ST TDA7375V Manual

Manual is about: 2 x 35W dual/quad power amplifier for car radio

Summary of TDA7375V

  • Page 1

    1/15 tda7375v september 2013 1 features ■ 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 c...

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    Tda7375v 2/15 3 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 perform...

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    3/15 tda7375v table 4. Electrical characteristcs (refer to the test circuit, v s = 14.4v; r l = 4 ; f = 1khz; t amb = 25°c, unless otherwise specified) (*) see built-in s/c protection description (**) pin 10 pulled-up to 5v with 10k ; r l = 4 (***) saturated square wave output. Symbol parameter te...

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    Tda7375v 4/15 4 standard test and application circuit figure 4. Quad stereo figure 5. Double bridge figure 6. Stereo/bridge c1 0.22 μf 1 diagnostics 4 7 c10 2200 μf d94au063a c7 10 μf 10k r1 st-by in fl c2 0.22 μf in fr 5 c4 0.22 μf 12 in rl c3 0.22 μf in rr 11 c8 47 μf 6 13 c5 1000 μf c6 100nf 3 vs...

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    5/15 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.

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    Tda7375v 6/15 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 volt...

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    7/15 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.

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    Tda7375v 8/15 figure 21. Total power dissipation and efficiency vs. Output power figure 22. Total power dissipation and efficiency vs. Output power 5 general structure 5.1 high application flexibility the availability of 4 independent channels makes it possible to accomplish several kinds of applica...

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    9/15 tda7375v driven by a voltage source whose current capability is higher than 5ma. In practical cases a series resis- tance has always to be inserted, having it the double purpose of limiting the current at pin 7 and to smooth down the stand-by on/off transitions - in combination with a capacitor...

  • Page 10

    Tda7375v 10/15 vice itself and for the loudspeaker. This particular kind of protection acts in a way to avoid that the device is turned on (by st-by) when a resistive path (less than 16 ohms) is present between the output and gnd. As the involved circuitry is nor- mally disabled when a current highe...

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    11/15 tda7375v figure 26. Output fault waveforms (see fig. 27) figure 27. Fault waveforms 5.8 handling of the diagnostics information as various kinds of information is available at the same pin (clipping detection, output fault, thermal prox- imity), this signal must be handled properly in order to...

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    Tda7375v 12/15 figure 28. Waveforms figure 29. Interface circuitry to differentiate the information schematic 5.9 pcb-layout grounding (general rules) the device has 2 distinct ground leads, p-gnd (power ground) and s-gnd (signal ground) which are practically disconnected from each other at chip lev...

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    13/15 tda7375v 6 package information in order to meet environmental requirements, st (also) offers these devices in ecopack® packages. Ecopack® packages are lead-free. The category of second level interconnect is marked on the pack- age and on the inner box label, in compliance with jedec standard j...

  • Page 14

    Tda7375v 14/15 7 revision history table 5. Revision history date revision description of changes july 2004 2 first issue in edocs march 2005 3 changed the style-sheet in compliance to the new “corporate technical pubblications design guide”. Deleted package multiwatt15 horizontal. 01-jul-2008 4 upda...

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    15/15 tda7375v please read carefully: information in this document is provided solely in connection with st products. Stmicroelectronics nv and its subsidiaries (“st”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services descr...