US203 データシートの表示（PDF） - Unisonic Technologies

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US203

HIGH-SIDE POWER SWITCHES WITH FLAG

Unisonic Technologies 

US203

CMOS IC

 ABSOLUTE MAXIMUM RATING (TA = 25°C, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

VIN

6.5

V

Enable Input Voltage

VEN

-0.3 ~ +6.5

V

Flag Voltage

VFLG

6.5

V

Power Dissipation (TA = 25°C)

PD

0.4

W

Junction Temperature

TJ

150

°C

Storage Temperature

TSTG

-65~150

°C

Notes: 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.

 THERMAL DATA

PARAMETER

SYMBOL

Junction to Ambient

SOT-25

SOP-8

θJA

 RECOMMENDED OPERATING CONDITIONS

RATINGS

250

190

UNIT

°C/W

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Input Voltage

VIN

3.5 ~ 5.5

V

Enable Input Voltage

VI(EN)

0 ~ 5.5

V

Junction Temperature

TJ

-40 ~ +125

°C

Ambient Operating Temperature

TOPR

-40 ~ +85

°C

 ELECTRICAL CHARACTERISTICS (VIN=5V, CIN=COUT=1μF, TA=25°C, unless otherwise specified)

PARAMETER

Switch On Resistance

(US203A, US203B)

Switch On Resistance

(US203C, US203D)

Supply Current

EN Threshold Voltage

EN Input Current

Output Leakage Current

Output Turn-On Rise Time

Current Limit

Short Circuit Fold-Back

Current

FLAG Output Resistance

FLAG Off Current

SYMBOL

TEST CONDITIONS

SOT-25

SOP-8

SOT-25

SOP-8

RDS(ON)

IOUT= 1A, VIN= 5V

IOUT= 0.5A, VIN= 5V

ISW_ON switch on, RLOAD Open

ISW_OFF switch off, RLOAD Open

Logic-Low

VIL VIN = 3.5V ~ 5.5V

Logic-High

VIH

IEN

IO(LEAK)

VIN = 3.5V ~ 5.5V

VEN/EN = 0V ~ 5.5V

VEN=0V, RLOAD= 0Ω

US203Ax

TON(RISE) 10% to 90% of VOUT rising

US203Bx

US203Cx

ILIMIT

Current Ramp (< 0.1A/ms) on

VOUT

US203Dx

US203Ax

US203Bx

US203Cx

ISC(FB)

VOUT = 0V, measured prior to

thermal shutdown

US203Dx

R FLG ISINK= 1mA

I FLG _OFF V FLG = 5V

MIN TYP MAX UNIT

80

90

100

110

mΩ

80

90

100

110

mΩ

25

0.1

45

1

μA

0.8 V

2.0

V

0.01

μA

0.5 10 μA

400

μs

2.1 2.5 3.2 A

1.6 2.0 2.5 A

1.1 1.5 1.8 A

0.6 0.8 1.1 A

1

A

1

A

1

A

1

A

20 400 Ω

0.01 1 μA

FLAG Delay Time

tD

From fault condition to FLG

assertion

Shutdown Pull-Low Resistance

Under-Voltage Lockout

RDS

VUVLO

VEN=0V, VEN

VIN increasing

Under-Voltage Hysteresis

Thermal Shutdown Protection

∆VUVLO VIN decreasing

TSD

Thermal Shutdown Hysteresis

∆TSD

Note: The device is not guaranteed to function outside its operating conditions.

5 12 20 ms

75 150 Ω

1.3 1.7

V

0.1

V

130

°C

20

°C

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

3 of 7

QW-R502-435.K

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