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TDA7577BLVPD Fiches technique(PDF) 21 Page - STMicroelectronics

No de pièce TDA7577BLVPD
Description  2 x 75 W dual-bridge power amplifier with I2C complete diagnostics and
PDF  43 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7577BLVPD Fiches technique(HTML) 21 Page - STMicroelectronics

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TDA7577BLV
Diagnostics functional description
42
Figure 31 and 32 shows the load impedance as a function of the peak output voltage and
the relevant diagnostic fields.
It is recommended to keep output voltage always below 8 V (high threshold) or 4 V (low
threshold) to avoid circuit to saturate (causing wrong detection cases).
This feature is disabled if any overloads leading to activation of the short-circuit protection
occurs in the process.
Figure 31. Current detection high: load impedance |Z| vs. output peak voltage
Figure 32. Current detection low: load impedance |Z| vs. output peak voltage



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