LS7232ND Просмотр технического описания (PDF) - LSI Corporation
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LS7232ND Datasheet PDF : 5 Pages
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ABSOLUTE MAXIMUM RATINGS:
PARAMETER
SYMBOL
DC Supply Voltage
VSS
Any Input Voltage
VIN
Operating Temperature
TA
Storage Temperature
TSTG
VALUE
+20
Vss - 20 to Vss + 0.5
0 to +80
-65 to +150
UNIT
V
V
˚C
˚C
DC ELECTRICAL CHARACTERISTICS: (TA = 25˚C, all voltages referenced to VDD)
PARAMETER
Supply Voltage
Supply Current
SYMBOL
Vss
Iss
MIN
TYP
+12
–
–
1.0
MAX
+18
1.4
UNIT
V
mA
Input Voltages:
SYNC Lo
SYNC Hi
SENS Lo
SENS Hi
EXT Lo
EXT Hi
VIRL
VIRH
VIOL
VIOH
VIVL
VIVH
0
–
Vss - 5.5 –
0
–
Vss - 2 –
0
–
Vss - 2 –
Vss - 9.5
V
Vss
V
Vss - 8
V
Vss
V
Vss - 8
V
Vss
V
Input Current:
SYNC, SENS, EXT Hi
IIH
–
–
110
µA
SYNC, SENS, EXT Lo
IIL
–
–
100
nA
TRIG Hi Voltage
TRIG Lo Voltage
TRIG Sink Current
VOH
–
Vss
–
V
VOL
–
Vss - 8
–
V
IOS
25
–
–
mA
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)
TRIG Pulse Width
TW
-
33
-
µs
TRIG Conduction-Angle
Ø
41
-
158
deg
(See Note 1)
Ø Period (Max to Max in
-
-
7.64
-
sec
continuous dimming)
A1B1 = B2A2 duration
-
-
934
-
ms
B1B2 Min. intensity dwell
-
-
500
-
ms
CONDITION
-
Vss = +15V,
output off
-
-
-
-
-
-
With Series 1.5MΩ
Resistor to AC Line
-
-
Vss = +15V
Vss = +15V
VOL = Vss - 4V
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.
7232ND-012703-3
SYNC
ø
TRIG
TW
TW
FIGURE 3. TRIG OUTPUT CONDUCTION ANGLE, Ø
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