Human Body Detection Digital Control Circuit Sensitive Element PIR Sensor P916H Low Voltage
Description Of The PIR Sensor P916H
The P916H is a pyroelectric infrared sensor that integrates a digital intelligent control circuit and a human body detection sensitive element in an electromagnetic shielding cover. The human body sensing sensor couples the sensed body motion signal to the digital smart integrated circuit chip through a very high impedance differential input circuit. The digital smart integrated circuit converts the signal into a 15-bit ADC digital signal when the PIR signal exceeds the selected digital valve. The value will have a timed REL level output.
Features Of The PIR Sensor P916H
* Digital signal processing
* Enable power regulation for more energy savings
* Two-way differential very high impedance sensor input
* A second-order Butterworth band-pass filter with built-in infrared sensors shields input interference from other frequencies
* High power supply rejection ratio, anti-radio frequency interference
* LED sensor dynamic output port
* Low voltage, low power consumption, instant work after startup
Application Of The PIR Sensor P916H
* Digital Frame
* Sensor light
* TV, fridge, air conditioning
* Web video camera
* USB alarm
* PIR motion detection
* Intrusion detection
* Occupancy detection
* Interior lights, corridors, buildings, private alarms
* LAN Monitor
* Car theft
Performance parameters Of The PIR Sensor P916H
1.Maximum rated value
Any electrical stress exceeding the parameters in the table below may cause permanent damage to the device. Working under these maximum rated conditions may affect the reliability of the device.
| Parameter | Symbol | Min. | Max. | Unit |
| Supply Voltage | Voo | -0.3 | 3.6 | V |
| Operating temperature | TST | -20 | 85 | ºC |
| Pin limit | Into | -100 | 100 | mA |
| Storage Temperature | TST | -40 | 125 | ºC |
2. Working conditions (T=25 °C, V DD = 3V, unless
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Remark |
| Supply Voltage | VDD | 2.7 | 3 | 3.3 | V | |
| Working Current | IDD | 12 | 15 | 20 | μA | |
| Sensitivity Threshold | VSENS | 120 | / | 530 | μV | |
| Output REL |
| Output low frequency | LOL | 10 | / | / | mA | VOL < 1V |
| Output high frequency | LOH | / | / | -10 | -10mA | VOH >(VDD-1V) |
| REL low level output lock time | TOL | / | 2.3 | / | sec | Not adjustable |
| REL high output lock time | TOH | 2.3 | / | 4793 | sec | |
| Input SENS/ONTIME |
| Voltage input range | | 0 | / | VDD | V | Adjustable between 0V and 1/4VDD |
| Input bias current | | -1 | / | 1 | μA |
| Enable OEN |
| Input low voltage | VIL | / | / | 0.2 VDD | V | OEN voltage high to low threshold level |
| Input high voltage | VIH | 0.4VDD | / | / | V | OEN voltage low to high threshold level |
| Input Current | VI | -1 | / | 1 | μA | VSS < VIN < VDD |
| Oscillator and filter |
| Low pass filter cutoff frequency | | | | 7 | Hz | |
| High pass filter cutoff frequency | | | | 0.44 | Hz | |
| Oscillator frequency on the chip | FCLK | | | 64 | KHz | |
Size angle bitmap Of The PIR Sensor P916H (mm)
1:VDD(PIR Power Supply) 2:REL(PIR Output) 3:VSS(PIR Power Supply Ground)
Application circuit Of The PIR Sensor P916H
Precautions Of The PIR Sensor P916H
●When there are stains on the window, it will affect the detection performance, so please pay attention.
● The lens is made of a weak material (polyethylene). When a load or impact is applied to the lens, malfunction and performance deterioration may occur due to deformation and damage, so avoid the above.
● Failure to apply static electricity of ±200V or more may cause damage. Therefore, please pay attention to the operation, avoid touching the terminal directly by hand.
●When soldering a wire, solder the soldering iron at a temperature of 350 ° C or less and soldering within 3 seconds. When soldering through a solder bath, performance may deteriorate, so avoid it.
● Please avoid cleaning the sensor. Otherwise, the cleaning liquid may intrude into the inside of the lens, which may cause deterioration in performance.
● When using the cable wiring, it is recommended to use shielded wires to minimize the influence of interference.
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