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US202

Unisonic Technologies
Part Number US202
Manufacturer Unisonic Technologies
Description POWER DISTRIBUTION SWITCHES
Published Mar 12, 2016
Detailed Description UNISONIC TECHNOLOGIES CO., LTD US202/A 100mΩ POWER DISTRIBUTION SWITCHES  DESCRIPTION The US202/A is a power distribu...
Datasheet PDF File US202 PDF File

US202
US202


Overview
UNISONIC TECHNOLOGIES CO.
, LTD US202/A 100mΩ POWER DISTRIBUTION SWITCHES  DESCRIPTION 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.
 FEATURES * 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  ORDERING INFORMATION Ordering Number Lead Free Halogen Free US202XL-AF5-R US202XG-AF5-R US202AXL-AF5-R US202AXG-AF5-R Package SOT-25 SOT-25 CMOS IC Packing Tape Reel Tape Reel www.
unisonic.
com.
tw Copyright © 2018 Unisonic Technologies Co.
, Ltd 1 of 5 QW-R502-445.
F US202/A  MARKING US202  PIN CONFIGURATION CMOS IC Current Code Blank: 1.
5A A: 2.
5A US202A 54 US2 12 3 Logic Level Enable Pin  PIN DESCRIPTION PIN NO.
1, 5 2 3 4 PIN NAME VOUT GND VIN EN DESCRIPTION Output Voltage Ground Power Input Chip Enable (Active High)  BLOCK DIAGRAM Bias Oscillator Current Limiting Charge Pump Control Thermal Detection EN UNISONIC TECHNOLOGIES CO.
, LTD www.
uni...


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