UL98B

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 7

www.unisonic.com.tw



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY SECTION

Input Voltage

85

220

265

V

Output LED Current

0

100

150

mA

Chip Operating Voltage

DRAIN=100V

6

6.6

7.2

V

Chip Starting Voltage

5

5.3

5.6

V

Chip Starting Current

0.5

1

2

mA

Chip Operating Current

120

180

300

uA

Power Efficiency

η

0.88

Power Factor

0.4

0.5

0.7

CC SECTION

The Precision of Constant Current

CC

±5

%

Standby Power Consumption

0.3

W

PROTECTION SECTION

Short Circuit Protection Frequency

2

3

4

KHz

Current Detection Threshold

580

600

620

mV

Edge Blanking Time

500

ns

Turn Off Delay Time

200

ns

TIME CONTROL SECTION

Minimum Turn Off Time

2.5

us

Maximum Turn off Time

300

us

Maximum Turn-on Time

40

us

POWER MOS

SECTION

LDMOS Withstand Voltage

500

550

600

V

Conduction Resistance

RON

18

Ω

TEMPER SECTION

Over Temper Adjust

140

°C

Over Temper Protect

160

°C

Over Temper Hysteresis

20

°C

Notes: 1. The parameters are not 100% tested in production.

2. The minimum, maximum range of standard specification by the test to ensure, typical values by design,

test or analysis to ensure.