US211/A/B/C

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 9

www.unisonic.com.tw

QW-R502-A67.C



PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

6.5

V

+2 ~ +5.5 (Note 2)

V

Input/Output Pins

VCTL

-0.3~ +6.5

V

0 ~ +5.5 (Note 2)

V

V FLG

FLG

V

6.5

V

Junction Temperature

150

°C

-20 ~ +100 (Note 2)

°C

Storage Temperature

-65 ~ +150

°C

Note: 1. 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.

2. The device is not guaranteed to function when it’s beyond its operating conditions.



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

260

°C/W

Junction to Case

81

°C/W



ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

ENABLE INPUT

CTL Threshold

Low

0.8

V

High

2.0

V

CTL Input Current

0.01

µA

UNDER VOLTAGE LOCK

Under-Voltage Lockout

1.0

2.1

V

Under-Voltage Hysteresis

0.1

V

SUPPLY CURRENT

Supply Current

25

45

µA

0.1

1

µA

Output Leakage Current

0.5

10

µA

CURRENT LIMIT

Current Limit

US211

0.6

0.8

1.1

A

US211A

1.1

1.5

1.9

A

US211B

1.3

1.7

2.1

A

US211C

1.5

2.0

2.4

A

Short Circuit Fold-Back Current

thermal shutdown

US211

0.8

A

US211A

1.0

A

US211B

1.0

A

US211C

1.3

A

POWER SWITCH

Switch ON Resistance

US211

80

110 mΩ

US211A/B/C

80

110 mΩ

Output Turn-ON Rise Time

400

µs

OVER CURRENT FLAG

FLAG OFF Current

(OFF)

FLG

I

FLG

V=5V

0.01

1

µA

FLAG Output Resistance

FLG

R

20

400

Ω

FLAG Delay Time

From fault condition to FLG assertion

2

10

15

ms

THERMAL SHUTDOWN

Thermal Shutdown Protection

130

°C

Thermal Shutdown Hysteresis

20

°C