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US2026A

DUAL-CHANNEL USB POWER SWITCH AND OVER-CURRENT PROTECTION

Unisonic Technologies 

US2026A

CMOS IC

„ ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

VIN

-0.3 ~ +6

V

Output Voltage

VOUT

-0.3 ~ +6

V

Voltage at All Other Pins

VOTHER

-0.3 ~ +6

V

Total Power Dissipation

Junction Temperature

Operating Temperature

Storage Temperature

PD

300

mW

TJ

+150

℃

TOPR

-40 ~ +85

℃

TSTG

-55 ~ +150

℃

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.

„ RECOMMENDED OPERATION CONDITIONS

PARAMETER

Supply Voltage Range

Operating Temperature

SYMBOL

VIN

TOPR

RATINGS

+2.7 ~ +5.5

0 ~ +70

UNIT

V

℃

„ ELECTRICAL CHARACTERISTICS (TJ = 25°C, VIN = 5.0V, VEN = 0V, unless otherwise specified.)

PARAMETER

SYMBOL

TEST CONDITIONS

DC CHARACTERISTIC

EN Input Logic

High

Low

VIH (Note 1)

VIL

(Note 1)

Under-Voltage Lockout Threshold

VUVLO

VIN=increasing

Hysteresis voltage

OUT Pins Continuous Output

Current

IOUT Each Output

Over-Current Threshold

THDOC

OUT Pins Output Leakage Current ILEAK VEN = VIN

EN Leakage Current

IEN

VEN = 0V or VEN = VIN

Supply Current

OFF

ON

IO(OFF)

IO(ON)

Switch-Off

Switch-On

Error FLAG Leakage Current

IFH

VFLAG = 5V

On Resistance

RON

VIN = 5V, IOUT = 500mA, each switch

VIN = 2.7V, IOUT = 500mA, each switch

FLAG Output Voltage

IFO = 10 mA, VIN = 5.0V

RFO IFO = 10 mA, VIN = 3.3V

IFO = 10 mA, VIN = 2.7V

Over-Temperature Shutdown

Threshold

THDOT

TJ Increasing, with no shorted output

TJ Increasing, with shorted output (s)

TJ Decreasing (Note 2)

AC CHARACTERISTIC

Over Current Flag Delay

tOC

RL = 0

OUT Rise Time

tR

RL = 10Ω

OUT Fall Time

tF

RL = 10Ω

Turn on Delay, EN to OUT

tON

RL = 10Ω

Turn off Delay, EN to OUT

tOFF RL = 10Ω

Note: 1. OFF is EN ≥ 2.4V and ON is EN ≤ 0.8V.

2. Thermal Shutdown will protect the device from permanent damage.

MIN TYP MAX UNIT

2.4 1.7

V

1.6 0.8 V

2.3 2.7 V

100

mV

0.5

A

1.5 2.2 A

0.01 10 µA

-0.5

0.5 µA

1 5 µA

110 µA

0.01 1 µA

105 145 mΩ

135 180

10 20

11 30 Ω

12 40

155

145

°C

135

1

ms

160

µs

5

µs

240

µs

5

µs

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

4 of 11

QW-R502-086.B

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