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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VN7007ALH датащи(PDF) 23 Page - STMicroelectronics |
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VN7007ALH датащи(HTML) 23 Page - STMicroelectronics |
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23 / 37 page  VN7007ALH Application information 4.4.1 Principle of CurrentSense signal generation Figure 29: CurrentSense block diagram Current sense This output is capable to provide: • Current mirror proportional to the load current in normal operation, delivering current proportional to the load according to known ratio named K • Diagnostics flag in fault conditions delivering fixed voltage VSENSEH The current delivered by the current sense circuit, ISENSE, can be easily converted to a voltage VSENSE by using an external sense resistor, RSENSE, allowing continuous load monitoring and abnormal condition detection. Normal operation (channel ON, no fault) While device is operating in normal conditions (no fault intervention), VSENSE calculation can be done using simple equations Current provided by CurrentSense output: ISENSE = IOUT/K Voltage on RSENSE: VSENSE = RSENSE ∙ ISENSE = RSENSE ∙ IOUT/K DocID027958 Rev 1 23/37 |
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