connection diagrams Figure 1. Block diagram Figure 2. Pin connection (top view) Block and pin connection diagrams 5/20 ...

Page 6

... Absolute maximum ratings Table 2. Absolute maximum ratings Symbol V Operating supply voltage supply voltage S V Peak supply voltage (for t = 50ms) peak I Output peak current (not repetitive t = 100μ Output peak current (repetitive f > 10Hz Power dissipation (T tot Storage and junction temperature stg j 2.2 Thermal data Table 3 ...

Page 7

... Clipping detector output average current V Voltage saturation on pin 10 sat pin10 1. Saturated square wave output. 2. See built-in S/C protection description 3. Pin 10 pulled- with 10 kΩ 14.4V 4Ω 1kHz Test condition kHz Single ended kHz Single ended kHz Bridge kHz Bridge ...

Page 8

... Standard test and application circuits 3 Standard test and application circuits Figure 3. Quad stereo circuit Note: The output decoupling capacitors (C9,C10,C11,C12) could be reduced μ Ω to 1000 F if the 2 operation is not required. Figure 4. Double bridge circuit Figure 5. Stereo/bridge circuit 8/20 10K R1 ST-BY C7 10μF ...

Page 9

... TDA7375AV Figure 6. PCB and component layout of the Figure 7. PCB and component layout of the Standard test and application circuits Figure 3 Figure 4 9/20 ...

Page 10

... Figure 10. Output power vs. supply voltage (2Ω, S.E.) Figure 12. Output power vs. supply voltage (4Ω, BTL) 10/20 Figure 9. Quiescent output voltage vs. supply voltage (Single ended and bridge) Figure 11. Output power vs. supply voltage (4Ω, S.E.) Figure 13. Distortion vs. output power (2Ω, S.E.) TDA7375AV ...

Page 11

... TDA7375AV Figure 14. Distortion vs. output power (4Ω, S.E.) Figure 16. Crosstalk vs. frequency Figure 18. Supply voltage rejection vs. frequency (S.E.) Standard test and application circuits Figure 15. Distortion vs. output power (4Ω, BTL) Figure 17. Supply voltage rejection vs. frequency (BTL) Figure 19. Standby attenuation vs. threshold voltage 11/20 ...

Page 12

... Standard test and application circuits Figure 20. Total power dissipation and efficiency vs. output power (S.E.) 12/20 Figure 21. Total power dissipation and efficiency vs. output power (BTL) TDA7375AV ...

Page 13

... Silent turn on/off and muting/standby function The standby 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 = 1μA typ.; ...

Page 14

... Standby) when a resistive path (less than 16 ohms) is present between the output and GND. As the involved circuitry is normally disabled when a current higher than 5mA is flowing into the ST-BY pin important, in order not to disable it, to have the external current source driving the ST-BY pin limited to 5mA. ...

Page 15

... The information is available across an open collector output (pin 10) through a current sinking when the event is detected A current sinking at pin 10 is triggered when a certain distortion level is reached at any of the outputs. This function allows gain compression possibility whenever the amplifier is over driven. ...

Page 16

... This could be done by taking into account the different timing of the diagnostic output during each case. Normally the clip detector signalling produces a low level at pin 10 that is shorter referred to every kind of fault detection; based on this assumption an interface circuitry to differentiate the information is represented in the following schematic. ...

Page 17

... TDA7375AV Figure 27. Waveforms ST-BY PIN VOLTAGE Vs OUTPUT WAVEFORM Vpin 10 WAVEFORM Figure 28. Interface circuitry to differentiate the information schematic CLIPPING SHORT TO GND D94AU150 Functional description THERMAL PROXIMITY 17/20 ...

Page 18

... Package information 5 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ECOPACK trademark. Figure 29. Multiwatt 15 mechanical data and package dimensions DIM ...

Page 19

... TDA7375AV 6 Revision history Table 5. Document revision history Date 24-Jul-2008 15-Mar-2005 05-Dec-2008 Revision 1 Initial release. 2 Removed the package Multiwatt 15 horizontal. Document reformatted. 3 Updated Section 5: Package Revision history Changes information. 19/20 ...

Page 20

... The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America ...

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