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LS7540 Datasheet(PDF) 5 Page - LSI Computer Systems

Part # LS7540
Description  TOUCH CONTROL CONTINUOUS DIMMER with AUTOMATIC GAIN CONTROL (AGC)
Download  5 Pages
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Manufacturer  LSI [LSI Computer Systems]
Direct Link  http://www.lsicsi.com
Logo LSI - LSI Computer Systems

LS7540 Datasheet(HTML) 5 Page - LSI Computer Systems

  LS7540 Datasheet HTML 1Page - LSI Computer Systems LS7540 Datasheet HTML 2Page - LSI Computer Systems LS7540 Datasheet HTML 3Page - LSI Computer Systems LS7540 Datasheet HTML 4Page - LSI Computer Systems LS7540 Datasheet HTML 5Page - LSI Computer Systems  
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The Figure 6 Application Schematic functions identically to that shown in Figure 5 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.
7540-060906-5
AC
MAINS
LOAD
R1
R3
R4
C1
D1
FIGURE 6. TOUCH LAMP APPLICATION SCHEMATIC
C3
C4
D2
8
7
6
5
V SS RAMP
CONT
CLOCK
SYNC V DD TOUCH
D3
R2
TOUCH
PLATE
(LAMP BODY)
C2
T1
G
MT2
MT1
Z1
R5
+
-
+V
-V
LS7540
C6
+
-
C8*
(SEE NOTE 2)
C7
R6
1
2
3
4
TRIG/
R7
#2


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