UC1103

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 9

www.unisonic.com.tw

QW-R502-961.d



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

HV Pin Input Voltage

500

V

Supply Voltage

30

V

Voltage at VS, CS, COMR to GND

-0.3~7.0

V

660

mW

Operating Ambient Temperature

-40~+105

°C

Operating Junction Temperature

-40~+150

°C

Storage Temperature Range

-55~+150

°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 RESISTANCES CHARACTERISTICS

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

150

°C/W

Junction to Case

39

°C/W



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

SUPPLY SECTION

Turn-on Threshold Voltage

15

16

17

V

Turn-off Threshold Voltage

8

9

10

V

28

V

Operating Current

1.6

2

mA

Green-Mode Operating Current

1.5

mA

HV START-UP SECTION

Minimum Startup Voltage on HV Pin

50

V

Supply Current Drawn from Pin HV

0.6

mA

Leakage Current after Startup

0.5

μA

OSCILLATOR SECTION

Maximum Frequency

47

50

53

kHz

Minimum Frequency at CCM

13

kHz

Minimum Frequency at No-load

300

Hz

Frequency Hopping Range

△

f/freq

±1.5

±2.0

±2.5

kHz

Frequency Hopping Period

3

ms

1

2

%

VOLTAGE SENSE SECTION

Reference Voltage for EA

2.475 2.525 2.625

V

Reference Voltage for CCM

0.5

V

Max. Cable Compensation Current

25

uA

CURRENT SSENSE SECTION

Current Sense Threshold Voltage

800

mV

OCP Propagation Delay

90

200

nS

Leading Edge Blank Time

600

nS

Soft Start Time

10

mS