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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9960 датащи(PDF) 64 Page - STMicroelectronics |
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L9960 датащи(HTML) 64 Page - STMicroelectronics |
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64 / 95 page  Functional description L9960, L9960T 64/95 DS11115 Rev 10 4.8.3 Global Failure Bit NGFAIL definition NGFAIL groups the following failures: Over-current on each of the 4 MOS (Ion threshold not taken into account, validity bit not taken into account), including the load in short-circuit Open-load in ON-state Open-load (or shorts) in OFF-state HWSC (or BIST) not executed or failing CC_latch_status VDD Over-voltage (latched) VDD Under-voltage (latched) NOTSD_REG UV_CNT_REACHED = 1 and UV counter stop NDIS = 0 (also when forced low externally) Once all the conditions which determine the assertion of NGFAIL are cleared (failure no more present and the latched version of the failure bit is cleared), the bit is de-asserted. In case NGFAIL is flagged because of NOTSD_REG assertion, the flag remains set until a toggle of DIS pin is performed. There is no failure considered on Vps undervoltage, despite the bridge goes in OFF-state. There is no clear of NGFAIL by itself, the reported error itself has to be cleared in order to clear NGFAIL. Note: (-) available in the R4 bit position in SPI answer frame 8a. Table 76. NGFAIL Bit status Description Condition 0failure - 1 no failure default value |
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