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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AS1310 датащи(PDF) 18 Page - ams AG |
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AS1310 датащи(HTML) 18 Page - ams AG |
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18 / 30 page  Page 18 ams Datasheet Document Feedback [v1-11] 2015-Jan-28 AS1310 − Application Information The AS1310 is available with fixed output voltages from 1.8V to 3.3V in 50mV steps. Figure 18: AS1310 Block Diagram AS1310 Features Shutdown. The part is in shutdown mode while the voltage at pin EN is below 0.1V and is active when the voltage is higher than 0.7V. Note(s): EN can be driven above VIN or VOUT, as long as it is limited to less than 3.6V. Output Disconnect and Inrush Limiting. During shutdown VOUT is going to 0V and no current from the input source is running through the device. This is true as long as the input voltage is higher than the output voltage. Feedthrough Mode. If the input voltage is higher than the output voltage the supply voltage is connected to the load through the device. To guarantee a proper function of the AS1310 it is not allowed that the supply exceeds the maximum allowed input voltage (3.6V). In this feedthrough mode the quiescent current is 35μA (typ.). The device goes back into step-up mode when the oputput voltage is 4% (typ.) below VOUTNOM. Application Information VIN 0.7V to 3.6V Driver & Control Logic Imax Detection Zero Crossing Detector Startup Circuitry + - + - VREF CIN 22μF GND REF CREF 100nF LX L1 6.8μF LBI VIN VOUT 1.8V to 3.3V VOUT LBO R3 COUT 22μF + - AS1310 ON OFF EN 0.6V 92.5% VREF 100mV |
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