PT8A261PEX

PT8A261/262 PIR Sensor Light Switch Controller Features • • • • • • • • • • • • • • General Description 2-stage operational amplifier as filter Built-in noise rejection circuit On-chip regulator Override function Synchronous with AC 220V/50Hz and 110V/60Hz Pulse output (PT8A261) for TRIAC drive or level output (PT8A262) 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 Quick check mode for initial installation Operating voltage: 5V Stand-by current: 80µA The PT8A261 and PT8A262 are low power mixed signal CMOS LSI designed for the automatic lamp control using PIR sensor as motion detector. 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. Applications • Energy saving auto-switch in Garden, kitchen, bathroom, corridor, storage or yard • Auto light in meeting room Ordering Information Block Diagram Pa r t N umbe r Pa ck a ge PT8A261PE/PT8A262PE Lead free 16 - Pin PDIP PT8A261WE/PT8A262WE Lead free and Green 16 - Pin SO IC PT8A261DE / PT8A262DE Die Form Note: Adding X suffix=Tape/Reel OP2O OP2N OP2P _ + OP1N latch circuit Mode and CDS control circuit Voltage divider OP1O OP1P Comparator Control circuit + _ Output circuit MODE CDS RELAY (for 262 only) TRIAC (for 261 only) Regulator VEE 12-07-0007 OSCD delay oscillator Delay circuit OSCS System oscillator Counter circuit 1 RST Zero cross debounce ZC PT0075-5 07/06/2012 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 12-07-0007 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 PT0075-5 07/06/2012 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 12-07-0007 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 PT0075-5 07/06/2012 PT8A261/262 PIR Sensor Light Switch Controller Pin Assignment Figure 2 PT8A261P/PT8A261W GND TRIAC OSCD OSCS ZC CDS MODE VCC 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 VEE GND RELAY OSCD OSCS ZC CDS MODE VCC 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 VEE Top view Pin Description Table 1 P in /Pa d Na me Descr ip t ion Typ e 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 VCC 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 12-07-0007 Power supply 4 PT0075-5 07/06/2012 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/FOSCD RS CS RD 560K OSCS PT8A261/ 262 OSCD CD 200P Figure 5. CDS Input Circuit Table 2. CDS Pin Function VCC Rp Schmitt Driver CDS CDS PT8A261/ 262 Control CDS Circuit C DS St a t u s PIR L OW Day Time Disabled HI GH Night Enabled PT8A261/262 Figure 6. CDS Enable Debounce CDS < 5s > 5s PIREnable 12-07-0007 Disable 5 Enable PT0075-5 07/06/2012 PT8A261/262 PIR Sensor Light Switch Controller vice can be toggled from ON to AUTO by switching the power switch twice within 3 seconds again (override operation). MODE 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 MO DE St a t u s O p er a t ion Mod e Descr ip t ion 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 12-07-0007 6 PT0075-5 07/06/2012 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 CRST 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 +trigger level Comparator Input -trigger level >24ms Comparator Output 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. 12-07-0007 7 PT0075-5 07/06/2012 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 o o Storage Temperature ...................................................... -40 C to +125 C 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 Descr ip t ion Min Typ Ma x Un it s 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 Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s 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 VTL3 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 ≤ 70OC, unless otherwise specified. 12-07-0007 8 PT0075-5 07/06/2012 PT8A261/262 PIR Sensor Light Switch Controller AC Electrical Characteristics Voltage Regulator Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s 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 ∆VLDR Load Regulation VCC = 5V, 0.5mA ≤ IL ≤ 2mA - 60 100 mV IL Regulator Output Current VCC = 5V 4 - - mA V V Operational Amplifier and Window Comparator Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s 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 12-07-0007 Windows Comparator Threshold 9 PT0075-5 07/06/2012 PT8A261/262 PIR Sensor Light Switch Controller Oscillator and ZC Input Pulse and Trigger Output Pulse Min Typ Ma x Un it s Oscillator Frequency 12.8 16 19.2 kHz tZR ZC Pulse Rise Time - 30 100 ns tZF ZC Pulse Fall Time - 30 100 ns tZP ZC Pulse Period 15.1 20 22.2 ms tZW ZC Pulse Width 0.8 1 - ms tOR 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 Sym Descr ip t ion fOSC Test C on d it ion s VCC= 5V, RS = 560Ω, CS = 200pF, see above fig 3 Figure 10. Timing Diagram tZR ZC tZF tZW tZP tOF tOR TRIAC tOW tOP Power Dissipation Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s ICC Power Supply Current VCC = 5V, RS = 560kΩ ,CS=200P, RD = 560kΩ , 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 12-07-0007 10 PT0075-5 07/06/2012 12-07-0007 11 AC 110V~230V TRIAC Q1 LAMP 20~100 W ON/OFF OVERRIDE SW1 1 2 3 R1 20K 68/2W R14 104 C8 1N4007 D2 0.68U/350V C10 C11 1N40 07 D5 1M R9 470UF/16V R9 200K 1N4007 D3 D4 6.2 V D1 1N4148 R10 R2 2.4M CDS R13 R 8 560K 1M R7 MODE SW 2 OF F AUTO ON C3 201 C7 3900P VCC MODE CDS ZC OSCS OSCD TRIAC GND 100UF/16V C1 8 7 6 5 4 3 2 1 E 9 10 11 12 13 14 15 16 C4 100UF/16V VE RST OP1P OP1N OP1O OP2P OP2N OP2O PT8A261 1M 203 C5 SD6222 D S G 10UF/16V C9 R6 C6 56K C13 203 R3 C2 203 22UF/16V 22UF/ 16V C12 R12 22K 1M R4 R5 22K PT8A261/262 PIR Sensor Light Switch Controller Typical Application Circuits Figure 11. Two-Wire Application Circuit of PT8A261 PT0075-5 07/06/2012 12-07-0007 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 VCC MODE CDS ZC OSCS OSCD RELAY GND 470UF/16V C9 8 7 6 5 4 3 2 1 14 9 C4 100UF/16V VEE RST 10 OP1P 11 OP1N 12 OP1O 13 OP2P 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 PT8A261/262 PIR Sensor Light Switch Controller Figure 12. Three-Wire Application Circuit of PT8A262 AUTO OFF PT0075-5 07/06/2012 PT8A261/262 PIR Sensor Light Switch Controller Mechanical Information P(DIP-16) 12-07-0007 13 PT0075-5 07/06/2012 PT8A261/262 PIR Sensor Light Switch Controller W(SOIC-16) 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. 12-07-0007 14 PT0075-5 07/06/2012