UPSR104

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 8

www.unisonic.com.tw

QW-R103-113.a



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

V

10

mA

COMP Voltage

-0.3 ~ 7

V

CS Input Voltage

-0.3 ~ 7

V

INV Input Voltage

-0.3 ~ 7

V

Max Operating Junction Temperature

150

°C

Min/Max 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

uA

Operation Current

Operation supply current,

INV=2V, CS=0V, VDD=18V

1.6

3

mA

UVLO_(ON)

8.0

9.0

10.0

V

UVLO_(OFF)

13.5

14.8

16.0

V

29

V

Over Voltage Protection Threshold

OVP

26

27.5

29

V

Current Sense Input Section

LEB Time

TLEB

600

ns

Over Current Threshold

880

910

940

mV

OCP Propagation delay

110

ns

Soft Start Time

17

ms

Frequency Section

IC Maximum Frequency

55

60

65

KHz

System Nominal Switch Frequency

50

KHz

INV=0V, Comp=5V

14

KHz

∆f/Freq

Frequency

shuffling range

+/-6

%

Error Amplifier Section

Reference Voltage for EA

1.97

2

2.03

V

DC Gain of EA

Gain

60

dB

Max. Cable Compensation Current

INV=2V, Comp=0V

37

uA

Gate Drive Output Section

Output Low Level

1

V

Output High Level

8

V

Output Clamp Voltage Level

16

V

Output Rising Time

T_r

650

ns

Output Falling Time

T_f

40

ns

On chip OTP Section

Over Temperature protection

OTP

160

℃

frequency of 60Khz nominal occurs at maximum output power or the transition point from CV to CC.