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Número de pieza US3276
Descripción DUAL USB HIGH-SIDE POWER SWITCH
Fabricantes Unisonic Technologies 
Logotipo Unisonic Technologies Logotipo

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US3276 Hoja de datos, Descripción, Manual
UNISONIC TECHNOLOGIES CO., LTD
US3076-US3376
Preliminary
DUAL USB HIGH-SIDE POWER
SWITCH
CMOS IC
DESCRIPTION
The UTC US3076-US3376 is an integrated dual channel for USB
high-side power switch. It particularly designed for self-powered and
bus-powered Universal Serial Bus (USB) applications.
The RDS(ON) of the MOSFET switch is as low as 87m. OC which is
open-drain output report over-current or over-temperature event, has
deglitch timeout period typically 9ms.
The UTC US3076-US3376 incorporates some protection circuits,
such as current limiting circuit with foldback function, thermal shutdown
circuit which is designed to prevent catastrophic switch failure due to
increasing power dissipation when continuous heavy loads or short
circuit occurs. A built-in charge pump is used to drive the N-channel
MOSFET that is free of parasitic body diode to eliminate any reversed
current flow across the switch when it is powered off.
The UTC US3076-US3376 is applied in high-side power protection
switch, USB power management, USB host and self-powered bubs,
USB bus-powered hubs, hot plug-in power supplies, and
battery-charger circuits.
FEATURES
* Operating on the Range of 3V to 5.5V
* High-Side MOSFET with 87mRDS(ON)
* Quiescent Supply Current: 65μA
* Available with 4 Versions of Current Limits with Foldback
* Rise Time: 400μS (TYP)
* UVLO (Under Voltage Lockout)
* Shutdown Supply Current: 1μA (MAX)
* Reverse Current is not Generated when in Power Off State
* Deglitched Open-Drain Over-Current Flag Output ( OC )
ORDERING INFORMATION
Ordering Number
US3X76XG-S08-R
US3X76XG-SM1-R
Package
SOP-8
MSOP-8
Packing
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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US3276 pdf
US3076-US3376
TEST CIRCUIT
Preliminary
CMOS IC
VOUT
Device Under Test
OUT
IOUT
COUT
RL CL
IL
TIMING DIAGRAMS
Current Probe
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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