Senba SensingStock Code：300701Focus on PIR R&D manufacturing over 19years
Senba SensingStock Code：300701Focus on PIR R&D manufacturing over 19years
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.Operationg Conditon (T=25°C, Vdd=3V，unless stated otherwise)
Parameter | Symbol | Min | Type | 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 | um | ||
outputs REL | ||||||
output current low | IOL | 10 | mA | VOL<1V | ||
outout current high | IOH | -10 | mA | VOH>(VDD-1V) | ||
Low REL output locking time | TOL | 2 | s | 不可调 | ||
High REL output locking time | TOH | 2 | s | |||
Oscillator and filter | ||||||
LPF cutoff frequency | 7 | Hz | ||||
HPF cutoff frequency | 0.44 | Hz | ||||
On the chip oscillator frequency | FCLK | 64 | kHz | |||
