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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9301 датащи(PDF) 30 Page - STMicroelectronics |
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L9301 датащи(HTML) 30 Page - STMicroelectronics |
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30 / 51 page  Low side driver L9301 30/51 DocID028688 Rev 6 9.3.4 OFF state diagnostic The device provides the off-state diagnostic for each channel. The short to ground and open load faults can be detected. The fault is reported in a SPI register. Figure 12. LS configuration diagnostic The diagnostic blanking time is configurable through the dedicated diagoff_blank_sel bit. 9.3.5 DLOSS In case the device is configured as low side and external diodes are used for freewheeling, there is the possibility through a dedicated SPI bit to enable the ‘diode loss’ diagnosis that is used to detect if the external diode is no more connected checking if during the OFF phase the internal clamp is activated. Another SPI bit allows to configure the actions to be taken in case of DLOSS fault. Table 20. LS diagnostic DIAGOL DIAGLV FAULT DETECTION 0 0 no fault 0 1 not possible 1 0 open load 1 1 short to ground |
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