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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L6482 датащи(PDF) 27 Page - STMicroelectronics |
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L6482 датащи(HTML) 27 Page - STMicroelectronics |
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27 / 73 page  L6482 Functional description Doc ID 023768 Rev 2 27/73 register (Section 9.1.18). When the external clock source is selected, the device continues to work with the integrated oscillator for textosc milliseconds and then the clock management system switches to the OSCIN input. Figure 12. OSCIN and OSCOUT pin configuration Note: When OSCIN is UNUSED, it should be left floating. When OSCOUT is UNUSED, it should be left floating. 6.9 Overcurrent detection The L6482 measures the load current of each half-bridge sensing the VDS voltage of all the Power MOSFETs (Figure 13). When any of the VDS voltages rise above the programmed threshold, the OCD flag in the STATUS register is forced low until the event expires and a GetStatus command is sent to the device (Section 9.1.21 and Section 9.2.20). The overcurrent event expires when all the Power MOSFET VDS voltages fall below the programmed threshold. The overcurrent threshold can be programmed by the OCD_TH register in one of 32 available values ranging from 31.25 mV to 1 V with steps of 31.25 mV (Table 21, Section 9.1.17). UNUSED OSCIN OSCOUT OSCIN OSCOUT OSCIN OSCOUT 2/4/8/16 MHz 8/16/24/32 MHz 8/16/24/32 MHz External oscillator configuration External clock source configuration Internal oscillator configuration with clock generation OSCIN OSCOUT Internal oscillator configuration without clock source UNUSED UNUSED OSC_SEL = "1xx" OSC_SEL = "0xx" CL CL EXT_CLK = "0" EXT_CLK = "1" AM15042v1 |
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