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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Pad Location
Pad Location of PT8A2611DE
1470um
Die No.
CDS
ZC
OSCS
OSCD TRIAC
MODE VCC OP2O VCC NC OP2N OP2P VEE RST OPIP OPIN OPIO 1710um GND
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 TRIAC 570 OSCD 570 OSCS 570 ZC -378.8 CDS -30.1 MODE 570 VCC -197.1 VCC 136.9 Note: Substrate is connected to GND
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Pad Location of PT8A2621DE
1470um
Die No.
CDS
ZC
OSCS
OSCD RELAY
MODE VCC OP2O VCC NC OP2N OP2P VEE RST OPIP OPIN OPIO 1710um GND
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 RELAY 570 OSCD 570 OSCS 570 ZC -378.8 CDS -30.1 MODE 570 V CC -197.1 V CC 136.9 Note: Substrate is connected to GND
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Pin Assignment
PT8A2611P/PT8A2611W GND TRIAC OSCD OSCS ZC CDS MODE V CC 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 OP2O OP2N OP2P OP1O OP1N OP1P RST V EE PT8A2621P/PT8A2621W GND RELAY OSCD OSCS ZC CDS MODE V CC 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 OP2O OP2N OP2P OP1O OP1N OP1P RST V EE
Top view
Top view
Pin Description
Pin Name 2611 2621 1 1 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND RELAY TRIAC OSCD OSCS ZC CDS MODE V CC VEE RST OP1P OP1N OP1O OP2P OP2N OP2O Ground Ground O O I/O I/O I I I Power O I I I O I I O RELAY drive output through an external NPN transistor, active high TRIAC drive two-pulse output, active negative pulse. 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. 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. Mode select, connecting to VCC- output always on, connection GND - output always off, open - auto detection 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. Inverted input of second operational amplifier Output of second operational amplifier Type Description
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Functional Descriptions
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.
OSCS and OSCD Pins
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 values of RC or using a variable resistor.FOSCDis the frequency of OSCD pin, output timing can be caculated as the formula: TD = 21504/FOSCD
CDS Input Circuit
CDS is a CMOS schmitt trigger input pin. It is used to distinguish between day time and night time. When the input voltage 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 output is active, however, PT8A2621's CDS can not be ignored anytime. Figure 2. Output Timing Oscillator TD = 21504 / F OSCD
Figure 1. System Oscillator
RS
560K OSCS PT8A2611 /2621 200P
RD
OSCD PT8A2611 /2621
CS
CD
Figure 3. CDS Input Circuit
VCC Rp Schmitt Driver CDS Control CDS Circuit PT8A2611/2621
Figure 4. CDS Enable Debounce
CDS < 5s > 5s PIR Enable Disable Enable
CDS
Table 1. CDS Pin Function CDS LOW HIGH
PT0091(04/03)
Status Day Time Night
PIR Disabled Enabled
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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MODE
MODE is a tri-state input pin for operation mode selection. See the following table 2. Override Control (for PT8A2621 only): The term "override" refers 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 controlled by the OSCD oscillation period. The lamp can be switched to ON from the AUTO mode by either switching the MODE pin to VCC or switching the power switch twice within 3 Table 2. Operation Modes by MODE Pin MODE Status VCC GND Open Operation Mode ON OFF AUTO
seconds. The device can be toggled from ON to AUTO by switching the power switch twice within 3 seconds again (override operation). If the chip is overridden to ON and there is no further override operation, it will return to AUTO automatically after an internal preset ON time duration (8 hours). 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.
Description Output is always ON: RELAY pin sends high level for relay driving; TRIAC pulse train output is synchronized by ZC for triac driving. Output is always OFF: RELAY pin sends low level for relay driving; TRIAC pin sends high level for triac driving. 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.
Figure 5. Override Timing (for PT8A2621)
Operating Mode
AUTO
ON
AUTO
ON 8 hours
AUTO
ZC
Figure 6. RST Application Example
V CC REST
RST CRST GND
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Power On Initial The PIR signal amplifier requires a warm up period after poweron. The input should be disabled during this period. In the AUTO mode within the first 40 seconds of the initial time the chip allows override control to enter the quickly install mode, After 40s of the initial time the chip allows override control between ON and AUTO. It will remain in the warm up period if the total initial time has not elapsed after returning to AUTO. Figure 7. Trigger Timing
In case that the ZC signal disappears more than 3 seconds, the chip will restart the initialization operation. However, the restart initial time is always 40 seconds and cannot be extended by adding C RST to the RST pin as shown in Figure 4. Trigger 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.
RST CDS Output Enable Comparator Input
>24ms +trigger level -trigger level 5s
Comparator Output
<24ms
(Note1)
Detect Enable Test Enable RELAY TRIAC
power on delay time 40s 10s test enable
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.
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested) Note: Stresses greater than those listed under MAXIMUM Storage Temperature ............................................................-40oC to +125oC RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Inputs & V CC Only) .... -0.3 to +6.0V device. This is a stress rating only and functional Supply Voltage to Ground Potential (Outputs & D/O Only) -0.3 to +6.0V operation of the device at these or any other condiDC Input Voltage ....................................................................... -0.3 to +6.0V tions above those indicated in the operational secDC Output Current .................................................................................20mA tions of this specification is not implied. Exposure Power Dissipation .............................................................................. 500mW to absolute maximum rating conditions for extended periods may affect reliability.
Recommended Operation Conditions
Sym VCC VIH VIL fSYS fDOSC TA Description Supply Voltage Input HIGH Voltage(MODE,RST) Input LOW Voltage(MODE,RST) System Oscillator Frequency Delay Oscillator Frequency Operation Temperature Min 4.75 0.8VCC 12.8 12.8 -25 Typ 5.0 16 16 25 Max 6.0 0.2VCC 19.2 19.2 70 Units V V V kHz kHz
O
C
DC Electrical Characteristics
Sym IIH IIL IOH IOL VTH1 VTL1 VTH2 VTL2 VTH3 V TL3 VTH4 VTL4 Description 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 CDS Transfer Low Voltage ZC Transfer High Voltage ZC Transfer Low Voltage OSCS Transfer High Voltage OSCS Transfer Low Voltage OSCD Transfer High Voltage OSCD Transfer Low Voltage Test Conditions VIH = 4.5V VIL = 0.5V VOH = 4.5V VOL = 0.5V Min -0.1 -0.1 -6 15 3.0 1.5 2.6 1.0 2.2 1.0 2.2 0.4 Typ 3.2 1.7 2.9 1.4 2.4 1.4 2.4 0.6 Max 0.1 0.1 3.6 2.1 3.2 1.6 2.8 1.6 2.8 0.8 Units mA mA V V V V V V V (ZC,)V
Note: These specifications apply for VCC = 5.0V and -25OC TA 70 OC, unless otherwise specified.
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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AC Electrical Characteristics
Voltage Regulator
Sym VEE VOP2P V V LDR IL Description Output Voltage Noninverting input of OP2 Line Regulation Load Regulation Regulator Output Current Test Conditions No load No load 4.5V VCC 5.5V, IL = 1mA VCC = 5V, 0.5mA I L 2mA VCC = 5V Min 3.2 1.6 4 Typ 3.6 1.8 30 60 Max 4.0 2.0 50 100 Units V V
mV mV mA
Operational Amplifier and Window Comparator
Sym BW VTH VTL Description 3dB Bandwidth Windows Comparator Threshold Test Conditions VCC = 5V VCC = 5V Min 10 1.9 1.4 Typ 2.05 1.55 Max 2.2 1.7 Units kHz V V
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Oscillator and ZC Input Pulse and Trigger Output Pulse
Sym fOSC tZR t ZF t ZP tZW t OR tOF tOP tOW Description Oscillator Frequency ZC Pulse Rise Time ZC Pulse Fall Time ZC Pulse Period ZC Pulse Width TRIAC Pulse Rise Time TRIAC Pulse Fall Time TRIAC Pulse Period TRIAC Pulse Width V CC= 5V, RS = 560, CS = 200pF, see above fig1 Test Conditions Min 12.8 15.1 0.8 6.6 52 Typ 16 30 30 20 1 30 30 10 62.5 Max 19.2 100 100 22.2 100 100 11 76 Units kHz ns ns ms ms ns ns ms
s
Figure 8. Timing Diagram tZR ZC tZW tZP tOF TRIAC tOW tOP tOR tZF
Power Dissipation
Sym Description Test Conditions VCC = 5V, RS = 560k ,CS=200P, R D = 560k , CD = 200P, other input pins = GND, all outputs float. see fig1,2 VCC = 5V, All Input Pins = GND, all outputs float. Min Typ Max Units
I CC
Power Supply Current
-
80
100
A
ICCQ
Quiescent Power Supply Current
-
60
80
A
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Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Typical Application Circuits
Figure 9. Two-Wire Application Circuit of PT8A2611
22UF/16V
20 3 C2
R4 1M
1M 203 C5
10UF/16V
D S G MODE 8V CC OSCS C4 100UF/16V 12 11 OP1O OP1N OP1P RST 10 9 VE E CDS ZC
MODE
56K C13 203 SD6222 6.2V 1N4007 1 470UF/16V C11 TRIAC 3 AC 110V~230V R1 20 K D2 CDS D1 R10 100UF/16V Q1 68/2W C10 0.68U/350V 1N4007 1N4148 R13 C1
R6
16
15
14
C9
OP2O
OP2N
PT8A2611
TRIAC
1
2
3
OSCD
GND
OP2P
13
5
6
3900P
C7
4
7
C3 201
1M
R 8 560 K
R7
1N4007 D3
R9
1M
C8
104
ON/OFF Test mode
20~100 W
PT0091(04/03)
SW1
LAMP
2
R14
200K
R9
D5
R2 2.4M
D4
OFF AUT O ON
SW2
R3
C6
22UF/ 16V
R5 22K
R12 22K
C12
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PT0091(04/03)
IN4148 K1 D1 Q1 R11 1M D9 C3 C6 1N4148 2 RELAY OSCD OSCS ZC CDS MODE V CC PT8A2621 C4 D S G U1 SD6222 VEE 9 100UF/16V RST 10 R2 56K 203 C1 22UF/16V C12 R3 22K OP1P 11 OP1N 12 OP1O 13 10UF/16V 203 C2 OP2P 14 C10 OP2N 3 4 5 6 7 MODE 8 D5 SW2 ON AUTO OFF R7 D4 R12 3.3K 2.4M 1N4007 24V D2 24V D3 1N4148 D7 R13 5.1V R1 C9 CDS 100UF/35V 470UF/16V C5 D6 1N4007 15 203 C7 R5 22K R15 R9 560K R8 1M R10 1M 201 C8 GND OP2O 1 16 22UF/16V R14 4.7K 3900P 9014
20~100W
LAMP
Figure 10. Three-Wire Application Circuit of PT8A2621
C13 3.3nf/63V R6 68/2W
R4 1M
ON/OFF OVERRIDE
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12
SW1
C11 0.68U/350V
AC 110V~230V
Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
Ver:3
Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller
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Notes
Pericom Technology Inc.
Email: support@pti.com.cn China: Asia Pacific: U.S.A.: Web Site: www.pti.com.cn, www.pti-ic.com No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China Tel: (86)-21-6485 0576 Fax: (86)-21-6485 2181 Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong Tel: (852)-2243 3660 Fax: (852)- 2243 3667 2380 Bering Drive, San Jose, California 95131, 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. PT0091(04/03)
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Ver:3

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