RS412 Pyroelectric Infrared Sensor
RS412 is a low power pyroelectric infrared sensor(PIR) for motion detection . Using the MCU for communication,when the RS412 performs continuous motion sensing,the MCU does not need to be activated, it only activates the external MCU when motion is detected. Motion detection results are sent out via the output interrupt signal.The algorithm for motion detection is programmable and can be changed by external MCU configuration, The PIR signal is converted into a 14-bit digital value on the chip, and then enters the motion algorithm detection unit. All signal processing is digital and supports motion detection result output and raw data output.
Technical data:
Window Size: 3*4mm
Output Signal:Digital signal output
Sensing Distance: 10M (lens SB-F-02)
See lens selection for different distances
Sensing Angle: 120° (horizontal direction)
Working Voltage: 1.6-5.5V
Static Power Consumption: <10uA
Recommended Supporting IC: Customized MCU
Features:
Power supply voltage range 1.6~5.5V
Programmable detection standard and working mode
Digital signal processing
Ultra low power consumption
Power supply voltage measurement
Temperature measurement
Fast and stable power-on
Technical data:
Absolute Maximum Ratings
Description | Conditions | Symbol | Min | Typical | Max | Unit |
VDD voltage | 25℃ | VDD | -0.3 | 5.5 | V | 25℃ |
Analog pin voltage | 25℃ | -0.3 | VDD+0.3 | V | 25℃ | |
Digital pin voltage | 25℃ | -0.3 | VDD+0.3 | V | 25℃ | |
Storage temperature | VDD | -30 | 80 | ℃ |
Operating Conditions ( TAMB = +25℃ Typical VDD=3V)
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Description | Conditions | Symbol | Min | Typical | Max | Unit |
Operating temperature | ||||||
Operating temperature range | -20 | +70 | ℃ | |||
Operating Voltage | ||||||
Supply voltage | VDD | 1.6 | 5.5 | V | ||
Supply current | ||||||
Supply current | VDD=3V | IDD | 8 | 11 | µA | |
Detective Wavelength | ||||||
Detective Wavelength | λ | 5 | 14 | μm | ||
Input parameter SERIN | ||||||
Input low voltage | VIL | 0.2 | VDD | |||
Input high voltage | VIH | 0.8 | VDD | |||
Input Current | VSS<VIN<VDD | IIN | -1 | 1 | µA | |
Digital clock low time | tL | 200 | ns | |||
Digital clock high time | tH | 200 | ns | |||
Data Bit Write Time | tBW | 2/FCLK | 5/FCLK | µs | ||
Write timeout | tWL | 16/FCLK | µs | |||
Data input and output pins INT/DOCI | ||||||
Input low voltage | VIL | 0.2 | VDD | |||
Input high voltage | VIH | 0.8 | VDD | |||
Output current high | VOL>(VDD-1V) | IOH | -200 | µA | ||
Output current low | VOL<1V | IOL | 200 |
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