US2076_15 Datasheet, PDF (1/8 Pages) Unisonic Technologies – DUAL USB HIGH-SIDE POWER SWITCH

UNISONIC TECHNOLOGIES CO., LTD
US2076
Preliminary
DUAL USB HIGH-SIDE POWER
SWITCH
„ DESCRIPTION
The UTC US2076 is a dual integrated high-side power switch
particularly designed for self-powered and bus-powered Universal Serial
Bus (USB) applications.
The UTC US2076 meets the requirements of the USB. The low
on-resistance of the switch satisfies USB voltage drop requirements.
Fault current is limited to typically 750mA, well below the UL 25VA
safety requirement. Flag outputs are available to indicate fault conditions
to the local USB controller. In addition, soft start can eliminate the
momentary voltage drop which is generated on the upstream port that
may occur when the switch is enabled in bus-powered applications.
This device has independent functions enable and flag, and an enable
input is compatible with both 3.3V and 5V logic.
The UTC US2076 includes protection circuits. Thermal shutdown
circuit is designed to protect the device from being damaged when
high-current loads exist. UVLO (Under-voltage lockout) is used to keep
the device off unless there is a valid input voltage present.
The UTC US2076 is use in applications, such as USB host and
self-powered hubs, bus-powered hubs, hot plug-in power supplies, and
battery-charger circuits.
„ FEATURES
* MOSFET with Low On-Resistance: 140mΩ max.@5.0V per Channel
* Continuous Load Current: 500mA (MIN.) per Channel
* Off-State Supply Current: 1µA (TYP.)
* Output can be Forced Higher than Input (Off-State)
* Current Limit up to 1.25A (MAX.)
* Input Supply Voltage: 3.0V ~ 5.5V
* On-State Supply Current: 110µA (TYP.)
* Thermal Shutdown Protection Circuit
* UVLO (Undervoltage Lockout): 2.4V (TYP.)
* Open-Drain Fault Flag
* 1ms Turn-On (Soft-Start) and Fast Turn-Off
* Compliant to USB Specifications
* Available with Active-Low / High Enable
„ ORDERING INFORMATION
Ordering Number
US2076XG-S08-R
Package
SOP-8
Packing
Tape Reel
CMOS IC
SOP-8
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
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