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LS7631 Datasheet(PDF) 3 Page - LSI Computer Systems

Part No. LS7631
Description  TOUCH CONTROL HALOGEN LAMP DIMMER
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Maker  LSI [LSI Computer Systems]
Homepage  http://www.lsicsi.com
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LS7631 Datasheet(HTML) 3 Page - LSI Computer Systems

   
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TIMING CHARACTERISTICS (See Figures 2, 3 and 4):
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
CONDITION
SYNC Frequency
fs
40
-
70
Hz
-
SHORT Touch
TSI
42
-
333
ms
60Hz
TSI
50
-
400
ms
50Hz
LONG Touch
TS2
342
-
infinite
ms
60Hz
TS2
410
-
infinite
ms
50Hz
TRIG pulse width
Tw
-
130.2
-
µs
60Hz
Tw
-
156.2
-
µs
50Hz
Conduction Angle
ø
41
-
158
deg
-
ø incremental steps
∆ø
-
1.4
-
deg
-
(Note 1)
Soft-on slew rate
SS
-
1.4
-
deg/4.17ms
60Hz
SS
-
1.4
-
deg/5ms
50Hz
A0 to A1/A2 to A0 slew rate
SAA
-
1.4
-
deg/33.3ms
60Hz
(Note 2)
SAA
-
1.4
-
deg/40ms
50Hz
A1 to B1/B2 to A2 slew rate
SBA
-
1.4
-
deg/66.7ms
60Hz
(Note 3)
SBA
-
1.4
-
deg/80ms
50Hz
B1 to B2 delay
TBD
-
500
-
ms
60Hz
(Note 4)
TBD
-
600
-
ms
50Hz
Note 1: Total number of steps = 83.
Note 2: Number of steps from A0 to A1, or A2 to A0 = 68.
Note 3: Number of steps from A1 to B1 or B2 to A2 = 15.
Note 4: ø is at minimum between B1 and B2. TBD is applicable for LS7631 only.
For LS7632 when minimum ø is reached, dimming direction reverses only if the LONG Touch is terminated and reapplied.
7631/7632-112102-3
150º
100º
50º
OFF
150º
100º
50º
OFF
150º
100º
50º
OFF
Ø
MODE Ø
Ø
MODE 1
Ø
MODE 2
SENS
TS1
TS2
342ms
SHORT
SHORT
LONG
SHORT
LONG
SHORT
LONG
A2
B2
B1
A1
A0
A2
B2
B1
A2
B2
B1
A1
A0
A0
A0
A1
A2
A2
SLOPE = SBA
MEMORY
REVERSE
REVERSE
SLOPE = Ss
SLOPES = SAA
FIGURE 3. LS7631 TRIG, Ø vs TOUCH (SENS OR EXT)
ø
TRIG
SYNC
TW
FIGURE 2. TRIG OUTPUT CONDUCTION ANGLE, Ø
The information included herein is believed to be
accurate and reliable. However, LSI Computer Systems,
Inc. assumes no responsibilities for inaccuracies, nor for
any infringements of patent rights of others which may
result from its use.
REPLACEMENT FOR P/N SLB 0587
LS7631 and LS7632 can be used in place of the SLB 0587
without modifying the application circuit recommended by
the manufacturer of that IC.


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