參數(shù)資料
型號(hào): LS7237
廠商: LSI Corporation
英文描述: TOUCH CONTROL LAMP STEP DIMMER
中文描述: 觸摸式控制燈明暗步
文件頁(yè)數(shù): 3/4頁(yè)
文件大?。?/td> 43K
代理商: LS7237
ABSOLUTE MAXIMUM RATINGS:
PARAMETER SYMBOL VALUE UNIT
DC Supply Voltage
V
SS
Any Input Voltage
V
IN
Operating Temperature
T
A
Storage Temperature
T
STG
+20
V
SS
-20 to V
SS
+0.5
0 to +80
-65 to +150
V
V
C
C
DC ELECTRICAL CHARACTERISTICS:
(T
A
= 25C, all voltages referenced to V
DD
)
PARAMETER SYMBOL
Supply Voltage V
SS
Supply Current
MIN
+12
TYPE MAX UNIT CONDITION
+18
1.0
1.4
V -
mA V
SS
= +15V,
output off
I
SS
Input Voltages:
MODE
LO
MODE
HI
SYNC
LO
SYNC
HI
SENS
LO
SENS
HI
EXT
LO
EXT
HI
V
IZL
V
IZH
V
IRL
V
IRH
V
IOL
V
IOH
V
IVL
V
IVH
0
V
SS
-9
V
SS
V -
V
SS
-9.5
V -
V
SS
V -
V
SS
-8
V -
V
SS
V -
V
SS
-8
V -
V
SS
V -
V -
V
SS
-1.5
0
V
SS
-5.5
0
V
SS
-2
0
V
SS
-2
Input Current:
SYNC, SENS, EXT
HI
I
IH
110
μA With Series 1.5M
Resistor to
115VAC Line
nA -
SYNC, SENS, EXT
LO
I
L
100
TRIG
HI Voltage
TRIG
LO Voltage
TRIG
Sink Current
V
OH
V
OL
I
OS
25
V
SS
V
SS
-8
V -
V V
SS
= +15V
mA V
SS
= +15V
V
OL
= V
SS
-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
SYNC
Frequency
SENS/EXT
Duration
SYMBOL
fs
T
S1
MIN TYPE MAX
40
-
50
-
UNIT
70
Infinite
Hz
ms
TRIG
Pulse Width
T
W
-
33
-
μs
7237-041395-3
OUTPUT
DRIVER
DIGITAL
COMPARATOR
MEMORY
PHASE
LOCK
LOOP
CONTROL
LOGIC
BUF
BUF
BUF
BUF
SYNC
CAP
MODE
EXT
SENS
V
SS
V
DD
FIGURE 4
LS7237 BLOCK DIAGRAM
4
3
2
6
5
1
7
(+V)
(-V)
8
TRIG
POINTER
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