UNISONIC TECHNOLOGIES CO., LTD

US3076-US3376

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 8

Copyright © 2011 Unisonic Technologies Co., Ltd

QW-R502-424.d

DUAL USB HIGH-SIDE POWER

SWITCH

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.

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 2.7V to 5.5V

* 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

Lead Free

Halogen Free

Package

Packing

US3X76XL-S08-R

US3X76XG-S08-R

SOP-8

Tape Reel

US3X76XL-S08-T

US3X76XG-S08-T

SOP-8

Tube

US3X76XL-SM1-R

US3X76XG-SM1-R

MSOP-8

Tape Reel

US3X76XL-SM1-T

US3X76XG-SM1-T

MSOP-8

Tube