U210B1

TELEFUNKEN Semiconductors

Rev. A1, 28-May-96

8 (12)

04

8

12

0

10

20

30

40

50

16

95 10315

Mains Supply

Figure 12.

010

20

30

40

95 10316

Mains Supply

0

1

2

3

4

6

5

Figure 13.

03

6

9

12

0

1

2

3

4

6

15

95 10317

Mains Supply

5

Figure 14.

Design Calculations for Mains Supply

The following equations can be used for the evaluation of

R

1max

+ 0.85

V

R

1min

+

V

2I

Smax

P

(R1max)

+

(V

2

2R

1

where:

= Mains voltage, 230 V

X

= Supply voltage on Pin 3

= Total DC current requirement of the circuit

= Average current requirement of the triggering

pulses

= Current requirement of other peripheral

components

to 14.