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What is US202?

This electronic component, produced by the manufacturer "Unisonic Technologies", performs the same function as "POWER DISTRIBUTION SWITCHES".


US202 Datasheet PDF - Unisonic Technologies

Part Number US202
Description POWER DISTRIBUTION SWITCHES
Manufacturers Unisonic Technologies 
Logo Unisonic Technologies Logo 


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No Preview Available ! US202 datasheet, circuit

UNISONIC TECHNOLOGIES CO., LTD
US202
Preliminary
100mPOWER DISTRIBUTION
SWITCHES
„ DESCRIPTION
The US202 is a power distribution switch. It is particularly suitable
for self-powered and bus-powered USB (Universal Series bus)
applications. It has 23μA 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 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 can be used in such applications such as
battery-powered equipments, motherboard USB power switchs, USB
device power switchs, hot-plug power supplies, battery-charger
circuits and so on.
„ FEATURES
* Input Voltage Varies From 2.2V to 6V
* Guaranteed Continuous Current: 1.1A
* High-Side NMOSFET: 100m(TYP)
* Soft Start
* Current Limit:1.5A
* Thermal Protection
* Low Supply Current: 23μA
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
US202XL-AF5-R
US202XG-AF5-R
Package
SOT-25
CMOS IC
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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QW-R502-445.b

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US202 equivalent
US202
„ TEST CIRCUIT
Preliminary
CMOS IC
VIN VIN
VCE CE
CIN +
1µF
On
Off
VOUT
GND
VOUT
IOUT
VOUT
CL +
1µF
RL IL
Test Circuit 2
Test Circuit 1 is performed by charging an external tank of bulk capacitor to the input then applying this voltage to
the input of the unit.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 7
QW-R502-445.b


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for US202 electronic component.


Information Total 7 Pages
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