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PDF LS6501LP Data sheet ( Hoja de datos )
| Número de pieza | LS6501LP | |
| Descripción | PIR MOTION DETECTOR | |
| Fabricantes | LSI Computer Systems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LS6501LP (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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LSI/CSI
LS6501LP
U® L LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 (631) 271-0400 FAX (631) 271-0405
A3800
PIR MOTION DETECTOR
July 2001
FEATURES:
• Low Quiescent Current
• Direct Interface with PIR Sensor
• Two-Stage Differential Amplifier
• Amplifier Gain and Bandwidth externally controlled
• Window Comparator and Digital Filter limit Noise
• Triac or Relay Output Drive
• Programmable Output Duration Timer
• Ambient Light Level Inhibit input
• Selectable Dead Time
• Single or Dual Pulse Detection
• Timing derived from RC Oscillator or 50Hz/60Hz AC
• Regulated 5V Output for PIR Sensor
• Motion Detection LED Indicator
• Triac can drive Incandescent or Fluorescent Lamps
• LS6501LP (DIP), LS6501LP-S (SOIC-NB)
LS6501LP-SW (SOIC-WB) - See Figure 1
PIN ASSIGNMENT - TOP VIEW
DIFF. AMP. 1 OUTPUT 1
DIFF. AMP. 2 INPUT (-) 2
DIFF. AMP. 2 OUTPUT 3
OSCILLATOR INPUT 4
AC INPUT 5
V SS 6
TRIAC/RELAY OUTPUT 7
V DD 8
16 DIFF. AMP 1 INPUT (-)
15 DIFF. AMP 1 INPUT (+)
14 5V REGULATOR OUTPUT
13 TIMER CONTROL INPUT
12 DEAD TIME SELECT INPUT
11 INHIBIT INPUT
10 PULSE MODE
SELECT INPUT
9 LED OUTPUT
APPLICATIONS:
• Automatic Light Control
• Intrusion Alarm
FIGURE 1
DESCRIPTION: (See Figure 2)
The LS6501LP is a monolithic, CMOS Silicon Gate in-
tegrated circuit, designed for detecting motion from a PIR
Sensor and initiating appropriate responses. The detailed
description of the functional blocks is as follows:
DIFFERENTIAL AMPLIFIER
Each stage of the two stage Differential Amplifier can be set
to have its own amplification and bandwidth. The two inputs
to the first stage allow for single ended or differential con-
nection to PIR Sensors. This stage can be biased anywhere
in its dynamic range. The second stage is internally biased
so that the Window Comparator’s lower and higher thresh-
olds can be fixed relative to this bias.
WINDOW COMPARATOR
The Window Comparator provides noise filtering by enabling
only those signals equal to or greater than a fixed threshold
at the output of the Differential Amplifier to appear at the
output of the Window Comparator.
COMPARATOR DIGITAL FILTER
The output of the Window Comparator is filtered so that
motion must be present for a certain duration before it can
be recognized and appear as pulses at the Digital Filter
output.
OUTPUT DURATION TIMER
The voltage level at the TIMER CONTROL input can
select 16 different timeouts for this Timer (See Table 1).
The selection can be made by varying the setting of a
potentiometer. The Timer is retriggerable and controls
the ON duration of the TRIAC/RELAY output. The trigger
for the Timer is generated from pulses appearing at the
Digital Filter output.
SINGLE PULSE/DUAL PULSE MODES
A Single Pulse or Dual Pulse (two pulses occurring within
a specified time period) at the Digital Filter output can be
selected as the trigger for the Output Duration Timer.
This selection is made by the logic level at the PULSE
MODE SELECT input. Logic 0 = Single Pulse Mode,
logic 1 = Dual Pulse Mode.
LED OUTPUT
This is an open drain output which is turned on by pulses
generated by a retriggerable one-shot. The one-shot is
triggered by the leading edge of pulses appearing at the
Digital Filter output. When turned on, this output can sink
current from a series Resistor-LED network returned to a
positive voltage (V DD to 12.5V maximum). This results in
the LED lighting whenever motion is detected.
6501LP-071201-1
1 page  
R3
N LOAD
MT2
MT1
AC MAINS
SW
P
C3
-
+
C4
R4
C5
1
AMP 1
OUT
AMP 1
(-)IN
16
2 AMP 2
(-)IN
R5
3 AMP 2
OUT
AMP 1 15
(+)IN
5V REG 14
OUT
V DD
R10
R9 C9
R7 C7 D1
4 OSC
TIMER
CONTROL
13
5
AC
DEAD TIME
SEL
12
6
V SS
11
INH
TI
R11
G
Z1
- C8
+7
TRIAC
OUT
PULSE
MODE
SEL
10
R8
8 V DD
LED
OUT
9
V DD L S 6 5 0 1 L P
+
- C2
R2
R6 C6
PIR
SENSOR
R1
+
- C1
V DD
R12
V DD
S1
R14 LDR
R13
V DD
SPDT (On -On)
S1
V DD
V DD
R15
LED
S1 = SPDT (On-Off-On)
R1 = 36kΩ
R2 = 36kΩ
R3 = 2.7MΩ
R4 = 36kΩ
R5 = 2.7MΩ
R6 = 36kΩ
R7 = 270Ω,1/2W
* R7 = 1kΩ,1W
R8 = 1kΩ
R9 = 910kΩ
R10 = 7.5kΩ
*
R10
R11
=
=
3.6kΩ
100Ω
R12 = 1.0MΩ
R13 = 1.0MΩ
R14 = 910kΩ
R15 = 3.6kΩ
All Resistors 1/4W, all Capacitors 10V
unless otherwise specified.
C1 = 100µF
C2 = 33µF
C3 = .01µF
C4 = 33µF
C5 = .01µF
C6 = .1µF
C7 = .47µF, 250V
* C7 = .33µF, 400V
C8 = 1000µF
C9 = .1µF, 250V
* C9 = .1µF, 400V
D1 = 1N4004
LDR = SILONEX HSL-19M52 (Typical)
Z1 = 9.1V, 1/2W
T1 = Q4008L4 (Typical)
* T1 = Q5004L4 (Typical)
PIR = HEIMANN LHi 958 or 878 (Typical)
* = Component change for 220VAC
NOTES: 1. The R9, R10, C9 network provides a 2.7V Peak-to-Peak AC signal input to Pin 5.
2. The C8, D1, Z1, C7, R7 components generate the DC Supply Voltage for the LS6501LP.
3. The R2, C2, R3, C3, R4, C4, R5, C5, R6, C6 components and the two on-chip Differential Amplifiers set a
nominal gain of 5,500 with bandpass filtering of .13Hz to 6Hz.
6501LP-071201-5
FIGURE 3. TYPICAL TRIAC WALL SWITCH APPLICATION
5 Page | ||
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| PDF Descargar | [ Datasheet LS6501LP.PDF ] | |
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