US236H数据手册UTC中文资料规格书

描述 Description

The UTC US236H is a power distribution switch. It is intendedfor USB applications where heavy capacitive loads andshort-circuits are likely to be encountered. It switches outputvoltage to 5VSB at S3/S4/S5 states with 400mΩ switch and 200mAContinuous Load Current; to 5VCC at S0/S1/S2 states with 80mΩswitch and 1.5A Continuous Load Current.The UTC US236H

特性 Features

an active-high enable control input.Quiescent Supply Current is only 50uA when enabled, but standbycurrent down to less than 1uA when disabled.Optimal switch logic according to S3# and 5VCC status ensuresseamless output voltage transition.The UTC US236H device limits the output current to a safelevel by switching into a constant-current mode when the outputload exceeds the current-limit threshold or a short is present. Softstart function limits the inrush current from supply input whenenabled or during plug-in. Thermal shutdown function preventscatastrophic switch failure from high-current loads. Under-voltagelockout (UVLO) ensures that the device remains off unless there isa valid input voltage present. OC is open-drain output to reportover-current and over-temperature event.FEATURES Operating Range: 4.5V~5.5V Quiescent Supply Current: 50uA (TYP.) Standby Supply Current: 1µA (Max.) Output Voltage Switch to 5VSB at S3/S4/S5400mΩ High Side Switch200mA Continuous Load Current Output Voltage Switch to 5VCC at S0/S1/S280mΩ High Side Switch1.5A Continuous Load Current Built-in Soft-Start Fast Turn Off Enable Active-High Meets USB Current-Limiting Requirements