Microwave induction & human body induction module ST0002M-R22
Product overview
ST0002M-R22 is a small microwave induction module using infrared sensor processing circuit design.Human reflection wave detection using 3.5G microwave signal,Product design is simple, small size, light weight, easy to mass assembly production.Widely used in a variety of human body induction lighting occasions, anti-theft alarm occasions.
Microwave induction, also known as radar, Sensors transmit high frequency electromagnetic waves and receive their echoes, This sensor detects changes in the echo, And it can detect tiny movements within the range,Then trigger instruction. The microwave induction switch is a new type of non dead angle sensor,Based on the principle of Doppler radar, The planar antenna is very low power electromagnetic wave and receives the echo. It can effectively restrain the interference, high sensitivity, high reliability, safety and convenience, and energy saving, and it is a new and practical energy saving product. If the sensing area is detected, the reflection frequency is changed, the sensor triggers the action, and the output signal is opened or closed according to the need. The Doppler effect refers to the object radiation wavelength as the light source and the observer relative motion produces changes in the movement of the wave front, the wave is compressed, the wavelength becomes shorter, the frequency becomes higher, behind the movement of the wave, have the opposite effect, wavelength becomes longer, the frequency becomes lower, wave speed is high, the effect produced by the greater light, red / blue shift degree can be calculated through wave velocity in the direction of motion of general observation, this is called the Doppler effect.
Main features
●CMOS digital analog hybrid integrated circuit
●LED lamp panel can be directly welded
●Bidirectional detecting device can effectively restrain interference
●Time delay and blocking time adjustable, can be a day response,Also in the dark environment through time in response to light control element.
●Built in patch CDS detection
●Wide operating voltage range +6V~+36V
●On the electric heater once, that is, a circuit mandatory trigger
●Default settings for continuous trigger mode
●The default setting is 30 seconds.
●Default settings are not working during the day
Typical applications
●LED bulb, corridor induction lamp, floodlight
●Nightlight, electric toys
●Induction lamp and security alarm device. Such as corridor, garage, balcony, yard, garage induction lamp, as well as energy-saving switch or security
Lead out end arrangement
PCBA logic block diagram
Lead end function (clockwise)
Serial number
| Symbol
| Function description
| I/O | Serial number
| Symbol
| Function description
| I/O
|
1 | VCC | High-voltage power supply
| I | 5 | E | N output tube E end
| O |
2O | V75 | 7.5V regulated output
| I/O | 6 | GND | Signal loop
| O |
3 | V50 | 5.0V regulated output
| I/O | 7 | CDS | Light end output, standby
| I/O |
4 | C | N output tube C end
| I | | | | |
Maximum rating (TA = 25)
Parameter name
| Symbol
| Numerical value
| Unit
|
working voltage
| VDD | -0.5 to +40 | V |
Storage temperature
| TSTG | -20 to +80 | ℃
|
working temperature
| TOP | -10 to +70 | ℃
|
Maximum output voltage
| VOMAX | 40 | V |
Output peak current
| IOMAX | 500 | mA |
Note 1: the maximum current in the VCC=36V test, a long time will cause the output tube power consumption is too large damage to the output tube, PD=0.25W.
DC electrical characteristics (TA = +25 degrees C, if no special instructions)
Symbol
| Parameter name
| Test condition
| Min.
| Typical
| Max. | Unit |
VCC | Operating voltage range
| VCC input (V50, V75)
| 9 | - | 36 | V |
ICC | Operating current
| Output no load VCC=9V
| | 4.95
| | mA |
Output no load VCC=24V
| | 5.4 | | mA
|
Output no load VCC=36V
| | 5.7 | | mA
|
PSRRVCC
| Power supply ripple rejection
| CDS=0V, antenna signal output
| | 70 | | dB |
V75
| Operating voltage range
| V75 input (V50, VCC)
| 6 | - | 15 | V |
ICC-75
| Operating current
| Output no load VCC=6V
| | 4.67
| | mA |
Output no load VCC=12V
| | 6 | | mA |
Output no load VCC=15V
| | 6.66 | | mA |
PSRRV75
| Power supply ripple rejection
| CDS=0V, antenna signal output
| | 50
| | dB |
V50 | Operating voltage range
| V50 input (V75, VCC)
| 4.9 | 5.0 | 5.1 | V |
ICC-50 | Operating current
| Output no load VCC=5.0V
| | 4.47
| | mA |
PSRRV50 | Power supply ripple rejection
| CDS=0V, antenna signal output
| | 10 | | dB |
VOUT | Open drain voltage
| Output tube BCW66, IOUT=10mA
| | 40 | | V |
VOUT_TRI | Triggered output voltage
| Detection of the human body, IOUT=0mA
| | | 0.1 | V |
IOUT | Open drain output pull current
| VDD=36V
| | 400 | | mA |
θ
| Detection angle | Antenna front (external antenna) | 30 | 135 | | ° |
d_Front | Positive detection range | θ=0° Barrier free | | 9 | | M |
d_Back1 | Back detection distance 1 | θ=0° Barrier free | | 6 | | M |
d_Back2 | Back detection distance 2 | 15CM Concrete wall | | 0.1 | | M |
Tx | Delay Time | R1=200KΩ、R2=680KΩ | | 30 | | S |
TI | Blocking time | R1=200KΩ、R2=680KΩ | | 1 | | S |
ICDS-Dark | Photosensitive dark current | Vce=20V,Ee=0mW/cm2 | | | 100 | nA |
ICDS-Light | Light sensitive current | Vce=5V,Ee=1mW/cm2 | 0.3 | 1 | | mA |
E-enable | Enable ambient brightness | R3=5MΩ,No enclosure | | | 5 | LUX |
Note: TX, please refer to the ST0002 specification TI set.
Application of typical microwave module connection diagram
1.Medium and small power induction bulb lamp (with photosensitive resistance)
Note: the power supply can be used in isolation, non isolated constant current or constant voltage circuit, only to ensure that the output voltage fluctuation range in the rated value. Output power fluctuations should not be greater than 20%, in order to avoid false trigger. If you need to work during the day, the CDS end through the 1K resistor V50, increase the resistance of 1K can adjust the LUX value of E-enable illumination. Bulb lamp, if you need to do induction dimming, please external microcontroller and power tube, SCM power supply is not recommended to use V50 power supply, please take power from the V75 and then do the voltage regulator, so as not to affect the ability of the module PSRR.
2.Small power sensor light (with photosensitive resistance)
Note: the power supply can be used in isolation, non isolated constant current or constant voltage circuit, only to ensure that the output voltage fluctuation range in the rated value. Output power fluctuations should not be greater than 20%, in order to avoid false trigger. If you need to work during the day, the CDS end through the 1K resistor V50, increase the resistance of 1K can adjust the LUX value of E-enable illumination. Bulb lamp, if you need to do induction dimming, please external microcontroller and power tube, SCM power supply is not recommended to use V50 power supply, please take power from the V75 and then do the voltage regulator, so as not to affect the ability of the module PSRR.
3.Medium power induction fluorescent lamp (with photo resistor)
Note: as shown above, due to the power of up to 40-80W fluorescent lamp, LED terminal voltage and current has exceeded the limit value of the module, so the module can only be placed on the source side of the control. The module power supply can use the auxiliary winding, and the voltage of the auxiliary winding is adjusted according to the actual voltage characteristic. If the power control chip EN pin for the high level off IC, you can use the same event output connection method; if it is a low level off IC, then the reference to the reverse phase output of the bulb. This program must ensure that the power supply EN IC so that the auxiliary windings still have more than 5mA of power supply, such as can not be guaranteed, please give the module alone. Photosensitive resistor adjustment is no longer repeat. We can use an external light application of MCU control, if the power supply IC with analog linear adjustable linear barefoot, can be used to add RC module output network generates a second charge voltage and the discharge voltage of linear control, realize gradually dimming function.
Functional characteristics:
1.Transmit and receive microwave using advanced planar technology.
2.Intelligent full automatic induction: the use of active sensors, sensors transmit high frequency electromagnetic wave and receive the echo. After induction to automatically turn on the lights, the lights, the lights are turned off, safety and power saving, without the interference of external factors such as the sound. When someone enters the detection range of the product, the microwave detector works to light the lamp, and when a person leaves the detection range, the lamp automatically goes out. It can automatically identify the day and night.
3.Anti interference is strong: the external natural factors, the performance is stable and reliable.
4.Photosensitive control of automatic metering: automatic recognition of the intensity of the environment light, to achieve the lighting requirements set and someone when the light is bright, otherwise it is not bright.
5.Working mode: induction switch is switched on, the delay time period, such as a human activity, the switch will continue to turn, until the people left and postponed the time.
6.Automatic random delay: when people in the induction range of activities, switches are always connected, until the person left after the automatic shutdown
7.Compared with the infrared microwave induction switch products: distance, wide angle, no dead zone, can penetrate the glass, and thin wood, according to different power, different thickness can penetrate walls, not affected by environmental temperature, dust, etc., in 37 cases, the induction distance will not be shortened. The anti interference ability of microwave radar is strong, which is almost not affected by wind, heat and other environmental factors. Is the ideal of the human body infrared pyroelectric induction switch replacement products.
Use scope: corridors, bathrooms, basements, garages, warehouses, and other energy-saving lighting automatic monitoring.
Product key word: 3.5G signal microwave induction,
5.8G signalmicrowave induction, microwave induction,
radar sensor,
Microwave induction module,
Radar sensor module,
Human body induction module,
Small sensor module,
Microwave mobile sensor module,
Radar sensor module,
Radar sensor,
Microwave induction sensor,
Microwave radar sensor module