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L9779WD Datasheet(PDF) 68 Page - STMicroelectronics

Part # L9779WD
Description  Multifunction IC for engine management system
PDF  170 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9779WD Datasheet(HTML) 68 Page - STMicroelectronics

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L9779WD
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DocID027452 Rev 5
For LSc(OUT19,20) the IOUT_PD/IOUT_PU can be switched off by OFF_LCDR bit and
therefore the Open Load and Short To GND detections are not available.
Figure 40. LSx diagnosis circuit
Figure 41. Fault encoding condition diagram
Table 28. Fault encoding condition
Bit n
Bit n+1
Description
1
1
Power stage OK no Fail
0
1
Open Load OL
1
0
Short circuit to VB/over current SGB
0
0
Short circuit to GND SCG



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