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LS7338 データシート(PDF) 4 Page - LSI Computer Systems

部品番号 LS7338
部品情報  DELAYED-OFF LIGHT SWITCH WITH PROGRAMMABLE ON-TIMER
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メーカー  LSI [LSI Computer Systems]
ホームページ  http://www.lsicsi.com
Logo LSI - LSI Computer Systems

LS7338 データシート(HTML) 4 Page - LSI Computer Systems

  LS7338 Datasheet HTML 1Page - LSI Computer Systems LS7338 Datasheet HTML 2Page - LSI Computer Systems LS7338 Datasheet HTML 3Page - LSI Computer Systems LS7338 Datasheet HTML 4Page - LSI Computer Systems LS7338 Datasheet HTML 5Page - LSI Computer Systems  
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P
AC
MAINS
N
LOAD
C1
T1
L1
C2
R1
R2
A
B
R6
R9
C3
D1
5
6
7
8
4
3
2
1
R5
C3
C4
OUT
V DD SLV SENSE
V SS OSC
CAP SYNC
+
LS7338
R4
R3
SEE NOTE 1
FIGURE 5. A TYPICAL LIGHT SWITCH APPLICATION
G
MT2
MT1
Z1
-
ELECTRONIC
EXTENSION
(Figure 6)
EXTN
P
C7
SEE NOTE
3
SEE NOTE 2
R10
SENSOR
PLATE
R8
C6
R7
-
+
NOTES:
1. Use Connection A when Neutral is not available. Use Connection B when Neutral is available.
2. C7 is used only with Electronic Extension. R10 is used only with Mechanical Switch.
3. Connection between Pin 2 and Pin 3 is removed when SLAVE input is used.
4. See Table 2 for Component Functional Description
115VAC
220VAC
115VAC
220VAC
(1) R1
270
Ω, 1W
1k
Ω, 2W
(1) C2
0.33µF,200V
0.22µF,400V
(2) R1
82
82
(2) C2
0.22µF,200V
0.1µF,400V
R2
1.5M
1.5M
C3
47µF
47µF
R3
2.7M
4.7M
C4
470pF
470pF
R4
2.7M
4.7M
C5
.047µF
.047µF
(3) R5
1M
Ω to 5MΩ 1MΩ to 5MΩ
C6
(5)
(5)
R6
100
100
C7
0.1µF,200V
0.1µF,400V
R7
(4)
(4)
Z1
15V, 1/2W
15V, 1/2W
R8
(4)
(4)
D1
1N4148
1N4148
R9
1.5M
1.5M
L1
100µH
200µH
R10
150k
150k
(6) T1
Q4008L4
Q5004L4
C1
0.15µF, 200V 0.15µF, 400V
(1) Connection A
(2) Connection B
(3) Select for desired touch sensitivity
(4) 100k
Ω ≤ (R7 + R8) ≤ 10MΩ
(5) (R7 + R8)C6
≥ 5ms
(6) Typical
All Resistors 1/4W, all Capacitors 25V unless otherwise specified
TABLE 2 . FIGURE 5 COMPONENT FUNCTIONAL DESCRIPTION
COMPONENTS
FUNCTIONAL DESCRIPTION
Z1, D1, R1, C2, C3
DC Power Supply.
R2, C4
Current limit and filter AC for SYNC input.
C1, L1
RFI filtering for AC Mains.
C5
PLL filter capacitor.
R3, R4, R5
Network sets the Touch Sensitivity
for the SENSE input.
R6
Current limiting and isolation between
IC output and Triac Gate.
R7, R8, C6
Oscillator R-C network.
Potentiometer R6 required only if providing
user adjustment of Time-out, TD1.
R9, C7
Filter for the Electronic Extension
R10
Current limiting resistor for
the Mechanical Switch Extension.


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