PROD Model: RS412
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
It 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.
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
1.Absolute Maximum Ratings
| Description | Conditions | Symbol | Min | Typical | Max | Unit |
| VDD voltage | 25℃ | VDD | -0.3 | 5.5 | V | |
| Analog pin voltage | 25℃ | -0.3 | VDD+0.3 | V | ||
| Digital pin voltage | 25℃ | -0.3 | VDD+0.3 | V | ||
| Storage temperature | -30 | 80 | ℃ |
2.Operating Conditions (TAMB = +25℃ Typical VDD=3V)
| Description | Conditions | Symbol | Min | Typical | Max | Unit |
| Operating temperature range | -20 | +70 | ℃ | |||
| Supply voltage | VDD | 1.6 | 5.5 | V | ||
| Supply current | VDD=3V | IDD | 8 | 11 | µA | |
| Detective Wavelength | λ | 5 | 14 | μm | ||
| Input low voltage | VIL | 0.2 | VDD | |||
| Input high voltage | VIH | 0.8 | VDD | |||
| Input Current | VSS<VIN<VDD | IIN | -1 | 1 | µA | |
| On-chip oscillator frequency | FOSC | 56 | 64 | 74 | kHz | |
| System clock | FCLK | FOSC/2 |
Precautions:
1. The factory parameters of the sensor are obtained after a few minutes of stabilization time under the standard black body and stable test environment.
2. The sensor needs to be used with a Fresnel lens to achieve the ideal sensing angle and sensing distance.
3. The sensing distance of the sensor is directly related to the ambient temperature and humidity, the temperature and moving direction of the acquisition target, the Fresnel lens, and the magnification setting.
4. The sensitive components inside the sensor are relatively thin and brittle. Please handle it with care.
5. The sensor window is a silicon-based semiconductor special material vacuum-coated filter lens. Please do not touch it directly.
6. Selection of sensor window: S:3*4mm, B:3.8*5mm, L:3.8*5mm, M:4.2*5.2mm, X:4*4mm, Q:4.9*4.9mm.
7. Sensor lead length selection: the default is 13.5mm. Customized lead length is supported.
8. For other details of the sensor, please refer to the product manual.
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Senba Sensing Technology is a professional sensor supplier covering r&d, manufacturing, sales and service. The main products include PIR sensors, light sensor, infrared flame sensors, NDIR temperature sensors, differential pressure sensors, etc., mainly used in smart home, security, fire protection, industrial control and other fields.
Senba Sensing Technology was founded in 2005 and listed on Gem board of Shenzhen Stock Exchange in 2017. With more than 18 years of professional experience in the field of sensor manufacturing, Senba Sensing Technology is the leading enterprise in the field of infrared sensors, visible light sensors in China, with the first market share and an annual production of 524.26 million sensors. With the concept of "Intelligent Sensing, Intelligent Life", we strive to build a world-class sensor brand.
