LSI LS6501LP Pir motion detector Datasheet

LSI/CSI
UL
®
LS6501LP
LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747
(631) 271-0400 FAX (631) 271-0405
A3800
PIR MOTION DETECTOR
July 2001
PIN ASSIGNMENT - TOP VIEW
DIFF. AMP. 1 OUTPUT
1
DIFF. AMP. 2 INPUT (-)
16
DIFF. AMP 1 INPUT (-)
2
15
DIFF. AMP 1 INPUT (+)
DIFF. AMP. 2 OUTPUT
3
14
5V REGULATOR OUTPUT
OSCILLATOR INPUT
4
13
TIMER CONTROL INPUT
AC INPUT
5
12
DEAD TIME SELECT INPUT
V SS
6
11
INHIBIT INPUT
TRIAC/RELAY OUTPUT
7
10
PULSE MODE
SELECT INPUT
V DD
8
9
LED OUTPUT
LSI
LS6501LP
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
FIGURE 1
APPLICATIONS:
• Automatic Light Control
• Intrusion Alarm
DESCRIPTION: (See Figure 2)
The LS6501LP is a monolithic, CMOS Silicon Gate integrated 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 connection 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 thresholds 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.
6501LP-071201-1
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.
INHIBIT
The Output Duration Timer can be inhibited from triggering by the voltage level at the INHIBIT input. When this
voltage level exceeds the Inhibit Threshold, the Timer will
be prevented from triggering if it is OFF. If the Timer is
ON, the INHIBIT input is blocked from affecting the Timer.
There is approximately 10% hysteresis between the Inhibit and Enable thresholds at the INHIBIT input. The LED
output is not affected by the INHIBIT input. An adjustable
Ambient Light Level Inhibit can be implemented by connecting a Light Determining Resistor (LDR) network to the
INHIBIT input (See Figures 3 and 4).
DEAD TIME
False turn-ons are prevented from occurring by establishing a Dead Time between the end of the timeout of
the Output Duration Timer and the retriggering of that
Timer. The state of the DEAD TIME SELECT input determines the Dead Time duration (See Table 2).
OSCILLATOR
For battery operation, an external RC is connected to the
OSCILLATOR input to produce a 50Hz or 60Hz clock. A
30Hz clock can be used to extend timing durations (See
Tables 1 and 2).
DC POWER SUPPLY
VDD-Vss is 8V±1V. Typical quiescent current is 250µA
(TRIAC/RELAY, LED and REGULATOR outputs not loaded).
DC REGULATOR
The LS6501LP includes a Regulator which provides a
nominal +5V to the Differential Amplifier and Window
Comparator and is available as an output to supply the
PIR Sensor.
TRIAC/RELAY OUTPUT
This open drain output turns ON when the Output Duration Timer is triggered. The output drives a Triac when
the OSCILLATOR input is tied to ground and 50/60Hz is
applied to the AC input (See Figure 3). The output drives
a Relay when the AC input is tied to ground and an RC
network is connected to the OSCILLATOR input (See
Figure 4).
TRIAC DRIVE (See Figure 3)
With the Output Duration Timer ON and a 2.7V P-P
60Hz signal applied to the AC input, the output produces
a negative-going pulse in each half-cycle delayed a
nominal 1.2ms from the zero crossing. There is no more
than 150µs difference between the zero-crossing delay
of each pulse.
RELAY DRIVE (See Figure 4)
The output can sink current continously with the Output
Duration Timer ON and the OSCILLATOR input active.
This output can sink current from a relay coil returned to
a positive voltage (VDD to 12.5V maximum).
TABLE 1
OUTPUT DURATION TIMER AS A FUNCTION OF TIMER CONTROL INPUT VOLTAGE
(f = Frequency at AC input or OSCILLATOR input)
INPUT VOLTAGE
0
1/16 VDD
2/16 VDD
3/16 VDD
4/16 VDD
5/16 VDD
6/16 VDD
7/16 VDD
8/16 VDD
9/16 VDD
10/16 VDD
11/16 VDD
12/16 VDD
13/16 VDD
14/16 VDD
15/16 VDD
f = 30Hz
30
60
90
120
4
6
8
10
12
14
16
18
20
24
28
30
f = 50Hz
18
36
54
72
2.4
3.6
4.8
6
7.2
8.4
9.6
10.8
12
14.4
16.8
18
f = 60Hz
15
30
45
60
2
3
4
5
6
7
8
9
10
12
14
15
UNIT
sec
sec
sec
sec
min
min
min
min
min
min
min
min
min
min
min
min
TABLE 2
DEAD TIME DURATION AS A FUNCTION OF THE STATE OF DEAD TIME SELECT INPUT
(f = Frequency at AC input or OSCILLATOR input)
INPUT STATE
0
OPEN
1
6501LP070601-2
f = 30Hz
f = 50Hz
2
8
16
1.2
4.8
9.6
f = 60Hz
1
4
8
UNIT
sec
sec
sec
ABSOLUTE MAXIMUM RATINGS:
PARAMETER
SYMBOL
VALUE
UNIT
DC supply voltage
Any input voltage
Operating temperature
Storage temperature
VDD - VSS
VIN
TA
TSTG
+10
VSS - 0.3 to VDD + 0.3
-40 to +85
-65 to +150
V
V
°C
°C
ELECTRICAL CHARACTERISTICS:
( All voltages referenced to VSS, TA = -40˚C to +55˚C, 7V≤ VDD ≤9V, unless otherwise specified.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
CONDITIONS
IDD
IDD
-
250
300
350
420
µA
µA
TRIAC/RELAY,
LED and REGULATOR
outputs not loaded
VR
IR
4.5
-
-
-
6
200
V
µA
-
G
CMRR
PSRR
ID
70
60
60
-
-
-
25
dB
dB
dB
µA
-
VS
70
-
-
µV
TA = 25˚C, with Amplifier
Bandpass configuration
as shown in Figure 3
-
0
-
2.5
V
-
VIR
-
.4VR
-
V
-
COMPARATOR:
Lower Reference
Higher Reference
VTHL
VTHH
-
VIR - .5V
VIR + .5V
-
V
V
-
DIGITAL FILTER:
Input Pulse Width
(for recognition)
TPW
TPW
66.3
79.6
-
-
ms
ms
SUPPLY CURRENT:
VDD = 8V
VDD = 7V - 9V
REGULATOR:
Voltage
Current
DIFFERENTIAL AMPLIFIERS:
Open Loop Gain, Each Stage
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Output Drive Current
Input Sensitivity
(Minimum Detectable Voltage
to first amplifier when both
amplifiers are cascaded for
a net gain of 7,500)
Input Dynamic Range
Diff. Amp 2 Internal
Reference
60Hz operation
50Hz operation
INHIBIT INPUT:
Inhibit Threshold
VTHI
-
≥ .5VDD
-
V
-
Enable Threshold
VTHE
-
≤ .45VDD
-
V
-
OSCILLATOR:
Resistor
Capacitor
RO
CO
-
2.2
.01
-
MΩ
µF
60Hz Oscillator
Frequency
Resistor
Capacitor
RO
CO
-
4.3
.01
-
MΩ
µF
30Hz Oscillator
Frequency
6501LP-070601-3
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
CONDITIONS
OUTPUT DRIVE CURRENT:
Triac (AC MODE)
IO
-40
-
-
mA
With 3V Triac Gate Drive
Relay (DC MODE)
IO
-10
-
-
mA
With 1V Max. across the
LS6501LP.
TTPW
TOD
20
1.00
30
1.2
45
1.32
µs
ms
VDD = 8V, f = 60Hz and
2.7V P-P AC input
-
-
150
µs
f = 60Hz
TRIAC OUTPUT TIMING:
Pulse Width
Delay from zero crossover
Delay difference between
zero crossovers
TODD
AC INPUT IMPEDANCE
ZAC
270
-
-
kΩ
-
LED OUTPUT:
Sink Current
ILS
-
-
8
mA
VDD = 8V, Vo = .5V Max.
TLPW
.75
1
1.25
sec
f = 60Hz.
-
-
5.125
sec
-
Pulse Width
DUAL PULSE MODE:
Time between pulse-pairs
for motion recognition
DIFF AMP 2
OUTPUT
TR
3
DIFF AMP 2 2
INPUT (-)
DIFF AMP 1
OUTPUT
5V REGULATOR
OUTPUT
14
WINDOW
COMPARATOR
5 VOLT
REGULATOR
VREG
8
V REG
1
VDD
6
-
VSS
COMP
VREG
DIFF AMP 1
16
INPUT (-)
V REG
+
AMP
DIFF AMP 1 15
INPUT (+)
+
AMP
VREG
+
V REG
DIGITAL
FILTER
1 SECOND
PULSE GEN
9
LED OUTPUT
COMP
+
PULSE
SELECT
LOGIC
10 PULSE MODE
SELECT INPUT
OUTPUT
BUFFER
TIMER
CONTROL 13
INPUT
A/D
CONVERTER
INHIBIT INPUT
11
DEAD TIME
SELECT INPUT
12
OUTPUT
DURATION
TIMER
CONTROL
LOGIC
ZERO CROSS-OVER
DETECT
5
AC INPUT
OSCILLATOR
4
OSCILLATOR INPUT
INHIBIT
COMPARATOR
DEAD
TIME
TIMER
FIGURE 2. LS6501LP BLOCK DIAGRAM
6501LP-070601-4
7 TRIAC/RELAY OUTPUT
R3
C3
1
+
C4
AMP 1
OUT
AMP 1
(-)IN
AMP 2
(-)IN
AMP 1
(+)IN
+
- C2
16
R2
R4
2
C5
C6
R6
R5
3
PIR
SENSOR
15
AMP 2
OUT
5V REG
OUT
14
+
R1
V DD
4
OSC
R10
C9
R9
N
LOAD
MT2
MT1
AC MAINS
R7 C7
5
D1
TI
Z1
R11
6
-
C8
+
7
G
V DD
C1
13
R12
TIMER
CONTROL
12
AC
R14
P
SW
V DD
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 = 3.6kΩ
R11 = 100Ω
R12 = 1.0MΩ
R13 = 1.0MΩ
R14 = 910kΩ
R15 = 3.6kΩ
All Resistors 1/4W, all Capacitors 10V
unless otherwise specified.
LDR
11
V SS
TRIAC
OUT
S1
DEAD TIME
SEL
R13
INH
PULSE
MODE
SEL
V DD
10
SPDT (On -On)
S1
R8
8
V DD
V DD
V DD
LED
OUT
9
V DD
R15
LED
LS6501LP
S1 = SPDT (On-Off-On)
*
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.
FIGURE 3. TYPICAL TRIAC WALL SWITCH APPLICATION
6501LP-071201-5
R3
C3
1
+
C4
AMP 1
OUT
R4
2
AMP 2
(-)IN
AMP 1
(-)IN
16
AMP 1
(+)IN
15
R2
3
V DD
AMP 2
OUT
5V REG
OUT
4
OSC
C8
RELAY
POWER SUPPLY
V DD
5
6
AC
TIMER
CONTROL
DEAD TIME
SEL
V DD
C1
13
R12
12
S1
R14
11
V SS
V DD
LDR
R13
INH
R9
R10
R8
Q1
+
R1
SEE NOTE 2
D1
C6
14
R15
RELAY
COIL
PIR
SENSOR
R6
R5
C5
+
C2
-
7
Q2
RELAY
OUT
PULSE
MODE
SEL
V DD
10
SPDT (On - On)
S1
V DD
V DD
R7
REGULATOR
8
+
-
V DD
LED
OUT
9
V DD
R11
C7
LED
S1 = SPDT (On - Off - On)
LS6501LP
RAW DC
INPUT
R1 = 36kΩ
R2 = 36kΩ
R3 = 2.7MΩ
R4 = 36kΩ
R5 = 2.7MΩ
R6 = 36kΩ
R7 = 10kΩ
R8 = 3.6kΩ
R9 = 10kΩ
R10 = 18kΩ
R11 = 3.6kΩ
R12 = 1.0MΩ
R13 = 1.0MΩ
R14 = 910kΩ
R15 = 2.4MΩ
C1 = 100µF
C2 = 33µF
C3 = .01µF
C4 = 33µF
C5 = .01µF
C6 = .1µF
C7 = 100µF
C8 = .01µF
LDR = SILONEX NSL-19M52 (Typical)
Q1 = 2N3904
Q2 = 2N3906
REGULATOR = MC78L08 (Typical)
RELAY = No typical P/N
PIR = HEIMANN LHi 958 or 878 (Typical)
All Resistors 1/4W, all Capacitors 10V
NOTES: 1. The “Raw DC Voltage” into the Regulator can range between 11V and 25V and generates an 8V DC
Supply Voltage for the LS6501LP.
2. The R10, R9, Q2, R8, R7, Q1 components interface LS6501LP Pin 7 to a Relay Coil returned to a separate
High-Voltage DC Supply.
3. A Relay Coil returned to a maximum of 12.5V can be directly driven by the LS6501LP Pin 7.
FIGURE 4. TYPICAL DC RELAY APPLICATION
6501-070501-6
R2
C2
1
+
-
C3
AMP 1
OUT
AMP 1
(-)IN
R5
16
+
R7
R3
2 AMP 2
(-)IN
C4
PIR
SENSOR 1
C5
-
AMP 1
(+)IN
R4
3
R6
15
+
PIR
SENSOR 2
C6
R8
AMP 2
OUT
R10
5V REG
OUT
R9
C8
C9
C7
14
R1
+
-
C1
LS6501LP
R1 = 36kΩ
R2 = 2.7MΩ
R3 = 36kΩ
R4 = 2.7MΩ
R5 = 36kΩ
R6 = 36kΩ
R7 = 36kΩ
R8 = 36kΩ
R9 = 5.6MΩ
R10 = 5.6MΩ
C1 = 100µF
C2 = .01µF
C3 = 33µF
C4 = .01µF
C5 = 33µF
C6 = 33µF
C7 = .01µF
C8 = .1µF
C9 = .1µF
PIRs = HEIMANN LHi 958 or 878 (Typical)
All Resistors 1/4 W. All Capacitors 10V
NOTE: A pair of PIR Sensors may be used in applications where a wider optical field of view is needed.
FIGURE 5. LS6501LP DIFFERENTIAL INTERFACE TO PIR SENSOR PAIR
The information included herein is believed to be
accurate and reliable. However, LSI Computer Systems,
Inc. assumes no responsibilities for inaccuracies, nor for
any infringements of patent rights of others which may
result from its use.
6501-070202-7
V DD
12 VOLT INPUT
8.2V
V DD
LS6501LP
RELAY
COIL
6
OFF
S1
AUTO
7
ON
8
Q
RELAY
OUT
V DD
S1 = SP3T (On - On - On)
FIGURE 6. LOW VOLTAGE INDUSTRIAL CONTROL
For industrial applications a 12 Volt DC power supply can be used to power one or several low voltage PIR modules for many types of motion detection requirements. The low voltage, low current
switch S1 provides ON/OFF/AUTO control of the Relay Coil.
R9
R7
N
ON
SPDT (On - Off - On)
P
OFF
AUTO
MT2
MT1
T1
R11
G
V DD
FIGURE 3
FIGURE 7. AIR-GAP SWITCH CONTROL
The application as shown in Figure 3 can be modified with the addition of a single pole,
three position switch which provides for ON/OFF/AUTO control and also for the air-gap
safety switch required by UL.
6501LP-070501-8
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