Data Sheet PT8A2620 PIR Sensor Light Switch Controller

Data Sheet
PT8A2620
PIR Sensor Light Switch Controller
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Features
Description
•
2-stage operational amplifier for filter
•
CDS to disable output during daytime
The PT8A2620 is a CMOS mixed signal LSI designed
for low cost applications using PIR as motion sensor.
•
Timings are fully adjustable with external RC
components
•
High level output for relay and triac drive with
optical-coupler
•
Built-in noise rejection circuit
•
On-chip regulator
•
Force on function
•
Both AC and DC operating
•
Operating voltage: 5V
•
Few external components
•
Lead free DIP-16 and SOIC-16 package
The PIR sensor detects infrared power variations caused
by motion of a human body and transfer to a voltage
variation. If the PIR output voltage variation conforms to
criteria, the lamp is turned on for an adjustable duration.
CDS can enable or disable output with external voltage
divider.
Ordering Information
Part No.
PT8A2620PE
PT8A2620WE
PT8A2620DE
Application
•
Package
Lead free 16-pin DIP
Lead free 16-pin SOIC
Die form
Energy saving auto-switch in Garden, kitchen,
bathroom, corridor, storage or yard
Block Diagram
VCC
Regulator
CDS
VEE
OP1O
OP1P
OP1N
OP2O
OP2N
OP2P
RELAY
+
_
OP1
VCP
+
Control
Circuit
Comparator
OP2
ON
+
&
VCN
POR
RST
+
-
HT
PWD
GND
PT0119(06/07)
Ver:3
1
Data Sheet
PT8A2620
PIR Sensor Light Switch Controller
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Pin Configuration
OP1P
1
16 VEE
OP1N
2
15 ON
OP1O
3
14 POR
OP2O
4
13 HT
PT8A2620
OP2N
5
12 PWD
OP2P
6
11 VCC
RSTB
7
10 RELAY
GND
8
9 CDS
Pad location
PT8A2620DE
OP1N
OP1O
ON
OP1P
VEE
POR
HT
OP2N
PWD
OP2P
AVDD
RSTB
VDD
VSS
CDS
950um
OP2O
RELAY
Y
X
1310um
Pad Coordinate
Y coordinate
PAD name
747.50
VEE
736.60
ON
639.60
POR
542.60
HT
445.60
PWD
384.60
AVDD
253.40
VDD
113.00
RELAY
CDS
Note: Substrate is connected to VSS
Pad name
OP1P
OP1N
OP1O
OP2O
OP2N
OP2P
RSTB
VSS
X coordinate
429.00
150.10
150.10
150.10
150.10
150.10
150.10
569.50
PT0119 (06/07)
X coordinate
648.20
1009.80
1009.80
1009.80
1009.80
1009.80
1009.80
1009.80
736.70
Y coordinate
747.50
720.20
623.20
526.20
431.00
332.20
237.00
138.20
113.00
Ver:3
2
Data Sheet
PT8A2620
PIR Sensor Light Switch Controller
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Pin and Pad Description
Pin
No.
Pin Name
Pad
Name
I/O
1
OP1P
OP1P
I
2
3
4
5
6
7
8
OP1N
OP1O
OP2O
OP2N
OP2P
RSTB
GND
OP1N
OP1O
OP2O
OP2N
OP2P
RSTB
VSS
I
O
O
I
I
I
-
9
CDS
CDS
I
10
RELAY
RELAY
O
11
VCC
12
PWD
AVDD
VDD
PWD
I/O
13
HT
HT
I/O
14
15
POR
ON
POR
ON
I
I
16
VEE
VEE
O
-
Description
Non-inverted input of first operational amplifier, connected directly to source of
PIR sensor
Inverted input of first operational amplifier
Output of first operational amplifier
Output of second operational amplifier
Inverting input of second operational amplifier
Noninverting input of second operational amplifier, internal 1.8V default.
Reset input, active low.
Ground
Schmitt, connected to a CDS voltage divider for daytime/night auto-detection. Low
input to this pin can disable PIR input. CDS should be connected to VCC when not
using this function.
RELAY drive output through an external NPN transistor, active high. The output
active duration is controlled by the HT pin
Power supply
Schmitt input/open drain output, pulse width detection*
Schmitt input/open drain output, hold time, external RC to set output ON time
duration. Use a VR to make variable ON time.
Power on reset, reset the chip in about 40s after power on with an external RC.
Schmitt, force on control input, active low.
Internal voltage regulator output, 3.6V with respect to ground. Connected to the
drain of PIR sensor
Functional description
Force On Function
Pulse width detection (PWD) or Noise rejection circuit
PT8A2620
&
&
Pulse width detection can be used to filter the noise in order to
prevent error trigger from the system. The default criteria of
the width must be more than 400ms which can be set with an
external RC.
Hold time (HT)
ON
POR
RST
Hold time, in other word, the output active duration, it can be
set with an external RC. One various resistor can be used to
changed the related output duration.
Force on function
Power on Reset (POR)
The IC can force the controlled lamp to on state by turning off
the power supply for a brief period of time. During this brief
power interruption, the power to the IC must be maintained.
Shown in the schematic, with ON input discharged to low
while RST maintains at high, the lamp output can be set to on
until a RST input is low (longer period of power down). This
feature may cause not intended lamp on situation during brief
power interruption. Tie ON to VCC to disable this feature.
The external PIR sensor requires a period of up to 40 seconds
to stabilize, so a power on reset circuit is required to ensure
proper operations. During this power on reset period, the lamp
is on to indicate proper operation.
Retrigger
If another PIR signal is attained with valid duration, the circuit
will be retriggered, and the hold time will be restarted from
this time.
PT0119 (06/07)
Ver:3
3
Data Sheet
PT8A2620
PIR Sensor Light Switch Controller
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Trigger Timing
RSTB
RST
CDS
+trigger level
-trigger level
Comparator
Input
Comparator
Output
An active pulse width
PWD
Threshold
Threshold
HT
Hold
time
ON
power on reset
time 40s
POR
Threshold
RELAY
Maximum Ratings
Storage Temperature......................................................................................-40oC to +125oC
Supply Voltage to Ground Potential (Input & VCC Only)..........................-0.5V to+6.0V
Supply Voltage to Ground Potential (Outputs & D/O Only)....................-0.5V to+6.0V
DC Input Voltage ................................................................................................-0.5V to +6.0V
DC Output Current...................................................................... 20mA
Power Dissipation.............................................................................................................500mW
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
Recommended operation conditions
Sym
Parameter
Min
Typ
Max
Unit
VCC
TA
Operating Voltage
Operating temperature
4.75
-25
5.0
25
6.0
70
V
°C
PT0119 (06/07)
Ver:3
4
Data Sheet
PT8A2620
PIR Sensor Light Switch Controller
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DC Electrical Characteristics
Symbol
Description
Test Conditions
Min
Input high leakage current
-1
(ON,POR, CDS)
I IH
VIH=4.5V
Input high leakage current (RSTB)
-6
Input low leakage current
-1
(ON,POR, CDS)
I IL
VIL=0.5V
Input low leakage current (RSTB)
-15
Output Sink Current(HT)
30
IOL
VOL=0.5V
Output Sink Current(PWD)
10
Output Sink Current(RELAY)
5
IOH
Output Source Current (RELAY)
VOH=4.5V
–10
VTH1
“H” Transfer Voltage (POR,CDS,PWD,HT)
3.0
VTL1
“L” Transfer Voltage (POR,CDS,PWD,HT)
1.4
VTH2
“H” Transfer Voltage (ON)
2.7
VTL2
“L” Transfer Voltage (ON)
1.6
VTH3
“H” Transfer Voltage (RSTB)
2.8
VTL3
“L” Transfer Voltage (RSTB)
1.4
Note: These specifications apply for VCC = 5.0V and -25 oC ≤ TA ≤ 70 oC, unless otherwise specified.
Type
Max
Unit
-
1
µA
-
-1
µA
-
1
µA
3.3
1.7
3.0
1.9
3.1
1.7
-8
3.6
2.0
3.3
2.2
3.4
2.0
µA
mA
mA
mA
mA
V
V
V
V
V
V
AC Electrical Characteristics
Voltage regulation circuit
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VEE
VOP2P
∆VO
∆VLDR
IL
Regulator Output Voltage
Noninverting input of OP2
Line regulation
Load regulation
Regulator Output current
No load
No load
4.5≤VCC≤5.5V, IL =1mA
VCC=5V, 0.5mA ≤ IL≤2mA
VCC=5V
3.2
1.5
4
3.6
-
4.0
2.0
100
30
-
V
V
mV
mV
mA
Operational amplifier and windows comparator
Parameter
Description
BW
3dB band width
VTH
Threshold of windows
comparator
VTL
Test condition
VCC=5V
VCC=5V
Min
10
1.9
1.4
TYP
2.05
1.55
Max
2.2
1.7
Unit
KHz
V
V
Power Dissipation
Symbol
Description
ICC
Power supply current
Test condition
VCC=5V, other Input Pins=GND-, all output
floating.
PT0119 (06/07)
Min
Typ
Max
Unit
-
-
200
µA
Ver:3
5
Data Sheet
PT8A2620
PIR Sensor Light Switch Controller
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Application Circuit
R9
BLACK
S1
1M
C4
0.68UF/400V
LIVE
56/1W
SW SPST
D5
IN4007
CR3
1N4749
C6
220uF/10V
1N5231B
C5
RED
100UF/35V
R13
D4
1N4007
LAMP
CR2
1N4749
NAT URE
WHIT E
C8
203
C16
R20
*
100UF
24V
C1
104
VCC
R11 1M
Force on
D1
R2 1N4148
4M
10uF/10V
16
VEE
OP 1P
15
ON
OP 1N
14
POR
OP 1O
13
HT
OP 2O
12
PW D
OP 2N
OP 2P
R17
VCC
11
560K
VCC
RELAY
10
RELAY
C14
223
9
R7
100K
D2
CDS
R3
RST
GND
VCC
C12
R14
22K
PT8A2620
100UF/10V C7
Warm up 40s
R6
100K
C3
R16 56K
D SG
SD6222
R18 680K
R1 150K
RELAY
2.2K
Q1
9014
Turn S1 on/off once to enter chip into force on state.
Exitting force on must power off a period
220uF/10V
C2
CR1
5.1V
S
R4
*
VCC
2K
D3
1N4148
S2
AC 220V
OUTSIDE
R12
24V
R8
1
203
2
C10
22UF/10V
R15
3
R10 1M
4
C9
203
5
22K
22UF/10V
C11
6
7
R19
8
10K
C15
47UF/10V
VCC
C13
10UF/10V
1N4148
R5
CDS
PT0119 (06/07)
Ver:3
6
Data Sheet
PT8A2620
PIR Sensor Light Switch Controller
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Mechanical Information
PE (Lead free DIP-16)
16
.240
.280
1
6.09
7.11
7.62
8.25
.300
.325
.780
.800
19.82
20.32
.210
Max
.008
.014
5.33
SEATING
PLANE
.015
.115
.150
2.921
3.81
0.381
.014
.022
2.54
.430
Max
10.92
Min
X.XX
X.XX
.100
typical
0.20
0.35
.356
.558
DENOTES DIMENSIONS
IN MILLIMETERS
Note:
1) Controlling dimensions in inches.
2) Ref: JEDEC MS-001 AB
WE (Lead free SOIC-16)
16
.0099
.0196
.149
.157
3.78
3.99
0.25
0.50
x 45°
.0075
.0098
0-8°
0.19
0.25
0.41 .016
1.27 .050
1
.386
.393
9.80
10.00
.2284
.2440
5.80
6.20
.053 1.35
.068 1.75
.0155
.0260
0.393
0.660
SEATING
PLANE
REF
.050
BSC
1.27
.013
.020
0.330
0.508
.0040 0.10
.0098 0.25
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
Note:
1) Controlling dimensions in millimeters.
2) Ref: JEDEC MS-012 AC
PT0119 (06/07)
Ver:3
7
Data Sheet
PT8A2620
PIR Sensor Light Switch Controller
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Notes
Pericom Technology Inc.
Email: [email protected]
Web Site: www.pti.com.cn, www.pti-ic.com
China:
No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China
Tel: (86)-21-6485 0576
Fax: (86)-21-6485 2181
Asia Pacific:
Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong
Tel: (852)-2243 3660
Fax: (852)- 2243 3667
U.S.A.:
3545 North First Street, San Jose, California 95134, USA
Tel: (1)-408-435 0800
Fax: (1)-408-435 1100
Pericom Technology Incorporation reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or
performance and to supply the best possible product. Pericom Technology does not assume any responsibility for use of any circuitry described other than the
circuitry embodied in Pericom Technology product. The company makes no representations that circuitry described herein is free from patent infringement or other
rights, of Pericom Technology Incorporation.
PT0119 (06/07)
Ver:3
8