Jhm5001 is a signal conditioning IC for passive infrared red (PIR) sensor.The PIR sensor can sense the changing infrared signal. Jhm5001 can amplify the weak charge generated by the PIR sensor, convert the ADC in the chip into a 16 bit digital signal. After the digital filter processing, the algorithm unit judges whether the change of the PIR signal is caused by the movement of the external human body, and outputs the digital signal through the rel pin.The sensitivity and delay parameters of PIR sensor can be set by applying voltage to sens and ontime pins respectively. The voltage will be converted into 7-bit digital signal by internal ADC.
Based on digital signal processing
Integrated on chip voltage regulator, suitable for 2.5V ~ 5.5V supply voltage
Low power consumption, current ~ 30uA
Insensitive to RF interference
Input pin with adjustable sensitivity and on time
With light detection input pin, can prevent white light interference
With switch or relay control output pin and LED control output pin
Short stable time after power on
Avaliable in DFN8 and SOP8
Minimum circuit schematic for LED indication with intelligent PIR sensor.