Aolittel Technology Co.,Ltd
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Adjustable Low Noise Human Body Dectector PIR Module SB612 With Sensor Distance 10m Detecting Angle 120 Degree
Description
SB612A is a pyroelectric sensor module which developed for human body detection. An integrated
PIR sensor combined with a fresnel lens which is mounted on a compact PCB, and limited components to
form the module. Delay time, lux is adjustable. Customization is accepted.
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Features
| Type: | SB612 |
| Size: | 32*24mm |
| Supply Current: | DC3V~15V |
| Current Drain: | <20μA |
| Voltage Output: | Input::3V~15V OutPut:3.3V |
| Delay Time: | Delay time. Sensitivity . Lighting adjustable |
| Operation Temperaute: | -20℃~60℃ |
| Infrared Sensor: | Dual element,Low noise, High Sensitivity |
| Light Sensor: | CdS(Can be add as customer requirement) |
| TTL Output: | TTL Output can be directly connected to micro-controller or logic device |
| Sensitivity: | High Sensitivity |
Schematic Diagram
Lens
Lens diameter: 24mm (default), detecting angle≤120°, detecting range<10M.
Dimension (Unit:mm)
Application Guide
Funtions:
1. DC-INPUT: supply voltage (DC3.0V-12V)
2. TEST: test pin for output. With output, high level signal (3.0V); no output, low level signal (0V)
3. LOAD+: anode of the load. LOAD-: cathode of the load. Voltage of the load and .
DC-INPUT are the same. Max current with load is 100mA.
4. DARK_ADJ: Lux adjustment.
5. DELAY_TIME: delay time adjustment.
Parameter Setting
1. Input voltage and Quiescent current
The module must be added one LDO.
2. Sensitivity adjustment
A voltage applied to the SENS input sets the threshold used to detect a PIR Signal between the PIRIN
and NPIPIN inputs.VSS selects the minimum threshold voltage.Any voltage above VDD/4 will select
the maximum threshold,which is the least sensitive setting for PIR signal detection.
3. Light adjustment
When OEN voltage from low to high,when it higher 0.4DD(1.2V),Vout output enable. OEN voltage
from high to low,when lower 0.2VDD(0.6V),Vout output disable.
4. Delay time adjustment
| Step | ONTIME Center Voltage (V) | On time(s) | Voltage(V) | Pull-up resistor | Pull-down resistor |
| (VDD*(Step*2)+3)/128 | (Typical) | (VDD=3V) | |||
| 0 | 3/128 or lower | 2.3 | 0 | NO | 0R |
| 1 | (VDD*2+3)/128 | 4.7 | 0.07 | 1M | 24K |
| 2 | (VDD*4+3)/128 | 7 | 0.117 | 1M | 39K |
| 3 | (VDD*6+3)/128 | 9.4 | 0.164 | 1M | 56K |
| 4 | (VDD*8+3)/128 | 18.7 | 0.21 | 1M | 75K |
| 5 | (VDD*10+3)/128 | 37 | 0.257 | 1M | 91K |
| 6 | (VDD*12+3)/128 | 56 | 0.304 | 1M | 110K |
| 7 | (VDD*14+3)/128 | 1min 15 sec | 0.351 | 1M | 130K |
| 8 | (VDD*16+3)/128 | 2min 30 sec | 0.398 | 1M | 150K |
| 9 | (VDD*18+3)/128 | 5min | 0.445 | 1M | 174K |
| 10 | (VDD*20+3)/128 | 7min 29 sec | 0.492 | 1M | 200K |
| 11 | (VDD*22+3)/128 | 9min59 sec | 0.539 | 1M | 220K |
| 12 | (VDD*24+3)/128 | 19min 58 sec | 0.585 | 1M | 240K |
| 13 | (VDD*26+3)/128 | 39min 56sec | 0.632 | 1M | 270K |
| 14 | (VDD*28+3)/128 | 59min25 sec | 0.679 | 1M | 294K |
| 15 | (VDD*30+3)/128 or higher | 1hour20min | 3 | 0R | NO |
Note
Due to the high sensitivity of PIR sensor device, it is not recommended to use the module in the following
or similar condition.
A) in rapid environmental changes
B) in strong shock or vibration
C) in a place where there are obstructing material (eg. glass) through which IR cannot pass within
detection area.
D) exposed to direct sun light
E) exposed to direct wind from a heater or air condition