PT8A2611WEX [DIODES]
Analog Circuit, CMOS, PDSO16,;
| 型号： | PT8A2611WEX |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Analog Circuit, CMOS, PDSO16, 光电二极管 |
| 文件： | 总14页 (文件大小：139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PT8A2611/2621
PIR Sensor Light Switch Controller
Features
General Description
•
2-stage operational amplifier as filter
The PT8A2611 and PT8A2621 are low power mixed
signal CMOS LSI designed for the automatic lamp
control using PIR sensor as motion detector.
• Built-in noise rejection circuit
• On-chip regulator
• Override function (PT8A2621 only)
• Synchronous with AC 220V/50Hz and 110V/60Hz
• Pulse output (PT8A2611) for TRIAC drive or
level output (PT8A2621) for relay drive
• CDS to enable/disable output
• Adjustable output on time duration
• ON/AUTO/OFF selectable by MODE pin
• Auto-reset if the ZC signal disappears over 3 seconds
• 40 seconds warm-up
With on chip noise filter and voltage regulator, the IC
provides stable operations throughout temperature
range. CDS input to disable day time operation is
desired.
Function Comparison
Override
CDS feedback Output
TRIAC
PT8A2611
PT8A2621
No function Internal
• Quick check mode for initial installation
• Operating voltage: 5V
Twice
With external RELAY
components
(see Fig. 10,
• Stand-by current: 80µA
D9 and R15)
• Package:16-pin DIP and 16-pin SOP
Ordering Information
Applications
Part Number
Package
PT8A2611P / PT8A2621P
Lead free 16 - Pin DIP
• Energy saving auto-switch in Garden, kitchen,
bathroom, corridor, storage or yard
• Auto light in meeting room
Lead free and Green
16 - Pin SOIC
PT8A2611W / PT8A2621W
PT8A2611DE / PT8A2621DE
Die Form
Note: Adding E= Pb-free or Pb-free and Green
Adding X suffix=Tape/Reel
Block Diagram
OP2O
_
OP2N
OP2P
MODE
Mode and CDS
control circuit
Comparator
latch circuit
+
CDS
(Internal CDS
feedback,
for 2611 only)
Voltage
divider
OP1O
OP1P
RELAY
(for 2621 only)
+
_
Control
circuit
Output circuit
OP1N
TRIAC
(for 2611 only)
Regulator
VEE
RST
ZC
delay
oscillator
Delay
circuit
OSCD
OSCS
System
oscillator
Counter
circuit
Zero cross
debounce
PT0091-4
07/06/12
12-07-0007
1
PT8A2611/2621
PIR Sensor Light Switch Controller
Pad Location
Pad Location of PT8A2611DE
1470um
Die No.
OSCD
CDS
ZC OSCS
TRIAC
MODE
VCC
GND
OP2O
VCC
NC
OP2N
OP2P
VEE
RST
OPIP OPIN OPIO
Pad Coordinate
Pad Name
X Coordinate
Y Coordinate
Pad Name
X Coordinate
Y Coordinate
GND
TRIAC
OSCD
OSCS
ZC
CDS
MODE
VCC
570
570
570
65.4
NC
VEE
RST
OP1P
OP1N
OP1O
OP2P
OP2N
OP2O
570
-570
303.9
-44.8
-211.8
-570
-570
-570
-570
-268.6
232.4
-687.2
689.2
689.2
-435.6
-268.6
-101.6
65.4
-101.6
399.4
232.4
689.2
-687.2
-435.6
-687.2
-687.2
570
-378.8
-30.1
570
-197.1
136.9
VCC
Note: Substrate is connected to GND
PT0091-4
07/06/12
12-07-0007
2
PT8A2611/2621
PIR Sensor Light Switch Controller
Pad Location of PT8A2621DE
1470um
Die No.
OSCD
CDS
ZC OSCS
RELAY
MODE
VCC
GND
OP2O
VCC
NC
OP2N
OP2P
VEE
RST
OPIP OPIN OPIO
Pad Coordinate
Pad Name
X Coordinate
Y Coordinate
Pad Name
X Coordinate
Y Coordinate
GND
RELAY
OSCD
OSCS
ZC
CDS
MODE
VCC
570
570
570
65.4
NC
VEE
RST
OP1P
OP1N
OP1O
OP2P
OP2N
OP2O
570
-570
303.9
-44.8
-211.8
-570
-570
-570
-570
-268.6
232.4
-687.2
689.2
689.2
-435.6
-268.6
-101.6
65.4
-101.6
399.4
232.4
689.2
-687.2
-435.6
-687.2
-687.2
570
-378.8
-30.1
570
-197.1
136.9
VCC
Note: Substrate is connected to GND
PT0091-4
07/06/12
12-07-0007
3
PT8A2611/2621
PIR Sensor Light Switch Controller
Pin Assignment
PT8A2611P/PT8A2611W
PT8A2621P/PT8A2621W
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OP2O
OP2N
OP2P
OP1O
OP1N
OP1P
RST
GND
RELAY
OSCD
OSCS
ZC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OP2O
OP2N
OP2P
OP1O
OP1N
OP1P
RST
TRIAC
OSCD
OSCS
ZC
CDS
CDS
MODE
VCC
MODE
VCC
VEE
VEE
Top view
Top view
Pin Description
Pin
Name
Type
Ground Ground
Description
2611 2621
1
1
2
GND
RELAY
TRIAC
OSCD
O
O
RELAY drive output through an external NPN transistor, active high
TRIAC drive two-pulse output, active negative pulse.
2
3
3
4
5
6
I/O
Output timing oscillator I/O, connected to an external RC to adjust output duration.
System oscillator I/O, connected to an external RC to set the system frequency. The system
frequency = 16kHz for normal application.
4
5
6
OSCS
ZC
I/O
I
I
Schmitt input for AC zero crossing detection.
Connected to a CDS voltage divider for daytime/night auto-detection. Low input to this pin
can disable PIR input. CDS is a schmitt trigger input with 5-second input debounce time.
CDS
Mode select, connecting to VCC- output always on, connection GND - output always off,
open - auto detection
7
8
9
7
8
9
MODE
VCC
I
Power Power supply
Internal voltage regulator output, 3.6V with respect to ground. Connected to the drain of
PIR sensor
VEE
O
10
11
12
13
14
15
16
10
11
12
13
14
15
16
RST
I
I
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
OP1P
OP1N
OP1O
OP2P
OP2N
OP2O
I
O
I
Output of first operational amplifier
Non-inverted input of second operational amplifier.
Inverted input of second operational amplifier
Output of second operational amplifier
I
O
PT0091-4
07/06/12
12-07-0007
4
PT8A2611/2621
PIR Sensor Light Switch Controller
OSCS and OSCD Pins
Functional Descriptions
OSCS is a system oscillator I/O pin connected to an external
RC to generate system frequency of 16kHz. OSCD is an output
timing oscillator I/O pin. It’s connected to an external RC to
obtain the desired turn-on duration by selecting various val-
ues of RC or using a variable resistor.FOSCDis the frequency of
OSCD pin, output timing can be caculated as the formula:
TD = 21504/FOSCD
The PT8A2611 and PT8A2621 are CMOS LSI chips designed
for automatic PIR lamp control. They can operate in 2-wire
configuration for triac applications or in 3-wire configuration
for relay applications.
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. The PT8A2611 (or
2621) offers three operating modes (ON, AUTO, OFF) which
can be set through a MODE pin. When the device is working
in AUTO mode, the user can override the mode to switch it to
TEST mode or manual ON mode, or return to the AUTO mode
by switching power switch.
CDS Input Circuit
CDS is a CMOS schmitt trigger input pin. It is used to distin-
guish between day time and night time. When the input volt-
age of CDS is high the PIR input is enabled, when CDS low the
PIR input disabled. The input disable-to-enable debounce
time is 5 seconds. Connect this pin to VCC when not using it.
The CDS input is ignored by PT8A2611when the TRIAC out-
put is active, however, PT8A2621’s CDS can not be ignored
anytime.
Figure 1. System Oscillator
Figure 2. Output Timing Oscillator
TD= 21504 / FOSCD
R
D
R
S
560K
OSCS
OSCD
PT8A2611
/2621
PT8A2611
/2621
C
D
C
S
200P
Figure 3. CDS Input Circuit
Figure 4. CDS Enable Debounce
VCC
Schmitt
Driver
Rp
CDS
CDS
Control
< 5s
CDS Circuit
> 5s
PIREnable
Disable
Enable
CDS
PT8A2611/2621
Table 1. CDS Pin Function
CDS
LOW
HIGH
Status
PIR
Day Time
Night
Disabled
Enabled
PT0091-4
07/06/12
12-07-0007
5
PT8A2611/2621
PIR Sensor Light Switch Controller
The device can be toggled from ON toAUTO by switching the
power switch twice within 3 seconds again (override opera-
tion).
MODE
MODE is a tri-state input pin for operation mode selection.
See the following table 2.
If the chip is overridden to ON and there is no further override
operation, it will return to AUTO automatically after an inter-
nal preset ON time duration (8 hours).
Override Control (for PT8A2621 only): The term override re-
fers to the change of operating mode by switching the power
switch twice within 3 seconds. When the chip is working in the
AUTO mode (MODE pin openned), the output is activated by
a valid PIR trigger signal and the output active duration is con-
trolled by the OSCD oscillation period. The lamp can be switched
to ON from theAUTO mode by either switching the MODE pin
to VCC or switching the power switch twice within 3 seconds.
Note:Flash is only for the TRIAC Rev.
RST Pin
RST is used to reset the device. It is internal pull-high and
active low. The use of CRST can extend the power-on initial
time. If the RST pin is openned (without CRST), the initial
time is 40 seconds. See Figure 6.
Table 2. Operation Modes by MODE Pin
MODE
Status
Operation
Mode
Description
Output is always ON: RELAY pin sends high level for relay driving; TRIAC pulse train output is
synchronized by ZC for triac driving.
VCC
ON
OFF
Output is always OFF: RELAY pin sends low level for relay driving; TRIAC pin sends high level
for triac driving.
GND
Open
Outputs remain in the OFF state until activated by a valid PIR trigger input signal. When working
in the AUTO mode, the device allows override control by switching the ZC signal.
AUTO
Figure 5. Override Timing (for PT8A2621)
Operating Mode
AUTO
ON
AUTO
ON
AUTO
8 hours
ZC
Figure 6. RSTApplication Example
VCC
REST
RST
CRST
GND
PT0091-4
07/06/12
12-07-0007
6
PT8A2611/2621
PIR Sensor Light Switch Controller
In case that the ZC signal disappears more than 3 seconds, the
chip will restart the initialization operation. However, the re-
start initial time is always 40 seconds and cannot be extended
by adding CRST to the RST pin as shown in Figure 4.
Power On Initial
The PIR signal amplifier requires a warm up period after power-
on. The input should be disabled during this period.
Trigger
In the AUTO mode within the first 40 seconds of the initial
time the chip allows override control to enter the quickly in-
stall mode, After 40s of the initial time the chip allows over-
ride control between ON andAUTO. It will remain in the warm
up period if the total initial time has not elapsed after return-
ing toAUTO.
The trigger timing is shown in Figure 7.
Retrigger -- If another signal is attained in trigger hold time,
the circuit will be retriggered, and the trigger hold time will be
started from this time.
Figure 7. Trigger Timing
RST
CDS
5s
Output
Enable
+trigger level
-trigger level
Comparator
Input
>24ms
Comparator
Output
<24ms
(Note1)
Detect
Enable
power on delay time
40s
10s test
enable
Test
Enable
RELAY
TRIAC
ON
ON
pulse out
(Note2)
Notes: 1. The output is activated if the trigger signal conforms to the following criteria:
- More than 3 triggers within 2 seconds,
- A trigger signal sustain duration > 0.34 seconds, and
- 2 triggers within 2 seconds with pulse duration of one > 0.16 seconds.
-The effective comparator output width is 24ms.(Fosc=16KHz)
2. The output duration is set by an external RC connected to the OSCD pin.
PT0091-4
07/06/12
12-07-0007
7
PT8A2611/2621
PIR Sensor Light Switch Controller
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested)
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 ex-
tended periods may affect reliability.
Storage Temperature ...................................................... -40oC to +125oC
Supply Voltage to Ground Potential (Inputs & VCC Only) .... -0.3 to +6.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) -0.3 to +6.0V
DC Input Voltage ................................................................ -0.3 to +6.0V
DC Output Current ........................................................................ 20mA
Power Dissipation....................................................................... 500mW
Recommended Operation Conditions
Sym
VCC
VIH
Description
Min
4.75
0.8VCC
-
Typ
5.0
-
Max
6.0
Units
V
Supply Voltage
Input HIGH Voltage(MODE,RST)
Input LOW Voltage(MODE,RST)
System Oscillator Frequency
Delay Oscillator Frequency
Operation Temperature
-
V
VIL
-
0.2VCC
20.8
19.2
70
V
fSYS
fDOSC
TA
12.8
12.8
-25
16
16
25
kHz
kHz
OC
DC Electrical Characteristics
Sym
Description
Test Conditions
VIH = 4.5V
Min
Typ
Max
0.1
0.1
-
Units
IIH
Input high level leakage current(ZC,CDS)
Input low level leakage currentt(ZC,CDS)
Output Source Current (RELAY, TRIAC)
Output Sink Current (RELAY, TRIAC)
CDS Transfer High Voltage
-0.1
-0.1
-6
-
µΑ
µΑ
mA
mA
V
IIL
VIL = 0.5V
-
IOH
VOH = 4.5V
VOL = 0.5V
-
IOL
15
-
-
VTH1
VTL1
VTH2
VTL2
VTH3
VTL3
VTH4
VTL4
3.0
1.5
2.6
1.0
2.2
1.0
2.2
0.4
3.2
1.7
2.9
1.4
2.4
1.4
2.4
0.6
3.6
2.1
3.2
1.6
2.8
1.6
2.8
0.8
CDS Transfer Low Voltage
V
ZC Transfer High Voltage
V
ZC Transfer Low Voltage
V
OSCS Transfer High Voltage
OSCS Transfer Low Voltage
V
V
OSCD Transfer High Voltage
OSCD Transfer Low Voltage
V
(ZC,)V
Note: These specifications apply for VCC = 5.0V and -25OC ≤ TA ≤ 70OC, unless otherwise specified.
PT0091-4
07/06/12
12-07-0007
8
PT8A2611/2621
PIR Sensor Light Switch Controller
AC Electrical Characteristics
Voltage Regulator
Sym
Description
Test Conditions
No load
Min
3.2
Typ
3.6
Max
4.0
Units
V
VEE
Output Voltage
V
VOP2P
Noninverting input of OP2
No load
1.6
1.8
2.0
Line Regulation
Load Regulation
4.5V ≤ VCC ≤ 5.5V, IL = 1mA
VCC = 5V, 0.5mA ≤ IL ≤ 2mA
VCC = 5V
-
-
30
60
-
50
100
-
mV
mV
mA
∆VΟ
∆VLDR
IL
Regulator Output Current
4
Operational Amplifier and Window Comparator
Sym
BW
VTH
VTL
Description
Test Conditions
-
Min
10
Typ
-
Max
-
Units
kHz
V
3dB Bandwidth
VCC = 5V
VCC = 5V
1.9
1.4
2.05
1.55
2.2
1.7
Windows Comparator Threshold
V
PT0091-4
07/06/12
12-07-0007
9
PT8A2611/2621
PIR Sensor Light Switch Controller
Oscillator and ZC Input Pulse and Trigger Output Pulse
Sym
fOSC
tZR
Description
Test Conditions
Min
12.8
-
Typ
16
30
30
20
1
Max
Units
kHz
ns
20.8
Oscillator Frequency
ZC Pulse Rise Time
ZC Pulse Fall Time
ZC Pulse Period
100
100
22.2
-
tZF
-
ns
tZP
15.1
0.8
-
ms
ms
ns
VCC= 5V, RS = 560Ω,
CS = 200pF, see above fig1
tZW
tOR
tOF
ZC Pulse Width
TRIAC Pulse Rise Time
TRIAC Pulse Fall Time
TRIAC Pulse Period
TRIAC Pulse Width
30
30
10
62.5
100
100
11
-
ns
tOP
6.6
ms
µs
tOW
48
76
Figure 8. Timing Diagram
tZR
tZF
ZC
tZW
tZP
tOF
TRIAC
tOR
tOW
tOP
Power Dissipation
Sym
Description
Test Conditions
Min
Typ
80
Max
100
80
Units
µA
VCC = 5V, RS = 560kΩ ,CS=200P,
RD = 560kΩ , CD = 200P,
other input pins = GND, all
outputs float. see fig1,2
ICC
Power Supply Current
-
-
VCC = 5V, All Input Pins = GND,
all outputs float.
ICCQ
Quiescent Power Supply Current
60
µA
PT0091-4
07/06/12
12-07-0007
10
PT8A2611/2621
PIR Sensor Light Switch Controller
Typical Application Circuits
Figure 9. Two-Wire Application Circuit of PT8A2611
PT0091-4
07/06/12
12-07-0007
11
PT8A2611/2621
PIR Sensor Light Switch Controller
Figure 10. Three-Wire Application Circuit of PT8A2621
ON
AUTO
OFF
PT0091-4
07/06/12
12-07-0007
12
PT8A2611/2621
PIR Sensor Light Switch Controller
Mechanical Information
16-pin SOIC
PT0091-4
07/06/12
12-07-0007
13
PT8A2611/2621
PIR Sensor Light Switch Controller
16-pin DIP
Pericom Semiconductor Corparation 1-800-435-2336 www.pericom.com
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.
PT0091-4
07/06/12
12-07-0007
14
相关型号：
©2020 ICPDF网 联系我们和版权申明