UPSRB03

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

3 of 7

www.unisonic.com.tw

QW-R129-020.a



ABSOLU T E M AX I M U M RAT I N G

PARAMETER

SYMBOL

RATINGS

UNIT

-0.3~30

V

BASE Voltage

-0.3~7

V

CS Input Voltage

-0.3~7

V

FB Input Voltage

-0.3~7

V

Junction Temperature

-40 ~ +150

°C

Storage Temperature

-55 ~ +150

°C

Lead Temperature (Soldering, 10 secs)

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

Start up Current

3

20

μA

Static Current

0.8

1.5

mA

Turn-off Threshold Voltage

5.5

6.5

7.5

V

Turn-on Threshold Voltage

16.5

18

19.5

V

25

27.5

30

V

28

30

32

V

Current Sense Input Section

LEB Time

0.5

μS

Over Current Threshold

490

500

510

mV

OCP Propagation Delay

From OCP Comparator to

Base Drive

100

nS

FB Input Section

Reference Voltage for Feedback

Threshold

1.98

2.00

2.02

V

Demagnetization comparator threshold

25

mV

Minimum Pause

2.0

μS

Maximum Pause

5

mS

Output Short Circuit Threshold

0.6

V

Output Short Circuit Debounce Time

13

mS

Ratio between switching period in CC

mode and demagnetization time

2

Max Cable compensation current

Icable

60

μA

BASE Drive Section

Base Sourcing Maximum Current

20

30

40

mA

Base Sourcing Current After Pre-off

0.5

1

1.5

mA

Base Drive Low Side On Resistor

1

Ω