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L9301 Datasheet(PDF) 24 Page - STMicroelectronics |
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L9301 Datasheet(HTML) 24 Page - STMicroelectronics |
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24 / 51 page  Configurable high/low side driver L9301 24/51 DocID028688 Rev 6 In high-side configuration the short to battery and open load faults can be detected. The fault is reported in a SPI register. Figure 10. HS configuration diagnostic The diagnostic blanking time is configurable through the dedicated diagoff_blank_sel bit. The OFF diagnosis is triggered at driver OFF CMD and will not be refreshed after clearing the flags. To recover the OFF diagnosis in OFF stage, send SPI to disable OFF diagnosis and then enable it. Table 15. LS diagnostic DIAGOL DIAGLV FAULT DETECTION 0 0 no fault 0 1 not possible 1 0 open load 1 1 short to ground Table 16. HS diagnostic DIAGOL DIAGLV FAULT DETECTION 0 0 short to ground 0 1 not possible 1 0 open load 1 1 no fault |
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