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UCS1002-2 Datasheet(PDF) 20 Page - Microchip Technology |
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UCS1002-2 Datasheet(HTML) 20 Page - Microchip Technology |
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20 / 114 page  Programmable USB Port Power Controller with Charger Emulation Datasheet Revision 1.4 (07-16-13) 20 SMSC UCS1002 DATASHEET 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 < TTSDProgrammable, 250 - 1000 mV, default listed Discharge Impedance RDISCHARGE 100 Ω Port Power Switch - AC Parameters Turn On Delay tON_PSW 0.75 ms PWR_EN active toggle to switch on time, VBUS discharge not active Turn Off Time tOFF_PSW_INA 0.75 ms PWR_EN inactive toggle to switch off time CBUS = 120 μF Turn Off Time tOFF_PSW_ERR 1 ms Over-current Error, VBUS Min Error, or Discharge Error to switch off CBUS = 120 μF Turn Off Time tOFF_PSW_ERR 100 ns TSD or Back-drive Error to switch off CBUS = 120 μF VBUS Output Rise Time tR_BUS 1.1 ms Measured from 10% to 90% of VBUS, CLOAD = 220 μF ILIM = 1.0 A Soft Turn on Rate ΔIBUS / Δt 100 mA / µs Temperature Update Time tDC_TEMP 200 ms Programmable 200 - 1600 ms, default listed 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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