LS7635-S 데이터 시트보기 (PDF) - LSI Corporation
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LS7635-S Datasheet PDF : 4 Pages
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TIMING CHARACTERISTICS (See Figures 2, 3 and 4):
PARAMETER
SYMBOL
MIN
TYP
MAX
UNI T
CONDITION
SYNC Frequency
fs
40
SHORT Touch
TSI
42
TSI
50
LONG Touch
TS2
342
TS2
410
TRIG pulse width (see Note 5)
Tw
-
Tw
-
Conduction Angle
ø
50
ø incremental steps
∆ø
-
(Note 1)
Soft-on slew rate
SS
-
SS
-
A0 to A1/A2 to A0 slew rate
SAA
-
(Note 2)
SAA
-
A1 to B1/B2 to A2 slew rate
SBA
-
(Note 3)
SBA
-
B1 to B2 delay
TBD
-
(Note 4)
TBD
-
-
70
Hz
-
333
ms
-
400
ms
-
infinite ms
-
infinite ms
130
-
µs
156
-
µs
-
154
deg
1.4
-
deg
1.4
-
1.4
-
1.4
-
1.4
-
1.4
-
1.4
-
500
-
600
-
deg/8.33ms
deg/10ms
deg/33.3ms
deg/40ms
deg/66.7ms
deg/80ms
ms
ms
-
60Hz
50Hz
60Hz
50Hz
60Hz
50Hz
-
-
60Hz
50Hz
60Hz
50Hz
60Hz
50Hz
60Hz
50Hz
Note 1: Total number of steps = 77.
Note 2: Number of steps from A0 to A1, or A2 to A0 = 55.
Note 3: Number of steps from A1 to B1 or B2 to A2 = 21.
Note 4: ø is at minimum between B1 and B2. TBD is applicable for LS7634 only.
For LS7635 when minimum ø is reached, dimming direction reverses only if the LONG Touch is terminated and reapplied.
Note 5: TW = 488us (60Hz), 586us (50Hz) available. Contact factory for details.
FIGURE 2. TRIG OUTPUT CONDUCTION ANGLE, Ø
SYNC
TRIG
SENS
150º
Ø 100º
MODE Ø 50º
OFF
150º
Ø 100º
MODE 1 50º
OFF
150º
Ø 100º
MODE 2 50º
OFF
7634/7635-071406-3
The information included herein is believed to be
accurate and reliable. However, LSI Computer Systems,
Inc. assumes no responsibilities for inaccuracies, nor for
ø
any infringements of patent rights of others which may
result from its use.
TW
FIGURE 3. LS7634 TRIG, Ø vs TOUCH (SENS OR EXT)
TS1
TS2
SHORT SHORT
SLOPE = Ss
LONG
A0
342ms
A2
B2
SLOPES = S AA
A0
SHORT
SLOPE = SBA
A1 B1 B2
A2
A0
LONG
MEMORY
SHORT LONG
A1 B1 B2
A2
A0
REVERSE
A2
B2
A2
A1 B1 B2
REVERSE
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