pt8a2620 Pericom Technology Inc, pt8a2620 Datasheet

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pt8a2620

Manufacturer Part Number
pt8a2620
Description
Pir Sensor Light Switch Controller
Manufacturer
Pericom Technology Inc
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
pt8a2620W
Manufacturer:
PTC
Quantity:
139
PT0119(03/03)
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Features
• 2-stage operational amplifier for filter
• CDS to disable output during daytime
• Timings are fully adjustable with external RC
• High level output for relay and triac drive with
• Built-in noise rejection circuit
• On-chip regulator
• Force on function
• Both AC and DC operating
• Operating voltage: 5V
• Few external components
Ordering Information
Block Diagram
components
optical-coupler
P
P
P
P
P
P
P
a
a
a
a
a
T
T
t r
t r
t r
t r
t r
8
8
A
A
N
N
N
N
N
2
2
u
u
u
u
u
6
6
m
m
m
m
m
2
2
0
OP2O
OP2N
OP2P
OP1P
b
b
b
b
b
0
OP1O
OP1N
GND
W
V
V
P
r e
r e
r e
r e
r e
EE
CC
+
_
+
-
OP2
OP1
1
1
Regulator
6
6
P
P
P
P
P
-
-
a
a
a
a
a
P
k c
k c
k c
P
k c
k c
n i
n i
VCN
a
a
a
VCP
a
a
P
e g
e g
e g
e g
e g
S
D
O
P I
P
Comparator
+
+
-
-
1
General Description
The PT8A2620 is a CMOS mixed signal LSI designed
for low cost applications using PIR as motion sensor.
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.
Applications
• Energy saving auto-switch in Garden, kitchen,
&
bathroom, corridor, storage or yard
PIR Sensor Light Switch Controller
Control
Circuit
RELAY
PWD
CDS
POR
RST
ON
HT
Data Sheet
PT8A2620
Ver:2

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pt8a2620 Summary of contents

Page 1

... GND PT0119(03/03) PIR Sensor Light Switch Controller General Description The PT8A2620 is a CMOS mixed signal LSI designed for low cost applications using PIR as motion sensor. 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 ...

Page 2

... Data Sheet PT8A2620 ...

Page 3

... 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. An active pulse width Hold time 3 Data Sheet PT8A2620 ON POR RST +trigger level -trigger level Threshold Threshold Threshold Ver:2 ...

Page 4

... 5.0V and - unless otherwise specified Data Sheet PT8A2620 ...

Page 5

... Data Sheet PT8A2620 ...

Page 6

... Application Circuit of PT8A2620 Turn S1 on/off once to enter chip into force on state. Exitting force on must power off a period ...

Page 7

... 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(03/03) PIR Sensor Light Switch Controller Notes Pericom Technology Inc. Web Site: www.pti.com.cn, www.pti-ic.com Fax: (86)-21-6485 2181 Fax: (852)- 2243 3667 Fax: (1)-408-435 1100 7 Data Sheet PT8A2620 Ver:2 ...

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