Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pad Location Pad Location of PT8A261DE 1470um Die No. CDS ZC OSCD OSCS TRIAC GND VCC OP2O 1710um MODE VCC OP2N NC OP2P VEE RST OPIP OPIN OPIO Pad Coordinate Pad Name X Coordinate 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 PT0075(04/03) Y 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 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 2 Ver:5 Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pad Location of PT8A262DE 1470um Die No. CDS ZC OSCD OSCS RELAY GND VCC OP2O 1710um MODE VCC OP2N NC OP2P VEE RST OPIP OPIN OPIO Pad Coordinate Pad Name X Coordinate GND 570 RELAY 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 PT0075(04/03) Y 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 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 3 Ver:5 Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Assignment Figure 2 PT8A261P/PT8A261W 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 PT8A262P/PT8A262W OP2O OP2N OP2P OP1O OP1N OP1P RST V EE GND RELAY OSCD OSCS ZC CDS MODE V CC Top view 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 Pin Description Table 1 Pin/Pad Name Type Description 261 262 1 1 GND 2 RELAY O RELAY drive output through an external NPN transistor, active high TRIAC O TRIAC drive two-pulse output, active negative pulse. 2 Ground Ground 3 3 OSCD I/O Output timing oscillator I/O, connected to an external RC to adjust output duration. 4 4 OSCS I/O System oscillator I/O, connected to an external RC to set the system frequency. The system frequency = 16kHz for normal application. 5 5 ZC I Schmitt input for AC zero crossing detection. 6 6 CDS I 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. 7 7 MODE I Mode select, connecting to VCC- output always on, connection GND - output always off, open - auto detection 8 8 V CC Power 9 9 VEE O Internal voltage regulator output, 3.6V with respect to ground. Connected to the drain of PIR sensor 10 10 RST I Chip reset input, active low, kept floating or connected an RC network 11 11 OP1P I Non-inverted input of first operational amplifier, connected directly to source of PIR sensor 12 12 OP1N I Inverted input of first operational amplifier 13 13 OP1O O Output of first operational amplifier 14 14 OP2P I Non-inverted input of second operational amplifier. 15 15 OP2N I Inverted input of second operational amplifier 16 16 OP2O O Output of second operational amplifier PT0075(04/03) Power supply 4 Ver:5 Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Functional Descriptions OSCS and OSCD Pins The PT8A261 and PT8A262 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. 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.FOSCD is the frequency of OSCD pin, output timing can be caculated as the formula: TD = 21504/FOSCD The device consists of operational amplifiers, a comparator, timer, a zero crossing detector, control circuit, a voltage regulator, a system oscillator, and an output timing oscillator. CDS Input Circuit 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 PT8A261 (or 262) 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 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 when the TRIAC or RELAY output is active. Figure 3. System Oscillator Figure 4. Output Timing Oscillator TD = 21504/F OSCD RS CS RD 560K OSCS PT8A261/ 262 OSCD CD 200P Table 2. CDS Pin Function Figure 5. CDS Input Circuit V CC Rp Schmitt Driver CDS CDS PT8A261/ 262 Control CDS Circuit CDS Status PIR LOW Day Time Disabled HIGH Night Enabled PT8A261/262 Figure 6. CDS Enable Debounce CDS < 5s > 5s PIR Enable PT0075(04/03) Disable 5 Enable Ver:5 Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| MODE vice can be toggled from ON to AUTO by switching the power switch twice within 3 seconds again (override operation). MODE is a tri-state input pin for operation mode selection. See the following table 3. 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). Override Control: 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 seconds. The de- The override operation will cause the lamp flash (for TRIAC version only). It will flash 3 times at 1Hz rate when changing AUTO mode to other mode, and flash 3 times at 2Hz rate when returning to AUTO mode. But no flash if mode is changed by switching the MODE switch. See Figure 7 for override timing. Table 3. Operation Modes by MODE Pin MODE Status Operation Mode Description VCC ON Output is always ON: RELAY pin sends high level for relay driving; TRIAC pulse train output is synchronized by ZC for triac driving. GND OFF Output is always OFF: RELAY pin sends low level for relay driving; TRIAC pin sends high level for triac driving. Open AUTO 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 7. Override Timing Operating Mode AUTO flash flash flash ON AUTO flash ON AUTO 8 hours ZC Flash is only for TRIAC version Figure 8. RST Application Example 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 8. VCC REST RST CRST GND PT0075(04/03) 6 Ver:5 Data Sheet PT8A261/262 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 restart initial time is always 40 seconds and cannot be extended by adding C RST to the RST pin as shown in Figure 6. Power On Initial The PIR signal amplifier requires a warm up period after poweron. The input should be disabled during this period. Trigger In the AUTO mode within the first 10 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. The trigger timing is shown in Figure 9. Retrigger -- If another signal is attained in trigger hold time, the circuit will be retriggered, and the trigger hold time will be restarted from this time. Figure 9. Trigger Timing RST CDS 5s Output Enable Comparator Input +trigger level -trigger level >24ms Comparator Output <24ms Detect Enable Test Enable (Note1) power on delay time 40s 10s test enable RELAY ON TRIAC 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. PT0075(04/03) 7 Ver:5 Data Sheet PT8A261/262 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 Storage Temperature ............................................................-40oC to +125oC RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Inputs & VCC 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 Description Min Typ Max Units VCC Supply Voltage 4.75 5.0 6.0 V VIH Input HIGH Voltage (MODE,RST) 0.8VCC - - V VIL Input LOW Voltage (MODE,RST) - - 0.2VCC V fSYS System Oscillator Frequency 12.8 16 19.2 kHz fDOSC Delay Oscillator Frequency 12.8 16 19.2 kHz TA Operation Temperature -25 25 70 O C DC Electrical Characteristics Sym Description Test Conditions Min Typ Max Units IIH Input high level leakage current(ZC,CDS) VIH = 4.5V -0.1 - 0.1 µΑ IIL Input low level leakage current(ZC,CDS) VIL = 0.5V -0.1 - 0.1 µΑ IOH Output Source Current (RELAY, TRIAC) VOH = 4.5V -6 - - mA IOL Output Sink Current (RELAY, TRIAC) VOL = 0.5V 15 - - mA VTH1 CDS Transfer High Voltage 3.0 3.2 3.6 V VTL1 CDS Transfer Low Voltage 1.5 1.7 2.1 V VTH2 ZC Transfer High Voltage 2.6 2.9 3.2 V VTL2 ZC Transfer Low Voltage 1.0 1.4 1.6 V VTH3 OSCS Transfer High Voltage 2.2 2.4 2.8 V V TL3 OSCS Transfer Low Voltage 1.0 1.4 1.6 V VTH4 OSCD Transfer High Voltage 2.2 2.4 2.8 V VTL4 OSCD Transfer Low Voltage 0.4 0.6 0.8 V Note: These specifications apply for VCC = 5.0V and -25OC ≤ TA ≤ 70 OC, unless otherwise specified. PT0075(04/03) 8 Ver:5 Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| AC Electrical Characteristics Voltage Regulator Sym Description Test Conditions Min Typ Max Units VEE Output Voltage No load 3.2 3.6 4.0 VOP2P Noninverting input of OP2 No load 1.6 1.8 2.0 ∆VΟ Line Regulation 4.5V ≤ VCC ≤ 5.5V, IL = 1mA - 30 50 mV ∆V LDR Load Regulation VCC = 5V, 0.5mA ≤ I L ≤ 2mA - 60 100 mV IL Regulator Output Current VCC = 5V 4 - - mA V V Operational Amplifier and Window Comparator Sym Description Test Conditions Min Typ Max Units BW 3dB Bandwidth - 10 - - kHz VCC = 5V 1.9 2.05 2.2 V VCC = 5V 1.4 1.55 1.7 V VTH VTL PT0075(04/03) Windows Comparator Threshold 9 Ver:5 Data Sheet PT8A261/262 PIR Sensor Light Switch Controller |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Oscillator and ZC Input Pulse and Trigger Output Pulse Sym Description fOSC Test Conditions Min Typ Max Units Oscillator Frequency 12.8 16 19.2 kHz tZR ZC Pulse Rise Time - 30 100 ns t ZF ZC Pulse Fall Time - 30 100 ns t ZP ZC Pulse Period 15.1 20 22.2 ms tZW ZC Pulse Width 0.8 1 - ms t OR TRIAC Pulse Rise Time - 30 100 ns tOF TRIAC Pulse Fall Time - 30 100 ns tOP TRIAC Pulse Period 6.6 10 11 ms tOW TRIAC Pulse Width 52 62.5 76 µs V CC= 5V, RS = 560 Ω, CS = 200pF, see above fig 3 Figure 10. Timing Diagram tZR ZC tZF tZW tZP tOF tOR TRIAC tOW tOP Power Dissipation Sym Description Test Conditions Min Typ Max Units I CC Power Supply Current VCC = 5V, RS = 560kΩ ,CS=200P, R D = 560k Ω , CD = 200P, other input pins = GND, all outputs float. see fig 3,4 - 80 100 µA ICCQ Quiescent Power Supply Current VCC = 5V, All Input Pins = GND, all outputs float. - 60 80 µA PT0075(04/03) 10 Ver:5 Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Typical Application Circuits 56K C13 203 R3 100UF/16V C1 SW2 6.2 V CDS R13 D1 1N4007 R1 20 K AC 110V~230V TRIAC Q1 1 3 D2 0.68U/350V C11 1N4007 R14 2 68/2W D5 C10 R9 200K 1N4148 R10 D4 R2 2.4M 1M 470UF/16V OF F AUTO ON R 8 560K R9 1N4007 D3 104 LAMP 20~100 W ON/OFF OVERRIDE SW1 SD6222 D S G C4 100UF/16V RST 10 9 VE E OP1P CDS 7 MODE 6 MODE 8 V CC 11 12 OP1N 5 ZC OSCS OSCD 4 1M R7 C3 201 C8 22UF/ 16V C12 R12 22K R4 1M 10UF/16V 13 OP2P OP1O C9 14 15 OP2N TRIAC 3 2 1 GND OP2O 16 R6 PT8A261 C7 3900P C2 203 22UF/16V 203 C5 1M C6 R5 22K Figure 11. Two-Wire Application Circuit of PT8A261 PT0075(04/03) 11 Ver:5 PT0075(04/03) 12 ON/OFF OVERRIDE 1M R8 1N4007 D5 Q1 C5 1N4148 D4 100UF/35V D6 1N4007 24V D3 24V D2 68/2W R6 C13 3.3nf/63V K1 D1 IN4148 R13 3.3K CDS R1 2.4M R7 R9 560K R10 1M R14 4.7K R12 9014 201 C3 SW2 MODE C6 3900P D7 5.1V ON SW1 AC 110V~230V C11 0.68U/350V LAMP 20~100W V CC MODE CDS ZC OSCS OSCD RELAY GND 470UF/16V C9 8 7 6 5 4 3 2 1 9 C4 100UF/16V V EE RST 10 OP1P 11 OP1N 12 OP1O 13 OP2P 14 OP2N 15 OP2O 16 PT8A262 SD6222 D S G C6 C13 203 56K R3 C2 203 22UF/16V 10UF/16V C10 203 C5 1M R6 22UF/16V C12 R12 22K R4 1M R5 22K Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Figure 12. Three-Wire Application Circuit of PT8A262 AUTO OFF Ver:5 Data Sheet PT8A261/262 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Notes Pericom Technology Inc. Email: [email protected] Web Site: www.pti.com.cn, www.pti-ic.com China: No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China Tel: (86)-21-6485 0576 Fax: (86)-21-6485 2181 Asia Pacific: Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong Tel: (852)-2243 3660 Fax: (852)- 2243 3667 U.S.A.: 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. PT0075(04/03) 13 Ver:5