PROD Model: BX304
Window Size: 4*4mm
Output Signal:Digital signal output
Sensing Distance: 12M (lens SB-F-02)
See lens selection for different distances
Sensing Angle: 120° (horizontal direction)
Working Voltage: 2.2-3.7V
Static Power Consumption: <11uA
The BX304 is a pyroelectric infrared (PIR) sensor developed by Senba Sensing. The BX304 is designed for human body motion detection and provides a stable infrared sensing signal for motion detection circuits. The BX304 offers reliable detection performance in typical indoor environments. The BX304 is commonly used in motion detectors, security alarm systems, automatic lighting products, and other human presence detection applications
Digital signal processing,no drift and aging
High power supply rejection ratio,anti-radio frequency interference(mobile phone,WiFi ,etc.)
A second-order Butterworth bandpass filter with built-in infrared sensor to shield input interference at other frequencies.
Good stability and effective suppression of repeated malfunctions
Low power consumption and simple application circuit
Ontime 2s
1. Absolute Maximum Ratings
Electrical characteristics (values beyond those listed below may cause permanent damage to the device. Exposure to absolute maximum ratings may affect device reliability.)
| Parameter | Symbol | Min | Max | Unit | Remarks |
|---|---|---|---|---|---|
| Operating Temp | TST | -30 | 70 | ℃ | |
| Current into any pin | Into | -100 | 100 | mA | |
| Storage Temp | TST | -40 | 80 | ℃ |
2. Operating Conditions (T=25°C, VDD=3V unless stated otherwise)
| Parameter | Symbol | Min | Typ | Max | Unit | Remarks |
|---|---|---|---|---|---|---|
| Regular voltage | VDD | 2.2 | 3 | 3.7 | V | |
| Supply current | IDD | 9 | 9.5 | 11 | μA | |
| Sensitivity threshold | VSENS | 90 | μV | |||
| Detective Wavelength | λ | 5 | 14 | μm | ||
| Outputs REL | ||||||
| Output current low | IOL | 10 | mA | VOL < 1V | ||
| Output current high | IOH | -10 | mA | VOH > (VDD-1V) | ||
| Low REL output locking time | TOL | 2 | s | Non-adjustable | ||
| High REL output delay time | TOH | 2 | s | |||
| Oscillator and Filter | ||||||
| LPF cutoff frequency | 7 | Hz | ||||
| HPF cutoff frequency | 0.44 | Hz | ||||
| On-chip oscillator frequency | FCLK | 64 | kHz | |||
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