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US201B Datasheet PDF

Unisonic Technologies US201B

The UTC US201/A/B/C series are 80mΩ high-side power switches. This MOSFET should be driven by a charge pump circuitry inside.
Part No. US201B
Datasheet US201B Download
Manufacturer
Unisonic Technologies
Description HIGH-SIDE POWER SWITCHES
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US201B datasheet page 1 preview

DESCRIPTION

There’s internal single low voltage N-Channel MOSFET which makes it an ideal for all USB applications. Its switch on resistance is as low as 80mΩ which we know specially meets the drop voltage for USB applications. The flag pin can output an open-drain fault flag to next controller. There’re lots internal special ways for protecting the chip’s operation. When in hot-plug events, there’s large current which can create the upstream voltage droop to match the USB’s voltage droop requirements and soft-start for isolating the power source. As soon as the die temperature is higher than 130℃, the internal shutdown circuit will work. Only when there’s a normal input voltage in the VIN pin, the UVLO (under-voltage lockout, 1.3V/2.5V typ.) can make sure the chip is till in the off state. Because of the requirement of USB power the fault current should be ensured less than 0.6A/1.1A (UTC US201/A, single port) and 1.3A /1.5A (UTC US201B/C, dual ports).
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FEATURES

* 80mΩ(Typ) N-Channel...
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