參數(shù)資料
型號(hào)： LS7340
廠商： LSI Corporation
英文描述： AUTO SHUT-OFF AC POWER SWITCH WITH PROGRAMMABLE TIMER
中文描述： 自動(dòng)關(guān)機(jī)AC電源開關(guān)，具有可編程定時(shí)器
文件頁(yè)數(shù)： 3/5頁(yè)
文件大?。?/td> 54K
代理商： LS7340
DC ELECTRICAL CHARACTERISTICS:
(T
A
= 25°C, all voltages referenced to V
DD
)
SYMBOL
MIN
V
SS
+12
I
SS
-
PARAMETER
Supply Voltage
Supply Current
TYP
-
1.6
MAX
+18
2.2
UNIT
V
mA
CONDITIONS
-
V
SS
= +15V,
Output off
Input Voltages
SYNC Lo
SYNC Hi
ON Lo
ON Hi
OFF Lo
OFF Hi
V
IRL
V
IRH
V
IOL
V
IOH
V
IVL
V
IVH
0
-
-
-
-
-
-
V
SS
-9.5
V
SS
V
SS
-8
V
SS
V
SS
-8
V
SS
V
V
V
V
V
V
-
-
-
-
-
-
V
SS
-5.5
0
V
SS
-2
0
V
SS
-2
Input Current
SYNC, ON &
OFF Hi
I
IH
-
-
110
uA
With Series 1.5M
Resistor to 115VAC
SYNC, ON &
OFF Lo
I
IL
-
-
100
nA
-
TRIG Hi Voltage
TRIG Lo Voltage
TRIG Sink Current
V
OH
V
OL
I
OS
-
-
V
SS
V
SS
-8
-
-
-
-
V
V
-
V
SS
= +15V
V
SS
= +15V,
V
OL
= V
SS
- 4V
25
mA
TRANSIENT CHARACTERISTICS
(See Fig. 2 and 3)
(All timings are based on Fs = 60Hz, unless otherwise specified.)
PARAMETER
SYNC Frequency
ON/OFF Sense Time
SYMBOL
Fs
Ts
1
MIN
40
50
TYP
-
-
MAX
70
Infinite
UNIT
Hz
ms
TRIG Pulse Width
(LS7339)
(LS7340)
Tw
Tw
-
-
1.0
33
-
-
ms
μs
STATE 1 Time-out
T
D1
-
255RC
-
s
ABSOLUTE MAXIMUM RATINGS:
PARAMETER
DC supply voltage
Any input voltage
Operating temperature
Storage temperature
SYMBOL
V
SS
- V
DD
V
IN
T
A
T
STG
VALUE
+20
UNIT
V
V
°C
°C
V
SS
-20 to V
SS
+ .5
0 to +85
-65 to +150
7339/40-032499-3
TABLE 2. COMPONENT FUNCTIONAL DESCRIPTION FOR FIGURE 5
COMPONENTS FUNCTIONAL DESCRIPTION
Z1, D1, R1, C2, C3
DC Power Supply.
R2, C4
Current limit and filter AC for SYNC input.
C1, L1
RFI filtering for AC Mains.
C5
PLL filter capacitor.
R5
Current limiting and isolation betweenIC output and Triac Gate.
R6, R7, C6
Oscillator R-C network.
Potentiometer R6 required only if providing user adjustment of Time-out, TD1.
R3, R4
Pullup resistors to establish normally inactive condition of ON and OFF inputs.
S1
Momentary Double Throw Switch used to activate appropriate input.
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