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PDF LS6301 Data sheet ( Hoja de datos )
| Número de pieza | LS6301 | |
| Descripción | AC LINE FREQUENCY TIMER | |
| Fabricantes | LSI | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LS6301 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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LSI/CSI
LS6301
U® L LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 (631) 271-0400 FAX (631) 271-0405
A3800
AC LINE FREQUENCY TIMER
June 2004
FEATURES:
• Selectable Timing Intervals
• Internal Voltage Regulator
• Schmitt Trigger on all inputs for high noise immunity
• Power-On-Reset
• Built-in discharge when power is removed
• Output to drive an SCR connected to load
• Output to flash an indicator when timeout has occurred
• LS6301 (DIP); LS6301-S (SOIC) - See Figure 1
DESCRIPTION:
The circuit operates by counting AC power line cycles. When the
selected timeout occurs, the circuit will switch an external power
device. Selectable timing intervals using 3 mode pins are indicated
in Table 1. The circuit contains a Power-On-Reset (POR) to zero
out all the timing counters upon power-up. A positive or negative
transition of any of the A, B or C timing mode input pins will cause
the timer to reset and begin again. Once time-out is achieved, it re-
mains latched until a mode pin transition occurs or POR occurs.
TABLE 1. TIMING INTERVALS (60 Hz INPUT)
A INPUT B INPUT C INPUT TIMING I NTERVAL
Vss Vss
Vss 15 Minutes
Vss Vss
VDD 2 Minutes
Vss VDD
Vss 30 Minutes
Vss VDD
VDD 45 Minutes
VDD Vss
Vss 30 Seconds
VDD Vss
VDD 15 Minutes
VDD
VDD
Vss 1 Hour
VDD
VDD
VDD 2 Hours
PIN ASSIGNMENT - TOP VIEW
B1
OUT 1 2
OUT 2 3
VSS (+V) 4
FIGURE 1
8 VDD (-V)
7 AC IN
6A
5C
The C input mode pin contains an internal pull up resistor for
directly connecting to a SPST switch. By tying either the A or B
input, or both, to the C input and using the C input as the time-
out selection, a maximum number of timeout combinations can
be achieved.
Output 1 is normally low and goes high at the end of the
selected timing interval. It produces a 1.85Hz output square
wave signal and is normally used to drive an SCR with a load
such as a thermal relay or a neon indicator lamp.
Output 2 is normally high and goes low at the end of the
selected timing interval. The output drives an SCR whose load
could be a relay, resistance heater or some other device. The
load would be turned off at the end of the timing interval.
ELECTRICAL CHARACTERISTICS: Operating Temperature 0°C to 85°C
Power-On-Reset
Hysteresis
Regulating Voltage
Timing Mode Pins:
Pull-up current (Pin 5 only)
Pos. Threshold Voltage (VREG = 5.5V)
Neg. Threshold Voltage (VREG = 5.5V)
AC Input Pin
Maximum frequency
Input Current
Positive Threshold Voltage (VREG = 5.5V)
Negative Threshold Voltage (VREG = 5.5V)
Hysteresis
Output 1 (Pin 2); Output 2 (Pin 3)
Source Current: Vo = 0.4V; TA = 0°C to 85°C
Sink Current: Vo = 0.4V; TA = 0°C to 85°C
6301-060804-1
Min
-
-
-
-
-
0.7
1.0
± 10
-
0.7
2.0
150
3.8
Typical
3.0
0.8
5.5
100
-
-
-
-
-
-
-
-
-
Max
-
-
-
-
4.9
-
-
-
4.9
-
-
950
-
Unit
V
V
V
uA
V
V
MHz
mA
V
V
V
uA
mA
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet LS6301.PDF ] | |
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