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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) 20 Page - Microchip Technology |
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UCS1001 датащи(HTML) 20 Page - Microchip Technology |
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20 / 59 page  USB Port Power Controller with Charger Emulation Datasheet Revision 1.2 (05-21-12) 20 SMSC UCS1001 DATASHEET Note 3.2 For split supply systems using the Attach Detection feature, VS must not exceed VDD + 150 mV. Port Power Switch Operation With Trip Mode Current Limiting Region 2 Current Keep- out IBUS_R2MIN 0.1 A Minimum VBUS Allowed at Output VBUS_MIN 2.0 V Port Power Switch Operation With Constant Current Limiting (Variable Slope) Region 2 Current Keep- out IBUS_R2MIN 1.5 A Minimum VBUS Allowed at Output VBUS_MIN 2.0 V VBUS Bypass - DC On Resistance RON_BYP 50 Leakage Current ILEAK_BYP 3 µA Switch off Current Limit IDET_CHG / IBUS_BYP 2 mA VDD = 5 V and VBUS> 4.75 V Allowed Charge Time tDET_CHARGE 800 ms CBUS = 500 µF max Charger Emulation Profile General Emulation - DC DP-DM Shunt Resistor Value RDCP_RES 200 Connected between DPOUT and DMOUT 0 V < DPOUT = DMOUT < 3V Voltage Output SX_RXMAG_ VOLT_BC 0.5 V DMOUT 250 µA load Pull-down Current SX_PUPD _ACC_BC 50 µA DPOUT or DMOUT = 0.15 V Compliance voltage General Emulation - AC Emulation Reset Time tEM_RESET 50 ms 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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