The Figure 5 Application Schematic functions identically to that shown in Figure 4 with one less component.

Referencing Triac T1 to the +V power supply of the IC eliminates the need to AC couple the TRIAC pulse

to the Triac Gate thereby eliminating component C5.

7541-022807-5

AC

MAINS

LOAD

R1

R4

C1

D1

FIGURE 6. PUSHBUTTON APPLICATION SCHEMATIC

C3

8

7

6

5

CLOCK SYNC

R2

C2

T1

G

MT2

MT1

Z1

R5

+

-

+V

-V

LS7541

C6

+

-

R6

1

2

3

4

SEE

NOTE 1

TRIG

S1

Using the Figure 5 schematic as an example, components R3, C4, C7, D1 and D2 are eliminated and

Brightness Level to change in the same way as a Touch does in Figure 5. C3 is 1000pf, 10V capacitor.

AC

MAINS

LOAD

R1

R3

R4

C1

D1

FIGURE 5. TOUCH LAMP APPLICATION SCHEMATIC

C3

C4

D2

8

7

6

5

CLOCK SYNC

D3

R2

TOUCH PLATE

(LAMP BODY)

C2

T1

G

MT2

MT1

Z1

R5

+

-

+V

-V

LS7541

C6

+

-

(

SEE NOTE 2 )

R6

1

2

3

4 4

SEE

NOTE 1

TRIG

C7*