LS7631 查看數據表（PDF） - LSI Corporation
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LS7631 Datasheet PDF : 4 Pages
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TIMING CHARACTERISTICS (See Figures 2, 3 and 4):
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
CONDITION
SYNC Frequency
fs
40
SHORT Touch
TSI
42
TSI
50
LONG Touch
TS2
342
TS2
410
TRIG pulse width
Tw
-
Tw
-
Conduction Angle
ø
41
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
-
-
-
-
-
-
130.2
156.2
-
1.4
1.4
1.4
1.4
1.4
1.4
1.4
500
600
70
333
400
infinite
infinite
-
-
158
-
-
-
-
-
-
-
-
-
Hz
ms
ms
ms
ms
µs
µs
deg
deg
deg/4.17ms
deg/5ms
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 = 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.
FIGURE 2. TRIG OUTPUT CONDUCTION ANGLE, Ø
SYNC
ø
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.
TRIG
SENS
150º
Ø 100º
MODE Ø 50º
OFF
150º
Ø 100º
MODE 1 50º
OFF
150º
Ø 100º
MODE 2 50º
OFF
7631/7632-112102-3
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.
TW
FIGURE 3. LS7631 TRIG, Ø vs TOUCH (SENS OR EXT)
TS1
TS2
SHORT SHORT
SLOPE = Ss
LONG
A0
342ms
A2
SLOPES = SAA
A0
SHORT
SLOPE = SBA
A1 B1 B2
A2
A0
LONG
MEMORY
SHORT LONG
A1 B1 B2
A2
A0
REVERSE
A2
A2
A1 B1 B2
REVERSE
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