US2175 Unisonic Technologies, US2175 Datasheet

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US2175

Manufacturer Part Number
US2175
Description
Dual Usb High-side Power Switch
Manufacturer
Unisonic Technologies
Datasheet
US2175
DUAL USB HIGH-SIDE POWER
SWITCH
particularly designed for the Universal Serial Bus (USB) including
self-powered and bus-powered types. The R
switch is as low as 110mΩ.
overcurrent protection, thermal shutdown and UVLO (UnderVoltage
Lockout) protection circuits. The thermal shutdown function provides
individual control for each switch. An open-drain fault flag playing a
role as the output of an N-channel is also included. Once any error
occurs the fault flag will be in active.
battery charger circuits as well.
* Open-Drain Fault Flag.
* High-Side MOSFET Switch with 5V Input Voltage
* 110mΩ R
* Load Current: 500mA
* Output Can be Forced Higher Than Input (Off-State)
* On-State Supply Current: 65μA (TYP.)
* Off-State Supply Current:.1μA (TYP.)
* Current-Limit / Short Circuit Protection and Thermal Shutdown Protection Under Overcurrent Condition
* UVLO Makes the Switch OFF at Start UP
* With Slow Turn ON and Fast Turn OFF
* Enable Active-Low or Active-High
* Halogen Free
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
The US2175 is a high-side power switch with two channels. It
The US2175 incorporates protective functions, such as
The US2175 can be applied in hot plug in power supplies and
DESCRIPTION
FEATURES
ORDERING INFORMATION
US2175XG-S08-R
Ordering Number
DS(ON)
Meets USB Voltage Drop Requirements for Maximum Transmission Wire Length
UNISONIC TECHNOLOGIES CO., LTD
Package
SOP-8
DS(ON)
of the MOSFET
Tape Reel
Packing
CMOS IC
QW-R502-403.B
1 of 10
SOP-8

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US2175 Summary of contents

Page 1

... An open-drain fault flag playing a role as the output of an N-channel is also included. Once any error occurs the fault flag will be in active. The US2175 can be applied in hot plug in power supplies and battery charger circuits as well. FEATURES * Open-Drain Fault Flag. ...

Page 2

... US2175 PIN CONFIGURATION CTL(1) FLG(1) FLG(2) CTL(2) PIN DESCRIPTION PIN NO. PIN NAME 1 CTL(1) Switch A Control Input: Logic-Compatible, Active-Low or Active-High. TTL input Fault Detection Flag (1) (OUTPUT): Active-Low. N-ch Open-Drain. Indicates 2 FLG(1) Over-Current, Thermal Shutdown. Fault Detection Flag (2) (OUTPUT): Active-Low. N-ch Open-Drain. Indicates 3 FLG(2) Over-Current, Thermal Shutdown. ...

Page 3

... US2175 BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw CMOS QW-R502-403.B ...

Page 4

... US2175 ABSOLUTE MAXIMUM RATING PARAMETER Supply Voltage Control Input Voltage Fault Flag Voltage Power Dissipation (Ta = 25°C) Junction Temperature Ambient Operating Temperature Storage Temperature Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ...

Page 5

... US2175 TEST CIRCUITS R ( FLG CTL OUT V CE GND V (3) RDS(ON CTL FLG V CE GND (5) Note: Above test circuits reflected the graphs shown on “Typical Characteristics” are as follows: (1) On-State Supply Current vs. Input Voltage & Temperature, Off-State Supply Current vs. Input Voltage & Temperature (2) Flag Trigger & ...

Page 6

... TYPICAL APPLICATION CIRCUIT 4.50V ~ 5.25V Upstream V BUS 100mA max LR1116B V BUS IN OUT D+ D- GND 1μF 1μF GND DATA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 10k 10k USB Controller US2175 V CTL(1) OUT(1) ON/OFF IN Overcurrent FLG(1) Overcurrent FLG(2) GND CTL(2) ON OUT(2) GND CMOS 5.0V Ferrite Bead 33μF ...

Page 7

... US2175 APPLICATION INFORMATION Fault Flag The fault flag mainly protects the system from damage caused by such status as thermal shutdown, overcurrent. Current Limit The current limit function prevents both excessive in-rush current caused by the plug-in events and the short-circuit status for MOSFET switches. The current limit threshold is fixed internally, allowing a 1A minimum current to flow through the MOSFET switches ...

Page 8

... US2175 TYPICAL CHARACTERISTICS Off-State Supply Current vs. Input Voltage 0.05 0.04 0.03 0.02 0. Input Voltage, V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 (V) DD CMOS IC Off-State Supply Current vs. Temperature -40 - 100 120 Temperature (℃ QW-R502-403.B ...

Page 9

... US2175 TYPICAL CHARACTERISTICS (Cont.) Flag Trigger & Release Response R =0ΩC =100μF L OUT Thermal Shutdown Response C =100μF OUT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw CMOS IC Inrush Current at Start-up R =10ΩC =100μF L OUT Turn off Response R =10Ω QW-R502-403.B ...

Page 10

... US2175 TYPICAL CHARACTERISTICS (Cont.) Turn on Response R =10Ω L UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein ...

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