PT8A263
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Features
Low standby current
2 stage op-amp for filtering
On-chip oscillator
On-chip voltage regulator
4 different operation modes selected by SEL1 &
SEL2
Low battery detector
Built-in noise rejection circuit
LED output indicating warm-up period, low battery
and PIR trigger signal
2 outputs to drive external devices such as speech
ICs, high pitch piezo buzzer or door bell ICs
Lead free DIP-16 and SOIC-16 package
Door chime applications with external door bell
ICs
Description
PIR Alarm Controller
PIR Alarm Controller
PT8A263 is a fully integrated mixed-signal CMOS LSI
chip designed for the low cost applications of PIR
(passive Infrared) alarm control system. The analog
front-end is based on PTI’s proven PIR controller IC
(PT8A261). The multipurpose alarm IC can be widely
used in a variety of applications ranging from household
security, portable alarm to toys.
PT8A263 is also equipped with op-amps for filtering, a
comparator, timer, low battery detector, control circuit,
voltage regulator and oscillator.
Applications
Low cost security system sensor components
Motion sensor to drive low cost speech chip for
alarm alert
Motion detect alarm with high pitch buzzer alert
Block Diagram
OP2O
OP2N
OP2P
_
+
Comparator
Noise
rejection
Voltage
divider
+
_
Regulator
circuit
Mode
control
circuit
SEL1
SEL2
OUT1
Control circuit
OUT2
LED
GND
V
CC
System
oscillator
RST
OP1O
OP1P
OP1N
V
EE
Low Battery
Detector
OSC
12-07-0006
1
PT0084-6
07/06/12/12
PT8A263
PIR Alarm Controller
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Pin Configuration
GND
1
16 OP2O
15 OP2N
14 OP2P
LED 2
OSC 3
OUT1 4
OUT2
SEL1
SEL2
VCC
5
6
7
8
PT8A263
13 OP1O
12 OP1N
11 OP1P
10 RST
9 VEE
Pin Description
Name
GND
LED
OSC
OUT1,
OUT2
SEL1,
SEL2
VCC
VEE
RST
OP1P
OP1N
OP1O
OP2P
OP3N
OP2O
Pin No.
1
2
3
4, 5
6, 7
8
9
10
11
12
13
14
15
16
Type
Ground
O
I
O
O
Power
O
I
I
I
O
I
I
O
Description
Ground
LED output: indicates PIR trigger signal. It is an active high signal with 125Hz
pulse in normal mode.
Input of oscillator: external resistor or capacitor changeable, resistor pull up,
capacitor pull down, 16kHz for normal application
Outputs to drive external devices
Operating mode selection
Power supply
Internal voltage regulator output: 3.6V with respect to ground. Connected to the
drain of PIR sensor
Chip reset input: active low, kept floating or connected an RC network
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
Non-inverted input of second operational amplifier, 1.8V internally, 2.2uF
capacitor pull down
Inverted input of second operational amplifier
Output of second operational amplifier
12-07-0006
2
PT0084-6
07/06/12/12
PT8A263
PIR Alarm Controller
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Pad Location
1470um
Die No.
SEL1
OUT2 OUT1
OSC
LED
SEL2
V
CC
OP2O
V
CC
NC
OP2N
OP2P
VEE
RST
OPIP OPIN OPIO
Pad Coordinate
Pad Name
X Coordinate
Y Coordinate
65.4
-101.6
399.4
232.4
689.2
-687.2
-435.6
-687.2
-687.2
Pad Name
NC
V
EE
RST
OP1P
OP1N
OP1O
OP2P
OP2N
OP2O
X Coordinate
570
-570
303.9
-44.8
-211.8
-570
-570
-570
-570
Y Coordinate
-268.6
232.4
-687.2
689.2
689.2
-435.6
-268.6
-101.6
65.4
GND
570
LED
570
OSC
570
OUT1
570
OUT2
-378.8
SEL1
-30.1
SEL2
570
V
CC
-197.1
V
CC
136.9
Note:
Substrate is connected to GND
12-07-0006
3
PT0084-6
1710um
GND
07/06/12/12
PT8A263
PIR Alarm Controller
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Maximum Ratings
Storage Temperature ................................................................................... -40oC to +125oC
Ambient Temperature with Power applied...............................................-20oC to +85oC
Supply Voltage to Ground Potential (Inputs & V
CC
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 condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
Recommended operation conditions
Sym
V
CC
V
IH
V
IL
f
SYS
T
A
Parameter
Supply Voltage
Input HIGH Voltage
Input LOW Voltage
System Oscillator Frequency
Operating temperature
Min
4.75
0.8 V
CC
-
12.8
-25
Typ
5.0
-
-
16
-
Max
6.0
-
0.2V
CC
19.2
70
Unit
V
V
V
kHz
°
C
DC Electrical Characteristics
Sym
I
IH
I
IL
I
OH
I
OL
V
TH
V
TL
Description
Input high level current - SEL1 and SEL2
Input high level current - RST
Input high level current - OSC
Input low level current - SEL1, SEL2, OSC
Input low level current - OSC
Output Source Current (OUT1, OUT2)
Output Sink Current (OUT1, OUT2)
OSCS Transfer High Voltage
OSCS Transfer Low Voltage
Test Conditions
V
IH
= 4.5V
V
IL
= 0.5V
V
OH
= 4.5V
V
OL
= 0.5V
-
-
Min
-1
-1
400
-1
-10
-6
15
2.0
1.0
Typ
-
-
-
-
-
-12
55
2.3
1.2
Max
1
-10
550
1
-20
-
-
2.8
1.6
Units
A
A
A
A
A
mA
mA
V
V
Note:
These specifications apply for VCC = 5.0V and -25OC £TA £70OC, unless otherwise specified.
AC Electrical Characteristics
Voltage Regulator
Sym
Description
V
EE
Output Voltage
OP2P Noninverting input of OP2
Line Regulation
Vo
Load Regulation
V
LDR
I
L
Maximum Current
Test Conditions
No load
No load
4.5V ≤ VCC ≤ 5.5V, I
L
= 1mA C
filter
= 4.7uF (between V
EE
pin and GND pin)
VCC = 5V, 0.5mA ≤ IL ≤ 2mA C
filter
= 4.7uF (between V
EE
pin and GND pin)
V
CC
= 5V
Min
3.4
1.6
-
-
-4
Typ
3.6
1.8
1.0
10
-
Max
3.8
2.0
50
100
-
Units
V
V
mV
mV
mA
Operational Amplifier and Window Comparator
Sym
UGBW
V
TH
V
TL
Description
Unit Gain B and width
Windows Comparator Threshold
Test Conditions
-
V
CC
= 5V
V
CC
= 5V
Min
10
1.9
1.4
Typ
-
2.05
1.55
Max
-
2.2
1.7
Units
kHz
V
V
12-07-0006
4
PT0084-6
07/06/12/12
PT8A263
PIR Alarm Controller
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Oscillator
Sym
f
OSCS
T
OSCS
Description
Oscillator Frequency
Oscillator period
Test Conditions
V
CC
= 5V, R
S
=560k, C
S
=200p
-
Min
12.8
52
Typ
16
62.5
Max
19.2
78
Units
kHz
s
Power Dissipation
Sym
I
CC
I
CCQ
Description
Power Supply Current
Quiescent Supply
Current
Test Conditions
V
CC
= 5V, f
OSCS
=16kHz R
S
=560k, C
S
=200p, Input Pins=GND, all output pins
floating
V
CC
= 5V, Input Pins=GND, all output pins floating
Min Typ
-
-
80
70
Max Units
100
-
A
A
Low Battery Detector
Sym
V
LBTH
Description
Low Battery Detector Threshold Voltage
Test Conditions
V
CC
= 5V
Min
3.50
Typ
3.80
Max
4.01
Units
V
12-07-0006
5
PT0084-6
07/06/12/12
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