US2351

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R129-011.a



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Drain Voltage (Off State)

-0.3~BVdss

V

-0.3~40

V

10

mA

COMP Voltage

-0.3~7

V

CS Input Voltage

-0.3~7

V

Operating Junction Temperature

-40~150

°C

Storage Temperature

-55~150

°C

Lead Temperature (Soldering, 10secs)

260

°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.



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX

UNIT

Standby Current

5

20

μA

Operation Current

Operation Supply Current CS=0V,

1.5

2.5

mA

VDD Under Voltage Lockout

Enter

UVLO(ON)

7

7.8

8.6

V

VDD Under Voltage Lockout

Exit

UVLO (OFF)

12.5

13.5

14.5

V

Over Voltage Protection

Threshold

OVP

26

27.5

29

V

be Regulated to 12V

than 2.5V

11

12

13

V

Current Sense Input Section

LEB Time

TLEB

200

ns

Over Current Threshold

910

940

970

mV

OCP Propagation Delay

110

ns

Input Impedance

50

KΩ

Frequency Section

IC Maximum Frequency

Freq_Max

54

60

66

KHz

Frequency Shuffling Range

△

f/Freq

+/-6

%

Error Amplifier Section

DC Gain of EA

Gain

60

dB

Max. Cable Compensation

Current

4

μA

Power MOSFET Section

MOSFET Drain-Source

Breakdown Voltage

600

V

On Resistance

15

Ω