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US2175 Schematic ( PDF Datasheet ) - Unisonic Technologies

Teilenummer US2175
Beschreibung DUAL USB HIGH-SIDE POWER SWITCH
Hersteller Unisonic Technologies
Logo Unisonic Technologies Logo 




Gesamt 10 Seiten
US2175 Datasheet, Funktion
UNISONIC TECHNOLOGIES CO., LTD
US2175
DUAL USB HIGH-SIDE POWER
SWITCH
CMOS IC
„ DESCRIPTION
The US2175 is a high-side power switch with two channels. It
particularly designed for the Universal Serial Bus (USB) including
self-powered and bus-powered types. The RDS(ON) of the MOSFET
switch is as low as 110m.
The US2175 incorporates protective functions, such as
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.
The US2175 can be applied in hot plug in power supplies and
battery charger circuits as well.
„ FEATURES
* Open-Drain Fault Flag.
* High-Side MOSFET Switch with 5V Input Voltage
* 110mRDS(ON) Meets USB Voltage Drop Requirements for Maximum Transmission Wire Length
* 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
SOP-8
„ ORDERING INFORMATION
Ordering Number
US2175XG-S08-R
Package
SOP-8
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 10
QW-R502-403.B
Free Datasheet http://www.Datasheet4U.com






US2175 Datasheet, Funktion
US2175
„ TYPICAL APPLICATION CIRCUIT
4.50V ~ 5.25V
Upstream VBUS
100mA max
VBUS
D+
D-
GND
10k
10k
LR1116B
IN OUT
GND
1μF 1μF
USB Controller
VIN ON/OFF
Overcurrent
Overcurrent
ON
GND
DATA
CMOS IC
VCC
5.0V
33μF
Ferrite
Bead
VBUS
US2175
CTL(1) OUT(1)
0.01μF
+
33μF
FLG(1)
FLG(2)
IN
GND
0.1μF
CTL(2) OUT(2)
0.01μF
+
33μF
D+
USB
D- Port1
GND
VBUS
D+
USB
D- Port2
GND
DATA
(Two Pair)
to USB Controller
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 10
QW-R502-403.B
Free Datasheet http://www.Datasheet4U.com

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