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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UCS1001 датащи(PDF) 18 Page - Microchip Technology |
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UCS1001 датащи(HTML) 18 Page - Microchip Technology |
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18 / 59 page  USB Port Power Controller with Charger Emulation Datasheet Revision 1.2 (05-21-12) 18 SMSC UCS1001 DATASHEET Selectable Current Limits ILIM1 450 467 500 mA ILIM Resistor = 47 k (500 mA setting) ILIM2 810 839 900 mA ILIM Resistor = 56 k (900 mA setting) ILIM3 900 932 1000 mA ILIM Resistor = 68 k (1000 mA setting) ILIM4 1080 1112 1200 mA ILIM Resistor = 82 k (1200 mA setting) ILIM5 1350 1385 1500 mA ILIM Resistor = 100 k (1500 mA setting) ILIM6 1620 1702 1800 mA ILIM Resistor = 120 k (1800 mA setting) ILIM7 1800 1892 2000 mA ILIM Resistor = 150 k (2000 mA setting) ILIM8 2250 2355 2500 mA ILIM Resistor = VDD (2500 mA setting) Thermal Regulation Limit TREG 110 °C Die Temperature at which current limit will be reduced Thermal Regulation Hysteresis TREG_HYST 10 °C Hysteresis for tREG functionality. Temperature must drop by this value before ILIM value restored to normal operation Thermal Shutdown Threshold TTSD 135 °C Die Temperature at which port power switch will turn off Thermal Shutdown Hysteresis TTSD_HYST 35 °C After shutdown due to TTSD being reached, die temperature drop required before port power switch can be turned on again Auto-recovery Test Current ITEST 190 mA Portable device attached, VBUS = 0 V, Die temp < TTSD Auto-recovery Test Voltage VTEST 750 mV Portable device attached, VBUS = 0 V before application, Die temp < TTSD Discharge Impedance RDISCHARGE 100 Table 3.3 Electrical Specifications (continued) VDD = 4.5 V to 5.5 V, VS = 2.9 V to 5.5 V, VPULLUP = 3V to 5.5V, TA = -40 °C to 85 °C all Typical values at VDD = VS = 5 V, TA = 27 °C unless otherwise noted. CHARACTERISTIC SYMBOL MIN TYP MAX UNIT CONDITIONS |
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