UNISONIC TECHNOLOGIES CO., LTD
100mΩ POWER DISTRIBUTION
The US202/A is a power distribution switch. It is particularly
suitable for self-powered and bus-powered USB (Universal Series
bus) applications. It has 28μA low quiescent supply current that
meets the requirements of battery-powered portable equipments.
A built-in charge pump is used to drive the N-channel N-MOSFET
that is free of parasitic body diode to eliminate any reversed current
flow across the switch when it is powered off.
The US202/A incorporates some protection circuits such as
current limit and short protection circuits, soft start circuit, thermal
shutdown and UVLO (Under-voltage Lockout) protection circuits.
The thermal shutdown circuits protect this device from damage when
over current occurs, and the soft start circuits are used to prevent
inrush current when plug-in event occurs.
The US202/A can be used in such applications such as
battery-powered equipments, motherboard USB power switches,
USB device power switches, hot-plug power supplies,
battery-charger circuits and so on.
* Input Voltage Varies From 2.7V to 5.5V
* Guaranteed Continuous Current: 1.0A/2.0A
* High-Side NMOSFET: 85mΩ (TYP)
* Soft Start
* Current Limit:1.5A/2.5A
* Thermal Protection
* Low Supply Current: 28μA
Copyright © 2018 Unisonic Technologies Co., Ltd
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