LSI/CSI UL ® A3800 LS6506R LS6507R LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 (631) 271-0400 FAX (631) 271-0405 PIR SENSOR INTERFACE June 2009 FEATURES: • Latching relay drive (LS6506R) • LS6506R is suitable for incandescent and fluorescent lights, electronic and magnetic ballasts, motors and heaters, etc. • Triac drive (LS6507R) • Sensitivity adjustment • Push-button for manual on/off control • Ambient light override adjustment • Selectable time-out adjustments • 3 Operating Modes: 1. Manual On or Auto On / (Manual Off and Delayed Auto On) or (Manual Off and Manual On) or Auto Off 2. Manual On / Manual Off or Auto Off 3. Manual On or Auto On / Manual Off or Auto Off • LED indicator light for motion detection • Controls 115VAC and 220VAC applications • LS6506R (DIP), LS6506R-S (SOIC); LS6507R (DIP), LS6507R-S (SOIC) - See Figures 1A & 1B Operation for Mode 2 is as follows: The circuit contains a two stage PIR amplifier. The sensitivity can be adjusted by replacing R5 in Figure 2 with a potentiometer. Upon power up all inputs are disabled for a period of 56 seconds (60Hz operation) or 67 seconds (50Hz operation) in order for the PIR amplifier to reach its quiescent operating state. The circuit contains two operating modes. Refer to Figure 5 for State Diagrams. The LS6506R can operate using a 12V latching relay. Figure 2 shows typical resistor and capacitor values for a 12V relay. Z1 is specified as a 15V zener diode. The chip generates its own 5V regulator to power its internal circuits and a separate 5V regulator to power the two stage PIR amplifier and external PIR. The LS6506R generates 16ms pulses on two outputs for setting/resetting the latching relay. Upon power up, the LS6506R generates a reset pulse as soon as its supply voltage reaches the relay coil’s set/reset voltage. This ensures that the relay comes up in the off position and occurs 20 seconds (60Hz operation) or 24 seconds (50Hz operation) after power is applied. In this mode, lights can only be turned on by pressing the On/Off pushbutton. Lights will remain on if occupancy is detected. Lights will turn off automatically when occupancy no longer exists and the time-out occurs. Lights can also be turned off by pressing the On/Off pushbutton. Operation for Mode 3 is as follows: In this mode, Pins 10 and 12 are connected together. One momentary switch is used instead of the two as shown in Figures 2 and 3. Lights can be turned on by pressing the momentary pushbutton or by occupancy detection. Lights will remain on if occupancy is detected. Lights will turn off automatically when occupancy no longer exists and the time-out occurs. Lights can also be turned off by pressing the momentary pushbutton. Refer to the application schematic of Figure 2: Whenever the momentary switch SW1 is pressed, a 7 second delay period (60Hz operaDESCRIPTION tion) or an 8.4 second delay period (50Hz operation) occurs in which The LS6506R is a CMOS integrated circuit designed for room oc- the momentary switch operation is disabled. This enables capacitor C9 cupancy detection and can be used for switching power on to all types to be recharged so that the next operation of SW1 will be properly recof AC loads. The circuit drives a two-coil latching relay (Figure 2). When ognized. the latching relay is engaged, full AC power is connected to the load. The LS6506R draws its power from the AC hot line and the house- An additional control potentiometer at the LDR input is used to adjust ground connection that is located in a standard wall box. The maximum the amount of ambient light required to prevent occupancy detection current draw from the ground line is 500µA RMS. The LS6507R draws from turning the lights on (Mode 1 only) and from resetting the time-out its power from the AC HOT and AC NEUTRAL lines. All timing is gener- counter. The occurrence of an ambient light condition will not affect a ated from the AC input. timeout already in progress. Operation for Mode 1 is as follows: Refer to Figure 2. The IC will power up in the Off-State, S0. A momentary pressing of the pushbutton switch SW1, or occupancy detection, will cause a negative-going output pulse, LR1, to occur and turn on the light and place the IC in the On-State, S1. If occupancy is not detected, a negative-going output pulse, LR2, will cause the lights to turn off after a time-out of 5, 10, 20 or 30 minutes, or 30 seconds, as selected by a potentiometer control at the Timer Control input. If occupancy is detected before time-out occurs, the selected time-out begins again. If time-out occurs and the lights switch off, then occupancy detection, or pressing the pushbutton switch, will switch the lights back on again. Once the unit is in S1, pressing the On/Off push-button switch places the unit in the Off-State, S2 , and turns the lights off and keeps them off as long as motion is detected, or if motion is not detected the lights will stay off for the time-out period. At the end of the time-out period, the unit will revert to S0. Whether the lights are on or off, detected motion will cause the LED indicator light to blink. 6506R-060209-1 For triac operation, the LS6507R is shown in the Figure 3 application schematic. The LS6507R has the same features as the LS6506R. This circuit is intended for driving lamps, motors and heaters. The LS6507R has a single output that generates a 50µs negative pulse to drive the gate of a triac. The pulse output is delayed from the AC zerocrossover point by 1.2ms. This delay still enables 99% power to be delivered to the load while allowing circuit power to be derived from the connection to the load. The LS6507R application schematic does not require connection to the house-ground. For calibration purposes in either mode, connecting the Timer Control to VREG will set the time-out to be 30 seconds allowing for walking test to set the desired sensitivity. Note also that a two- position switch may be used instead of a potentiometer for time-out control. In that case, either 5 minutes or 30 seconds is available for time-out. The circuit also has a built-in 2 second dead time at the end of the time-out to prevent false turn-ons from occurring. INPUT / OUTPUT DESCRIPTION PIR AMPLIFIER This is a two stage amplifier. Each stage can be set to have its own amplification and bandwidth. Pins 15 and 16 make up the positive and negative inputs for Stage 1 and Pin 1 is the output. The two inputs allow for single-ended or differential connection to PIR Sensors. Pin 2 is the negative input for Stage 2. The output of Stage 2 is applied to an internal comparator. The positive input of Stage 2 is internally biased so that the comparator’s lower and higher threshold can be fixed relative to this bias. Only those signals greater than a fixed threshold appear at the output of the window comparator. Refer to Figure 4. LR1 / LR2 OUTPUT (LS6506R, Pin 6 / Pin7) For the LS6506R, a 16.66ms negative going pulse appears on the LR1 output whenever conditions call for the latching relay to turn on. When conditions call for the latching relay to turn off, a 16.66ms negative going pulse appears on the LR2 output. Each output is capable of sinking 50mA. The outputs are generated in synchronism with the AC voltage input such that the leading edge of these outputs always occur when the AC voltage input switches low. Refer to Figure 6. Potentiometers R2 and R5 are adjusted so that the relay contacts always close and open at the AC zero-crossover at the load. TRIAC OUTPUT (LS6507R, Pin7) With the output duration timer on and a 2.7V P-P 60Hz Signal applied to the AC input, the output produces a negative going 32us wide pulse in each half-cycle delayed a nominal 1.2ms from the zerocrossing. Refer to Figure 3. Resistors R9 and R10 are used to generate the input which is then ACcoupled into the chip through C9. AC INPUT (Pin 5) This input is derived from the AC hot line input. For the LS6506R it is used for synchronizing the relay drive outputs. For the LS6507R it is used for generating the triac output. It is also the source for all timing in the LS6506R and LS6507R. 6506R-042908-2 ON/OFF INPUT (Pin 12) The On/Off input is a momentary input used to turn the latching relay on or off (LS6506R) or to enable or disable output pulses to a triac (LS6507R). Refer to the state diagrams of Figure 5. This input has a pull-up resistor which allows the use of a SPST momentary switch. LDR INPUT (Pin 11) The Light Determining Resistor (LDR) input is used to inhibit motion from turning on the load during daylight hours. Referring to Figure 2, the ambient level for inhibiting turn-on can be adjusted. There is also approximately 10% hysteresis between inhibiting and enabling at the LDR input. Under certain conditions the LDR input is also used to keep the load off when motion is detected. Refer to Figure 5, Mode 1. TIME CONTROL INPUT (Pin 13) The voltage level at the time out control input selects 5 different timeouts and the Walking Test as shown in Table 1. A potentiometer can be used for these selections as shown in Figure 2. MODE INPUT (Pin 10) This input has a pull-up resistor. When this input is left floating, Mode 1 is selected. When this input is tied to ground, Mode 2 is selected. LED OUTPUT (Pin 9) This is an open drain output which generates negative-going pulses whenever motion is detected. The output is not affected by the LDR input. It is used to sink current from a series Resistor – LED network as shown in Figure 3. 5V REGULATOR OUTPUT (Pin 14) This regulator is used to provide power to the PIR sensor and the internal PIR amplifiers as well as the external timeout and LDR networks. TABLE 1 Output Operation Time as a Function of Time Out Input Control Voltage Input Voltage 60Hz Operation VIN = 0 . 50Hz Operation Units 5 6 Minutes VIN = 0.25VREG 10 12 Minutes VIN = 0.5VREG 20 24 Minutes VIN = 0.75VREG 30 36 Minutes *VIN = VREG 30 36 Seconds *Walking Test: Ambient light will not prevent motion from turning the lights on or resetting the time-out counter PIN ASSIGNMENT - TOP VIEW DIFF. AMP. 1 OUTPUT 1 DIFF. AMP. 2 INPUT (- ) DIFF. AMP 1 INPUT (- ) 2 15 DIFF. AMP 1 INPUT (+) DIFF. AMP. 2 OUTPUT 3 14 5V REGULATOR OUTPUT VSS 4 13 TIME-OUT INPUT AC 5 12 ON/OFF LR1 6 11 LDR INPUT LR2 7 10 MODE INPUT V DD 8 9 LED OUTPUT LSI 16 LS6506R FIGURE 1A PIN ASSIGNMENT - TOP VIEW DIFF. AMP. 1 OUTPUT 1 DIFF. AMP. 2 INPUT (- ) DIFF. AMP 1 INPUT (- ) 2 15 DIFF. AMP 1 INPUT (+) DIFF. AMP. 2 OUTPUT 3 14 5V REGULATOR OUTPUT VSS 4 13 TIME-OUT INPUT AC 5 12 ON / OFF N/C 6 11 LDR INPUT TRIAC OUTPUT 7 10 MODE INPUT 8 9 LED OUTPUT LS6507R VDD LSI 16 FIGURE 1B 6506R-042308-3 ABSOLUTE MAXIMUM RATINGS: PARAMETER SYMBOL DC supply voltage Any input voltage (Except AC) AC input voltage Operating temperature Storage temperature VDD - VSS VIN VAC TA TSTG VALUE UNIT +17 Vss - 0.3 to VR + 0.3 Vss - 0.3 to VDD + 0.3 -40 to +70 -65 to +150 V V V °C °C ELECTRICAL CHARACTERISTICS: (All voltages referenced to VSS, TA = -40˚C to +55˚C, VDD = 15V, unless otherwise specified.) PARAMETER SYMBOL MIN TYP MAX UNIT CONDITIONS SUPPLY CURRENT: VDD = 15V IDD - 250 350 µA Figure 2 configuration REGULATOR: Voltage Current VR IR 4.0 - 100 6 150 V µA - G CMRR PSRR 70 - 60 60 - dB dB dB - VS 100 - - µV TA = 25˚C, with Amplifier Bandpass configuration as shown in Figure 2 - 0 - 2.0 V - VIR - 0.3VR - V - COMPARATOR: Lower Reference Higher Reference VTHL VTHH - VIR - 0.5 VIR + 0.5 - V V - DIGITAL FILTER: Input Pulse Width (for recognition) TPW TPW 66.6 80.0 - - ms ms DIFFERENTIAL AMPLIFIERS: Open Loop Gain, Each Stage Common Mode Rejection Ratio Power Supply Rejection Ratio Input Sensitivity (Minimum Detectable Voltage to first amplifier when both amplifiers are cascaded for a net gain of 5,000) Input Dynamic Range Diff. Amp 2 Internal Reference 60Hz operation 50Hz operation LDR INPUT: Inhibit Threshold VTHI - ≥ 0.5VR - V - Enable Threshold VTHE - ≤ 0.45VR - V - LATCHING RELAY: Output Sink Current LR1 / LR2 ILO 50 - - mA VOUT ≤ 1.75V LPW LPW - 16.66 20.0 - ms ms 60Hz operation 50Hz operation IDS 1 - 4 uA - On Threshold Voltage ] Mode 1 Selection ] VTHN - - ≥ 0.5VR V - On Threshold Voltage ] Mode 2 Selection ] VTHF ≤ 0.25VR - - V - Drive Output Pulse Width ON / OFF & MODE INPUTS: Input Current Source 6506R-012608-4 PARAMETER SYMBOL MIN TYP MAX UNIT CONDITIONS TRIAC: Output Drive Current ITO -75 - - mA Output Timing: Pulse Width VO = VDD - 3V 3V Triac Gate Drive TPW 20 30 45 us - TOD 1.00 1.20 1.32 ms Freq = 60Hz, and 2.7V P-P AC Input Delay Difference Between Zero-Crossovers TODD - - 150 us - AC Input Impedance ZAC - 2.9 - MΩ LS6507R LED OUTPUT: Sink Current ILS 2 - - mA VDD = 15V, VO = 0.5V Pulse Width DPW - 32 - ms Minimium Repetition Rate DPS - - 2 sec Delay From Zero-Crossover The information included herein is believed to be accurate and reliable. However, LSI Computer Systems, Inc. assumes no responsibilities for inaccuracies, nor for any infringements of patent rights of others which may result from its use. 6506R-042308-5 R3 V DD C3 + R12 - 1 C4 AMP 1 OUT + + C9 - R4 C5 2 D2 D3 4 SW3 6 P LOAD AC MAINS 7 N AMP 1 (+) IN 5 R1 5V REG. OUT R13 Z1 LR1 LR2 TIME OUT ON/OFF 14 + C1 13 12 R8 SW1 R10 V SS AC 11 LDR R9 LS6506R C7 - C6 - MODE D1 PIR SENSOR VSS LDR Earth Gnd R2 R6 AMP 2 OUT C2 15 R5 3 LR AMP 2 (- ) IN AMP 1 (- ) IN - 16 10 SW2 V SS C8 + 8 R7 V DD LED OUT 9 R11 V DD LED C1 = 100µF C7 = 100pF, 25V SW1 = SPST Momentary C2 = 10µF C8 = 50µF, 25V SW2 = SPST C3 = 0.01µF C9 = 100uF, 25V SW3 = SPST C4 = 10µF D2, D3 = 1N4148 C5 = 0.01µF LDR = SILONEX NSL-19M51 (Typical) C6 = 0.1uF Z1 = 15V, 1/2W, 5% D1 = DF02 Bridge Rectifier * D1 = DF04 Bridge Rectifier LR = Two-Coil Latching Relay (Typical): Schrack RT314F12, Matsushita NAiS DSPIA-L2-DC12V All Rs 1/4W, all Cs 10V unless otherwise specified. Panasonic ADJ23012 PIR = Perkin-Elmer LHi 958 or 878, Nicera RE200B, SDA02-54 (Typical) * = Component change for 220VAC R1 = 1.5MΩ R2 = 33kΩ R3 = 1.5MΩ R4 = 33kΩ R5 = 1.5MΩ R6 = 36kΩ R7 = 220kΩ * R7 = 390kΩ R8 = 1MΩ R9 = 1MΩ R10 = 910kΩ R11 = 12kΩ R12 = 12kΩ R13 = 56kΩ, 1/2W * R13 = 120kΩ, 1/2W NOTES: 1. The C8, D1, Z1, R7 components generate the DC Supply Voltage for the LS6506R. 2. The R2, C2, R3, C3, R4, C4, R5, C5, R6, C6 components and the two on-chip Differential Amplifiers set a nominal gain of 2,000 with bandpass filtering of 0.5Hz to 10Hz. 3. R5 may be replaced with a potentiometer in order to adjust the Sensitivity. 4. The value of R6 may have to be adjusted if the selected PIR Sensor causes the input static voltage at Pin 15 to be out of the Input Dynamic Range. 5. LR1 output closes contacts of Relay LR. LR2 output opens contacts of Relay LR. 6. Total Earth Ground current is typically 450uA RMS. FIGURE 2. Typical Two-Coil Latching Relay Wall Switch Application 6506R-121508-6 R3 C3 + 1 C4 - AMP 1 OUT AMP 1 (- ) IN + - 16 C2 R2 R4 2 C5 AMP 1 (+ ) IN AMP 2 (- ) IN 4 V DD AMP 2 OUT 5V REG OUT R10 LOAD R7 N MT2 AC MAINS MT1 TI R11 C7 5 6 D1 ON / OFF AC + + C1 13 R12 12 SW1 R14 V SS N/C LDR Z1 14 - VSS TIME OUT CONTROL C9 C6 R6 R5 3 R9 PIR SENSOR 15 LDR 11 R13 LS6507R C8 7 G TRIAC OUT MODE 10 SW2 V SS R8 P 8 SW3 VDD LED OUT 9 LED V DD R1 = 12kΩ R2 = 33kΩ R3 = 1.5MΩ R4 = 33kΩ R5 = 1.5MΩ R6 = 36kΩ R7 = 270Ω, 1/2W * R7 = 1kΩ, 1W R8 = 1kΩ R9 = 910kΩ R10 = 7.5kΩ * R10 = 3.6kΩ R11 = 100Ω R12 = 1.0MΩ R13 = 1.0MΩ R14 = 910kΩ All Resistors 1/4W, all Capacitors 10V unless otherwise specified. C1 = 100µF C2 = 10µF C3 = 0.01µF C4 = 10µF C5 = 0.01µF C6 = 0.1µF C7 = 0.47µF, 250V * C7 = 0.33µF, 400V C8 = 1000µF, 25V C9 = 0.1µF, 25V SW1 = SPST Momentary SW2 = SPST SW3 = SPST D1 = 1N4004 LDR = Silonex NSL-19M51 (Typical) Z1 = 15V, 1/2W, 5% T1 = Q4008L4 (Typical) * T1 = Q5004L4 (Typical) PIR = Perkin-Elmer LHi 958 or 878 (Typical) Nicera RE200B, SDA02-54 (Typical) * = Component change for 220VAC NOTE: The R9, R10, C9 network provides a 2.7V P-P AC signal input to Pin 5. FIGURE 3. Typical Triac Wall Switch Application 6506R-101308-7 VDD R1 5V INTERNAL POWER SUPPLY 5V REG 14 OUTPU T V DD V REG 5V REGULATOR 8 VREG VREG V SS DIFF AMP 1 INPUT(+) 4 15 DIFF AMP 1 INPUT(- ) 16 DIFF AMP 1 OUTPUT 1 DIFF AMP 2 INPUT(- ) 2 DIFF AMP 2 OUTPUT 3 TIME-OUT INPUT LDR INPUT ON / OFF 13 + + AMP - AMP - LED OUTPUT DRIVER 6 LR1 (6506R) NC (6507R) DRIVER 7 + CMP V REG DIGITAL FILTER CMP - CONTROL LOGIC ADC OUTPUT DURATION TIMER + CMP - DEBOUNCE FILTER LR2 (6506R) TRIAC OUTPUT (6507R) 10 ZERO CROSS-OVER DETECT FIGURE 4. LS6506R / LS6507R BLOCK DIAGRAM 6506R-042908-8 9 DRIVER + 11 12 2-SEC PULSE GEN. 5 MODE INPUT AC Mode 1 POR (MD and (NAL or WT)) or (PB) (MD and (NAL or WT)) S0 S1 OFF ON PB (MD and (NAL or WT)) S2 OFF PB TO TO Mode 2 PB POR (MD and (NAL or WT)) S0 S1 OFF ON (TO + PB) Mode 3 Note: Mode 3 is entered by connecting Pins 10 and 12 together and using one momentary switch. POR (MD and (NAL or WT)) or PB (MD and (NAL or WT)) S0 S1 OFF ON (TO or PB) MD = Motion Detect NAL = No Ambient Light TO = Time-Out PB = Push-Button pressed WT = Walking Test FIGURE 5. STATE DIAGRAMS 6506R-060209-9 V DD R12 C9 D2 V DD D3 LR P SW3 4 AC MAINS U1 U1 5 2 R3 R1 3 R2 6 LR1 C1 LOAD V DD N LS6506R R6 10 U1 9 6 U1 R4 7 R5 7 LR2 C2 U1 = CD4049UB/CD4050B R1, R4 = 51kΩ, 1/4W R2, R5 = 2MΩ Potentiometer, 1/4W R3, R6 = 100kΩ, 1/4W C1, C2 = 0.01uF, 25V Note: Connect U1 Pins 11 and 14 to Gnd. Outputs LR1 and LR2 occur on the negative edge of the AC input at Pin 5 of the LS6506R. Variable resistors R2 and R5 are adjusted so the relay contact closes and opens at the at the AC zero-crossover at the Load. FIGURE 6. Zero-Crossing Adjustment 6506R-012608-10 SW3 P AC MAINS N R1 5 AC Earth Gnd C7 LS6506R D1 Z1 R2 R5 Q1 R3 R4 Z2 Q1 = MPSA42 or equivalent R1 = 1.5MΩ, 1/4W (Reference Figure 2) R2 = 180kΩ, 1/4W R3 = 12kΩ, 1/4W R4 = 4.7MΩ, 1/4W R5 = 91kΩ, 1W C7 = 0.001uF, 25V (Reference Figure 2) C8 = 50µF, 25V (Reference Figure 2) Z1 = 15V, 5%, 1/2W (Reference Figure 2) Z2 = 5.6V, 10%, 1/4W The AC current drawn from Earth Ground is regulated to remain virtually constant as the AC Mains Voltage varies from 120VRMS to 277VRMS FIGURE 7. Earth Ground Current Regulator 6506R-042308-11 C8 8 V DD AC INPUT LR1 / LR2 OUTPUT LPW TRIAC OUTPUT T OD T PW LED OUTPUT D PW FIGURE 8. OUTPUT TIMING 6506R-060209-12