US3026A-S08-R UTC [Unisonic Technologies], US3026A-S08-R Datasheet

no-image

US3026A-S08-R

Manufacturer Part Number
US3026A-S08-R
Description
DUAL-CHANNEL USB POWER SWITCH AND OVER-CURRENT PROTECTION
Manufacturer
UTC [Unisonic Technologies]
Datasheet
US3026A
DUAL-CHANNEL USB POWER
SWITCH AND OVER-CURRENT
PROTECTION
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.
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.
minimizes in-rush current in applications where highly capacitive
loads are employed.
* Two P-channel power MOSFET control switch
* 110µA Max operating current
* 5µA Max standby current
* 145 mΩ Max 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
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
In addition, the UTC US3026A employs soft-start circuitry that
The UTC US3026A is a standard dual channels power switch with
The UTC US3026A also offers thermal shutdown protection that
US3026AL-S08-R
DESCRIPTION
FEATURES
ORDERING INFORMATION
US3026A-S08-R
US3026A-S08-T
Normal
UNISONIC TECHNOLOGIES CO., LTD
Order Number
(1)Packing Type
(2)Package Type
(3)Lead Plating
US3026AL-S08-R
Lead Free Plating
US3026AL-S08-T
(1) R: Tape Reel, T: Tube
(2) S08: SOP-8
(3) L: Lead Free Plating, Blank: Pb/Sn
Package
SOP-8
SOP-8
*Pb-free plating product number: US3026AL
Tape Reel
Packing
Tube
SOP-8
CMOS IC
QW-R502-086,A
1 of 11

Related parts for US3026A-S08-R

US3026A-S08-R Summary of contents

Page 1

... Hot-Plug events * Over-current protection * Under-voltage lockout circuit * Thermal shutdown protection * Flag indicates fault conditions ORDERING INFORMATION Order Number Normal US3026A-S08-R US3026A-S08-T US3026AL-S08-R (1)Packing Type (2)Package Type (3)Lead Plating www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd Package ...

Page 2

... Power input: Source of MOSFET for Output. Power Supply to Internal Circuitry OUT1 Switch1 OUTPUT: Drain of MOSFET for Output. Usually, connected to Load UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com. EN1 2 7 FLAG1 UTC US3026A 3 6 FLAG EN2 DESCRIPTION CMOS IC OUT1 IN GND OUT2 QW-R502-086,A ...

Page 3

... US3026A BLOCK DIAGRAM EN1 EN Control Thermal Shutdown GND EN2 EN Control UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw FLAG Logic GATE Control Current Limit Current Limit UVLO GATE Control FLAG Logic CMOS IC FLAG1 OUT1 IN OUT2 FLAG2 QW-R502-086,A ...

Page 4

... US3026A ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Output Voltage Voltage at All Other Pins Total Power Dissipation T JMAX Junction Temperature Operating Temperature Storage Temperature Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ...

Page 5

... US3026A TEST CIRCUIT 1M 1M 10K K1 K2 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 10K US3026A FLAG1 IN FLAG2 OUT1 EN1 OUT2 EN2 GND C L2 CMOS OUT1 OUT2 QW-R502-086,A ...

Page 6

... US3026A TIMING DIAGRAM 90% V OUT V EN Current Limit I OUT V OUT V FLAG UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 90 OFF 90% V OUT 10 OUT Short Circuit V FLAG Operating temperature rising T J CMOS RISE FALL 90% 90% 10% Standby Status Operating temperature falling ...

Page 7

... Hysteresis ensures that both switches turned off by thermal shutdown will not be turned on again until the die temperature is reduced to 135 . When the thermal shutd the output pins are in the OFF status. However, the UTC US3026A enters the standby status when EN pins are all inactive. ...

Page 8

... US3026A TYPICAL APPLICATION CIRCUIT 5V 1µF 10kΩ USB Controller Over-Current ON/OFF Over-Current ON/OFF D+ D- UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw US3026A IN OUT1 10kΩ FLAG1 EN1 FLAG2 OUT2 EN2 GND DATA CMOS IC USB Port V BUS D+ 150µF D- GND DATA USB Port V BUS D+ 150µ ...

Page 9

... US3026A TYPICAL CHARACTERISTICS Supply Current vs. Input Voltage 140 120 100 2.5 3.0 3.5 4.0 4.5 Input Voltage (V) FLAG On -Resistance vs. Input Voltage FO1 2.5 3.0 3.5 4.0 4.5 Input Voltage (V) Over-Current Limit vs. Input Voltage 2.1 1.8 1.5 1.2 0.9 0.6 0.3 0 2.5 3.0 3.5 4.0 4.5 Input Voltage (V) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com. 25℃ 5.0V, unless otherwise specified) ...

Page 10

... US3026A TYPICAL CHARACTERISTICS(Cont.) Turn-On Response ( OUT V IN (2V/Div) V OUT (2V/Div) (200µs/Div) Turn-On Response ( OUT V EN (2V/Div) V OUT (2V/Div) (200µs/Div) Over-Current Response V =5V, C =1µ =1µF OUT V EN (5V/Div) V OUT (5V/Div) V FLAG (5V/Div) (500µ ...

Page 11

... US3026A UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury ...

Related keywords