RS412

RS412 Product Introduction

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.

RS412 Product 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

RS412 Technical Data

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.

RS412 Product Specification Document

Access detailed technical information, configuration guides, and solutions notes to support your evaluation and implementation of the SB-2023 Series.

• Product Datasheet

  Complete technical specifications, performance curves, dimensional drawings, and ordering information.

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• Product Datasheet

  Complete technical specifications, performance curves, dimensional drawings, and ordering information.

  Download
• Product Datasheet

  Complete technical specifications, performance curves, dimensional drawings, and ordering information.

  Download