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LS7231 Datasheet(PDF) 3 Page - LSI Computer Systems

Part No. LS7231
Description  TOUCH CONTROL LAMP DIMMER
Download  8 Pages
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Maker  LSI [LSI Computer Systems]
Homepage  http://www.lsicsi.com
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LS7231 Datasheet(HTML) 3 Page - LSI Computer Systems

   
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ABSOLUTE MAXIMUM RATINGS:
PARAMETER
SYMBOL
VALUE
UNIT
DC Supply Voltage
VSS
+20
V
Any Input Voltage
VIN
VSS -20 to VSS + 0.5
V
Operating Temperature
TA
0 to +80
˚C
Storage Temperature
TSTG
-65 to +150
˚C
DC ELECTRICAL CHARACTERISTICS:
(TA = 25˚C, all voltages referenced to VDD)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
CONDITION
Supply Voltage
VSS
+12
+18
V
-
Supply Current
ISS
1.0
1.4
mA
VSS = +15V,
output off
Input Voltages:
DOZE LO
VIZL
0
VSS-6
V
-
DOZE HI
VIZH
VSS-2
VSS
V
-
SYNC LO
VIRL
0
VSS-9.5
V
-
SYNC HI
VIRH
VSS-5.5
VSS
V
-
SENS LO
VIOL
0
VSS-8
V
-
SENS HI
VIOH
VSS-2
VSS
V
-
EXT LO
VIVL
0
VSS-8
V
-
EXT HI
VIVH
VSS-2
VSS
V
-
Input Current:
SYNC, SENS, EXT HI
IIH
110
µA
With Series 1.5M
Resistor to
115VAC Line
SYNC, SENS, EXT LO
IIL
100
nA
-
DOZE HI
IIH
100
nA
-
DOZE LO
IIL
100
nA
-
TRIG HI Voltage
VOH
VSS
V
-
TRIG LO Voltage
VOL
VSS-8
V
VSS = +15V
TRIG Sink Current
IOS
25
mA
VSS = +15V
VOL = VSS-4V
TIMING CHARACTERISTICS (See Figures 2 and 3):
All timings are based on fs = 60Hz, unless otherwise specified. 50Hz timings are 1.2 times 60Hz timings.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
SYNC Frequency
fs
40
-
70
Hz
SHORT TOUCH
TS1
42
-
333
ms
(ON/OFF Operation)
LONG TOUCH
TS2
342
-
infinite
ms
(Dimming Operation)
DOZE Frequency
-
-
-
500
Hz
TRIG Pulse Width
TW
-
33
-
µs
TRIG Conduction-Angle
Ø
41
-
158
degrees
(Note 1)
Ø Period (Max to Max in
-
-
7.64
-
seconds
continuous dimming)
A1B1 = B2A2 duration
-
-
934
-
ms
B1B2 Min. intensity dwell
-
-
500
-
ms
NOTE 1.
In the circuit schematic shown in Figure 5, the SYNC input signal is delayed in phase with respect to the AC Line by
about 7°. This delay reduces the conduction angle, Ø with respect to the AC Line by 7° from the values shown above.
7231-34-041195-3


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