TDA7375AV STMicroelectronics, TDA7375AV Datasheet

IC AMP AUDIO PWR 43W MULTIWATT15

TDA7375AV

Manufacturer Part Number
TDA7375AV
Description
IC AMP AUDIO PWR 43W MULTIWATT15
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of 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)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
497-3974-5

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7375AV
Manufacturer:
ST
0
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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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

... Built–in short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.6.1 4.6.2 4.7 Handling of the diagnostics information . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/20 Rail-to-rail output voltage swing with no need of bootstrap capacitors . 14 Absolute stability without any external compensation . . . . . . . . . . . . . . 14 Diagnostics facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 TDA7375AV ...

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

... The new output stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 23. Single ended configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 24. Clipping detection waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 25. Output fault waveforms (see Figure 26. Fault waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 27. Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 28. Interface circuitry to differentiate the information schematic Figure 29. Multiwatt 15 mechanical data and package dimensions 4/20 Figure Figure Figure 26 TDA7375AV ...

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

... Test condition = ∞ THD = 4Ω L Bridge Single Ended = 2 Ω Single Ended ( 14.4 V, Bridge S ( 13.7 V, Bridge Ω Single Ended 0 Bridge 0 TDA7375AV Value Unit 4 °C -40 to 150 Value Unit max 1.8 °C/W = 25°C, unless otherwise amb Min. Typ. Max. Unit 8 18 ...

Page 7

... TDA7375AV Table 4. Electrical characteristics (continued) (Refer to the test circuit, V specified) Symbol Parameter C Cross talk T R Input impedance IN G Voltage gain V G Voltage gain match V E Input noise voltage IN SVR Supply voltage rejection A Standby attenuation SB I Standby current consumption Standby In threshold voltage ...

Page 8

... C1 0.47μ 0.47μ 47μF DIAGNOSTICS 10K ST-BY 10μ 0.22μ 0.22μF IN BRIDGE 12 0.47μ 47μF DIAGNOSTICS TDA7375AV 100nF 1000μ C10 2200μ 2200μF 15 C11 2200μ C12 2200μF DIAGNOSTICS D94AU063A 100nF 1000μF 1 OUT OUT R 14 ...

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

... TDA7375AV 4 Functional description 4.1 High application flexibility The availability of 4 independent channels makes it possible to accomplish several kinds of applications ranging from 4 speakers stereo (F/ 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 ...

Page 14

... This extra function becomes particularly attractive when, in the single ended configuration, one capacitor is shared between two outputs (see 14/20 of the output transistors, which is in the range CEsat Figure 22 the gain greater than unity, approximately Out In /2) is fixed by an auxiliary amplifier common to all the CC Figure TDA7375AV , S 23). Supposing that the output ...

Page 15

... Figure 23. Single ended configuration 4.6.1 Diagnostics facility The TDA7375AV is equipped with a diagnostic circuitry able to detect the following events: ● Clipping in the output signal ● Thermal shutdown ● ...

Page 16

... 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. 16/20 Figure OUT TO Vs SHORT SOFT SHORT OUT TO GND SHORT CORRECT TURN-ON FAULT DETECTION D94AU149A (TEST PHASE) TDA7375AV 26) SHORT TO GND ...

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

... TDA7375AV OUTLINE AND MECHANICAL DATA Multiwatt15 (Vertical) 0016036 J ® ...

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

... 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 20/20 Please Read Carefully: © 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com TDA7375AV ...

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