Infineon PROFET+2 12V Arduino Shield User Manual page 12

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PROFET +2 12V Arduino Shield
2 Board description
Figure 7 Application diagram with open load detection circuitry
Open load in OFF software flow principle:
• IN = low; DEN = high;
• activate pull-up(OLOFF = high);
• read IS(A2 - P2.9/A3 - P2.10) ;
• If IS = IIS(OLOFF)
• deactivate pull-up(OLOFF = low);
• read IS (A2 - P2.9/A3 - P2.10);
• If IS = I
IS(OLOFF)
• short-to-battery detected;
• else open load detected;
• else
• if IS = I
IS(fault)
• short-to-ground or overtemperature detected;
• else
• normal load condition detected;
• deactivate pull-up (OLOFF = low);
• end;
User Manual 12 Rev. 1.00
2019-10-23