8561

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

6 of 6

www.unisonic.com.tw

QW-R502-444.a

TYPICAL APPLICATION CIRCUIT

(

80W, Wide-range Mains)

FUSE 4A/250V

Vac

(85V ~ 265V)

+

BRIDGE

4×1N4077

C1

400V

R10

10K

C2

22μF

25V

C7

10nF

240K

R3(*)

D3 1N4150

D2

1N5248B

12nF

R2

100

C6

R1

68K

T

1μF

R5

10

R6(*)

0.41

1W

R8

6.34K

1%

MOS

STP8NA50

C5

47μF

450V

+

R7(*)

998K

D1 BYT13-600

8

3

5

21

7

4

6

UTC 8561

TRANSFORMER

T: core THOMSON-CSF B1ET2910A(ETD29×16×10mm)OR EQUIVALENT (OREGA 473201A8)

primary 90T of Litz wire 10×0.2mm

secondary 7T of #27 AWG (0.15mm)

gap 1.25mm for a total primary inductance of 0.8mH

-

NTC

R9(*)

1.24M

-

1μF

C3

R3 = 2×120KΩ

R6 = 0.82Ω /2

R7 = 2×499KΩ, 1%

R9 = 2×620KΩ

(*)

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.