PT8A2620P Pericom Semiconductor, PT8A2620P Datasheet

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PT8A2620P

Manufacturer Part Number
PT8A2620P
Description
Manufacturer
Pericom Semiconductor
Datasheet
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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PT8A2620P Summary of contents

Page 1

Features • 2-stage operational amplifier for filter • CDS to disable output during daytime • Timings are fully adjustable with external RC components • High level output for relay and triac drive with optical-coupler • Built-in noise rejection circuit ...

Page 2

... active motion must meet certain condition. The chip transfers motion to pulse width signal active motion must meet a preset pulse width. Pulse width is adjustable by external RC. PT0119(03/03) PIR Sensor Light Switch Controller PT8A2620P/W OP1P OPIN ...

Page 3

Functional description Pulse width detection (PWD) or Noise rejection circuit 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 ...

Page 4

Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Storage Temperature ...................................................... -40 Supply Voltage to Ground Potential (Inputs & V Supply Voltage to Ground Potential (Outputs & D/O Only) -0.3 to +6.0V ...

Page 5

AC Electrical Characteristics Voltage Regulator ...

Page 6

Application Circuit of PT8A2620 ...

Page 7

Email: support@pti.com.cn China: No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China Tel: (86)-21-6485 0576 Asia Pacific: Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong Tel: (852)-2243 3660 U.S.A.: 2380 Bering Drive, San ...

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