US2076B Datasheet, PDF (1/8 Pages) Unisonic Technologies – DUAL USB HIGH-SIDE POWER SWITCHDUAL USB HIGH-SIDE POWER SWITCH

UNISONIC TECHNOLOGIES CO., LTD
US2076B
Preliminary
DUAL USB HIGH-SIDE POWER
SWITCH
„ DESCRIPTION
The UTC U2076B is a dual integrated high-side power switch
particularly designed for self-powered and bus-powered Universal Serial
Bus (USB) applications.
The UTC U2076B 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 U2076B 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 U2076B is used in application 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-High Enable
„ ORDERING INFORMATION
Ordering Number
US2076BG-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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