Document
2 PIR MOTION SENSORS
Pyroelectric infrared motion sensors from Panasonic for optimal usability and reliability
Panasonic develops and produces PIR motion sensors, which combine easy integration, high reliability and environment-friendly materials. The Panasonic PIR motion sensors abbreviated as PaPIRs, have different series of products, including:
EKM PaPIRs: 3rd generation
AMN NaPiOn: 2nd generation
EKMB (WL) digital output for battery-operated devices (1, 2, 6μA) EKMC (VZ) digital and analog output for battery-free devices (170μA) Available lens colors: white, black and pearl white
AMN3 digital output for battery-free devices (170μA) Available lens colors: white and black
Applications
Multi-function printers, video-conference systems
Digital signage, vending machine
Lighting controls in general, smart luminaires, smart LED bulbs
Thermostats, HVAC (heater, ventilator or air conditioner)
Wake-up switch for LCD displays and panels
IP cameras, intrusion alarms
Smart home and IoT applications
Further information at www.panasonic-electric-works.com/eu/pyroelectric-infrared-sensors.htm
CONTENT 3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 PaPIRs design features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Technical information for all sensors (EKM and AMN) . . . . 5 EKM - Low Profile Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 EKM - Standard Detection Type . . . . . . . . . . . . . . . . . . . . . 7 EKM - Slight Motion Detection Type . . . . . . . . . . . . . . . . . . 8 EKM - Standard and Slight Motion Detection Type . . . . . . 9 EKM - High Density Long Distance Detection Type . . . . . 10 EKM - Horizontally Wide Detection Type . . . . . . . . . . . . . 11 EKM - Wall Installation Detection Type (corner) . . . . . . . . 12 EKM - Long Distance Detection Type . . . . . . . . . . . . . . . . 13 EKM - Lensless Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 EKM - Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
AMN - Standard Detection Type . . . . . . . . . . . . . . . . . . . . 17 AMN - Slight Motion Detection Type . . . . . . . . . . . . . . . . . 18 AMN - Spot Detection Type . . . . . . . . . . . . . . . . . . . . . . . 19 AMN - 10m Detection Type (long distance) . . . . . . . . . . . 20 AMN - Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Cautions for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
We support you in the design-in phase:
Please contact your local sales representative for CAD data and design support.
Further information at www.panasonic-electric-works.com/eu/pyroelectric-infrared-sensors.htm
4 PIR MOTION SENSORS
PaPIRs design features
The PIR motion sensors from Panasonic offer crucial advantages over conventional PIR motion sensors. The unique design concept (explained below) ranges from the production of the pyroelectric sensing devices to the internal signal processing, thus guaranteeing an optimal detection capability and high reliability.
Easy design-in
The integrated amplifier / comparator circuit inside a TO-5 metal can (digital type) prevents interferences caused by electromagnetic fields, such as those generated by cell phones and wireless devices. A special differential circuit design is introduced for the EKMB 6μA type for applications where a high noise resistance is required (up to GHz range).
Small multilens
TO-5 metal can
High sensitive quad pyroelectric element with slit design
ASIC inside (amplifier and comparator)
Small and fancy lens design
Thanks to the special design of the small pyroelectric elements, it is possible to use a smaller lens size while keeping the same detection area and distance compared to conventional sensors.
Conventional PIR element size 1.1×1.1mm
0.6mm 0.4mm 0.6mm
PaPIRs
0.6mm 0.4mm 0.6mm
"Plug and Play" Radiation noise
No false alarms
VDD
OUT
GND
Two times better sensitivity
The sensitivity has been significantly improved thanks to a unique slit design of the pyroelectric elements. The separated sensing areas prevent thermal crosstalk between the single sensing elements. Therefore, reliable detection is possible even if the temperature difference between the background (e.g. floor / wall) and the target object (human) is small. (e.g. ∆T = 4°C)
Element without slit design
Element with slit design
Lens
Reduced focal length (Distance from element to lens)
Detection zones
Four times better signal-to-noise ratio
Improved signal-to-noise ratio thanks to a special I/V circuit which is used for converting a current signal from the pyroelectric element to voltage. Panasonic PIR motion sensors perform by the feedback capacitor and the operational amplifier, different from the conventional FET-type, thereby decreasing the probability of false alarms due to temperature fluctuation.
Conventional PIR (JFET)
PaPIRs (op amp)
DC current f.