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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9924TR датащи(PDF) 31 Page - STMicroelectronics |
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L9924TR датащи(HTML) 31 Page - STMicroelectronics |
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31 / 85 page  DocID029638 Rev 2 31/85 L9924 Electrical specifications 84 5.3.11 Pin "F" F pin is an input used to import a feedback of the field driver activity. The signal coming from field is compared to a threshold VFdet and forwarded to a µC timer port. The F signal behavior is related to the system configuration (low side or high side). 5.3.12 Pin "CSA_IN" The CSA_IN pin is an input dedicated to rotor current sensing in high side configuration only. The rotor current can be measured by means of an external sense resistor. The current sense amplifier output is connected to the µC AIN0 analog input. Rsense must be inserted between MOS drain and A+/B+, keeping all connections towards CSA_IN A+/B+ EPONA pins as short as possible. Figure 11. High-side configuration. 5VGSth Gate to source voltage threshold for drain-to source voltage monitoring - 4.755.3 V 6tSCfilter Short circuit filter time Analogue filter - 15 - µs Table 20. Electrical characteristics pin "DRAIN" and "SOURCE" (continued) # Symbol Parameter Test condition Min. Typ. Max. Unit Table 21. Electrical characteristics pin "F" # Symbol Parameter Test condition Min. Typ. Max. Unit 1VFdet Voltage threshold input comparator -- 4.2 - V |
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