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UCS1003-3-BP Arkusz danych(PDF) 10 Page - Microchip Technology |
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UCS1003-3-BP Arkusz danych(HTML) 10 Page - Microchip Technology |
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10 / 138 page  UCS1003-1/2/3 DS20005346B-page 10 2014-2015 Microchip Technology Inc. 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 is 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 = 0V, Die Temp < TTSD Auto-Recovery Test Voltage VTEST — 750 — mV Portable device attached, VBUS = 0V before application, Die Temp < TTSD programmable (UCS1003-1 only) , 250-1000 mV, default listed Discharge Impedance RDISCHARGE —100 — Port Power Switch – AC Parameters Turn-On Delay tON_PSW — 0.75 — ms PWR_EN active toggle to switch on time, VBUS discharge is 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 Overcurrent error, VBUS min error or discharge error to switch off, CBUS = 120 μF Turn-Off Time tOFF_PSW_ERR — 100 — ns TSD or backdrive 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 = 1.0A Soft Turn-on Rate IBUS/t —100 — mA/µs Temperature Update Time tDC_TEMP — 200 — ms Programmable (UCS1003-1 only) 200-1600 ms, default listed TABLE 1-2: ELECTRICAL CHARACTERISTICS (CONTINUED) Electrical Characteristics: Unless otherwise specified, VDD = 4.5V to 5.5V, VS = 2.9V to 5.5V, VPULLUP = 3V to 5.5V, TA = -40°C to +85°C; all Typical values at VDD = VS = 5V, TA = +27°C. Characteristic Sym. Min. Typ. Max. Unit Conditions Note 1: For split supply systems using the Attach Detection feature, VS must not exceed VDD +150 mV. 2: This parameter is ensured by design and not 100% tested. 3: This parameter is characterized, but not 100% production tested. 4: The current measurement full-scale range maximum value is 3.0A. However, the UCS1003-1 cannot report values above ILIM (if IBUS_R2MIN ILIM) or above IBUS_R2MIN (if IBUS_R2MIN > ILIM and ILIM 1.68A). 5: The Min and Max values represent the boundaries of a programmable range for UCS1003-1 only. Each value in the range is typical. |
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