P34563

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 4

www.unisonic.com.tw

QW-R103-074.b



PARAMETER

SYMBOL

RATINGS

UNIT

VCC Pin Voltage

V

Feedback Pin Voltage

V

EN/CT, OVP Pin Voltage

V

SENSE1,SENSE2 Pin Voltage

V

Switch Pin Voltage

V

Power Dissipation

W

Operating Supply Voltage

+8~+40

V

Output Current

0~3

A

Operating Temperature

-20~+125

°C

Storage Temperature

-40~+165

°C

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.



THERMAL CHARACTERISTICS

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

143

°C/W

Junction to Case

15

°C/W



ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

FB

1.08

1.10

1.12

V

Under Voltage Lockout

Falling

6

V

UVLO Hysteresis

0.8

V

OVP Detect Voltage

FB Floating

1.250

V

Line Regulation

∆

　

0.5

1

%

Load Regulation

∆

　

10

mV

Quiescent Current

3

7

mA

Oscillator Frequency

80

100

120

KHz

Max. Duty Cycle (ON)

100

%

Min. Duty Cycle (OFF)

DC

0

%

110

170

mΩ

Sense Voltage

150

mV

Sense Voltage Hysteresis

45

mV

Shutdown Mode

0.3

V

EN/CT Pin Logic Input Threshold

Voltage

0.5

1.5

V

EN/CT Pin Current

Charge Current

-32

µA

EN/CT Pin Current

Discharge Current

1.5

µA

Thermal Shutdown Temp

160

°C

Thermal Shutdown Hysteresis

40

°C