UT8803

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

6 of 6

www.unisonic.com.tw

QW-R502-094,B

TYPICAL APPLICATION CIRCUIT

1.

TRIAC CONTROL

15k

47u

560k

0.047u

33n

UT8803

1

2

4

3

5

6

8

7

1

6

1

5

1

3

1

4

1

2

1

1

9

1

0

UOU1

NII1

CDS

TCI

QTEST

TB

GND

VREF

II1

RELAY

ZCD

TRIAC

II2

VDD

NII2

UOU2

820k

15k

47k

{RES2}

4.7K

33u

100u

100p

0.01u

10u

22u

0.01u

5.1V

1M

47

PIR

1M

1M

FUSE

CDS

470u

470K

330

0.47u/250V

2.

RELAY CONTROL

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.