PROD Model: NS312
Window Size: 3*4mm
Output Signal:High and low level output
Sensing Distance: 10M(lens SB-F-02)
See lens selection for different distances
Sensing Angle: 120° (horizontal direction)
Working Voltage: 2.2-3.7V
Static Power Consumption: <15uA
NS312 is a type of PIR sensor which integrates a digital control circuit and a human detection sensor in an electromagenetic shielding housing.The human body detection sensor couples the sensed human movement signal to the digital intelligent integrated circuit chip through a very high impedance differential input circuit, and the digital intelligent integrated circuit converts the signal into an ADC digital signal, and all signal processing is done on the chip.
Digital signal output
Low power consumption、Low voltage ,Short warm-up time
High power supply rejection ratio, anti-RF interference
The second-order Butterworth bandpass filter with built-ininfrared sensor shields input interference at other frequencies
Good stability, effective suppression of repetitive misoperations
The application circuit is simple
Timing time 2S output
1. Absolute Maximum Ratings
Electrical characteristics (beyond those listed below may cause permanent damage to the device. Exposure to absolute maximum ratings may affect the device reliability.)
| Parameter | Symbol | Min | Max | Unit | Remarks |
| Operating Temp | TST | -30 | 70 | ℃ | |
| Current into any pin | Into | -100 | 100 | mA | |
| Storage Temp | TST | -40 | 80 | ℃ |
2. Operating Condition (T=25°C, VDD=3V, unless stated otherwise)
| Parameter | Symbol | Min | Typ | Max | Unit | Remarks |
| Regular voltage | VDD | 2.7 | 3 | 3.3 | V | |
| Operation current | IDD | 9 | 12 | 15 | μA | |
| Sensitive threshold | VSENS | 100 | μV | |||
| Detective wavelength | λ | 5 | 14 | μm | ||
| Outputs REL | ||||||
| Output current low | IOL | 10 | mA | VOL < 1V | ||
| Output current high | IOH | -10 | mA | VOH > (VDD - 1V) | ||
| Low REL output locking time | TOL | 2 | s | Not adjustable | ||
| High REL output locking time | TOH | 2 | s | |||
| Oscillator and filter | ||||||
| LPF cutoff frequency | 7 | Hz | ||||
| HPF cutoff frequency | 0.44 | Hz | ||||
| On-chip oscillator frequency | FCLK | 64 | kHz |
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