參數(shù)資料
型號(hào)： LS7338
廠商： LSI Corporation
英文描述： DELAYED-OFF LIGHT SWITCH WITH PROGRAMMABLE ON-TIMER
中文描述： 延遲開(kāi)關(guān)燈開(kāi)關(guān)與可編程定時(shí)器
文件頁(yè)數(shù)： 2/5頁(yè)
文件大?。?/td> 45K
代理商： LS7338
INPUT/OUTPUT DESCRIPTION:
SENSE (Pin 1)
A logic 0 applied to this input for a minimum of three SYNC cy-
cles, TS1 (50ms for 60Hz, 60ms for 50Hz), causes the circuit to
step to the next state in the operating sequence.
SLAVE (Pin 2)
Same description as SENSE (Pin 1) except that logic 1 replaces
logic 0. This input is designed to be used with Remote Exten-
sions (See Figure 5 and Figure 6.)
V
DD
(Pin 3)
Supply voltage negative terminal.
TRIG (Pin 4)
TRIG is a negative-going pulse occurring once every half cycle
of the SYNC input. Pulse width is 33μs. Table 1 in the General
Description shows values of the TRIG phase angle for the differ-
ent states. (See Figure 2 and Figure 3.)
V
SS
(Pin 5)
Supply voltage positive terminal.
OSC (Pin 6)
An R-C network connected to this input controls the frequency of
oscillation which determines the Time-out, T
D1
, in State 1. T
D1
is
approximately 255RC. The Oscillator is active only in State 1. Chip
to chip Oscillation Tolerance is ±10% for fixed value of RC. Tie Pin
6 to V
SS
if a Time-out is not desired. (See Figure 5.)
CAP (Pin 7)
The CAP input is for external component connection for the PLL fil-
ter capacitor. (See Figure 5.)
SYNC (Pin 8)
The AC Line Frequency (50/60Hz) is applied to this input. The
Phase-Lock Loop synchronizes all internal timings to the AC signal
at the SYNC input. (See Figure 5.)
7338-112497-2
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
DC ELECTRICAL CHARACTERISTICS:
(TA = 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
SENSE Lo
SENSE Hi
SLAVE Lo
SLAVE 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, SENSE &
SLAVE Hi
I
IH
-
-
110
uA
With Series 1.5M
Resistor to 115VAC
SYNC, SENSE &
SLAVE 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
SENSE/SLAVE Sense Time
SYMBOL
Fs
T
s1
MIN
40
50
TYP
MAX
70
Infinite
UNIT
Hz
ms
-
-
TRIG Pulse Width
Tw
-
33
-
μs
STATE 1 Time-out period
STATE 2 Time-out period
T
D1
T
D2
-
- 209
255RC
-
-
s
s
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