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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9924L датащи(PDF) 37 Page - STMicroelectronics |
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L9924L датащи(HTML) 37 Page - STMicroelectronics |
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37 / 84 page  DocID028840 Rev 3 37/84 L9924L Electrical specifications 83 4.3.14 Pin "GHS" and "GLS" Figure 17. External high current lamp pre-driver circuitry A high current external MOS driver is available in case the lamp/relay system requires more current than the internal MOS can deliver. The GHS and GLS pins are dedicated to drive the external MOSs' gates providing the necessary current. The gate-source-voltage of the external Power-MOS is limited by the driver circuit. 21 tLfilterLS Low-side current limitation filter time Analogue filter time - 40 - μs 22 VLrevHS High-side reverted bias protection over- drive High-side turn-on I(L)>ILpulldw to cause high-side turn-off [i.e. V(L)-V(A+/B+)>0 V] -550 - mV 1. In Power Stand-by mode the pull-up current is -5µA,min. 2. In case of L pin used for RVC protocol (RVC drive mode) I(L)= 20mA,max. 3. The microcontroller application software must take care to respect the value in item #17 Table 22. Electrical characteristics pin "L" (continued) # Symbol Parameter Test condition Min. Typ. Max. Unit |
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