PROTECTION. US3026A Datasheet

US3026A Datasheet PDF

Part US3026A
Description DUAL-CHANNEL USB POWER SWITCH AND OVER-CURRENT PROTECTION
Feature www.DataSheet4U.com UNISONIC TECHNOLOGIES CO., LTD US3026A DUAL-CHANNEL USB POWER SWITCH AND OVER-C.
Manufacture UTC
Datasheet
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www.DataSheet4U.com UNISONIC TECHNOLOGIES CO., LTD US3026A US3026A Datasheet





US3026A
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UNISONIC TECHNOLOGIES CO., LTD
US3026A
DUAL-CHANNEL USB POWER
SWITCH AND OVER-CURRENT
PROTECTION
CMOS IC
DESCRIPTION
The UTC US3026A is a standard dual channels power switch with
independent over-current protection fault flag functions, optimized for
bus-powered Universal Serial Bus (USB) and self-powered
applications, including Notebook and desktop PC’s that supply
power to more than one port.
The UTC US3026A also offers thermal shutdown protection that
reduces current consumption in fault modes for each switch and the
entire device. With a 1ms delay on the fault FLAG output prevents
erroneous over current reporting caused by in-rush currents during
hot-plug events.
In addition, the UTC US3026A employs soft-start circuitry that
minimizes in-rush current in applications where highly capacitive
loads are employed.
SOP-8
*Pb-free plating product number: US3026AL
FEATURES
* Two P-channel power MOSFET control switch
* 110µA Max operating current
* 5µA Max standby current
* 145 mMax switch resistance
* 2.7V ~ 5.5V input voltage range
* 500mA minimum continuous load current
* Smooth turn-on eliminates in-rush induced voltage drop
* 1 ms fault flag delay filters Hot-Plug events
* Over-current protection
* Under-voltage lockout circuit
* Thermal shutdown protection
* Flag indicates fault conditions
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
US3026A-S08-R
US3026AL-S08-R
US3026A-S08-T
US3026AL-S08-T
Package
SOP-8
SOP-8
Packing
Tape Reel
Tube
US3026AL-S08-R
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) R: Tape Reel, T: Tube
(2) S08: SOP-8
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
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QW-R502-086,A



US3026A
US3026A
PIN CONFIGURATIONS
EN1
FLAG1
FLAG 2
EN2
1
2
3
4
UTC
US3026 A
8 OUT1
7 IN
6 GND
5 OUT2
CMOS IC
PIN DESCRIPTION
PIN NO
1
2
3
4
5
6
7
8
PIN NAME
EN1
FLAG1
FLAG2
EN2
OUT2
GND
IN
OUT1
DESCRIPTION
Switch1 Enable input: Logic-compatible enables inputs
Fault Detection Flag 1 (OUTPUT): Active-low. N-ch open-drain. Indicates
over-current, thermal shutdown, or UVLO conditions
Fault Detection Flag 2 (OUTPUT): Active-low. N-ch open-drain. Indicates
over-current, thermal shutdown, or UVLO conditions
Switch2 Enable input: Logic-compatible enables inputs
Switch2 OUTPUT: Drain of MOSFET for Output. Usually, connected to Load
Ground
Power input: Source of MOSFET for Output. Power Supply to Internal Circuitry of IC
Switch1 OUTPUT: Drain of MOSFET for Output. Usually, connected to Load
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 11
QW-R502-086,A




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