Senba SensingStock Code：300701Focus on PIR R&D manufacturing over 19years
Senba SensingStock Code：300701Focus on PIR R&D manufacturing over 19years
PROD Model: NS412
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: <11uA
NS412 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.The digital intelligent integrated circuit converts the signal
into digital signal, and when the PIR signal exceeds the selected
digital threshold, there will be a delayed REL level output. The time
parameter is set through the resistance to control the continuous
working delay time of the electrical appliance. All the signal
processing is done on one chip.
Digital signal processing,no drift and aging
High power supply rejection ratio, anti-radio frequency interference(mobile phone,WiFi,etc.)
A second-order Butterworth bandpass filter with built-in infrared sensor to shield input interference at other frequencies
Ontime adjustable
Good stability and effective suppression of repeated malfunctions
Low power consumption and simple application circuit
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 Conditions (T=25°C, Vdd=3V，unless stated otherwise)
Parameter | Symbol | Min | Type | Max | Unit | Remarks |
Regular voltage | VDD | 2.2 | 3 | 3.7 | V | |
Supply current | IDD | 9 | 9.5 | 11 | μA | |
Sensitivity threshold | VSENS | 90 | μV | |||
Detective Wavelength | λ | 5 | 14 | um | ||
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 | Non-adjustable | ||
High REL output delay time | TOH | 2 | 3600 | s | ||
Inputs ONTIME | ||||||
Input voltage range | 0 | VDD1/2 | V | Adjustable between 0V and VDD/2 | ||
Input leakage current | -1 | 1 | μA | |||
Oscillator and Filter | ||||||
LPF cutoff frequency | 7 | Hz | ||||
HPF cutoff frequency | 0.44 | Hz | ||||
On chip oscillator frequency | FCLK | 64 | kHz | |||