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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9678P датащи(PDF) 151 Page - STMicroelectronics |
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L9678P датащи(HTML) 151 Page - STMicroelectronics |
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151 / 203 page  DocID029274 Rev 3 151/203 L9678P, L9678P-S Safing logic 202 Figure 49. Safing engine diagnostic logic A configurable mask for each internal ARMxINT signal is available for all of the integrated deployment loops (refer to ARMx assignment registers (LOOP_MATRIX_ARMx) on page 97). The un-masked ARMxINT signal for each loop will enable the respective loop drivers (refer to Figure 21). Activation of VSF (regulation rail for High Side Safing FET) occurs upon ARMxINT or FENH/FENL, depending on SPI configuration (refer to Figure 17). Actual High Side Safing FET activation still requires microcontroller signal. L9678P is able to provide arming signals to external deployment loops by means of the discrete output ARM pin. The ARM pin can either output an arming signal generated by the integrated safing engine or an arming signal made by the combination of FENH and FENL input signals, coming from external safing logic. Figure 50. ARM output control logic |
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