Product Overview
The Broadcom ezPyro SMD I2C Pyroelectric IR sensors are designed for high-sensitivity, rapid flame detection. These thin-film digital sensors integrate configurable electronics in a compact SMD package, offering a high dynamic range for detecting flames of various sizes and distances. They feature a digital current-mode readout with high responsivity across the 3 to 30 Hz flame flicker frequency range. Programmable gain and filtering provide design flexibility, while industry-standard I2C communication ensures plug-and-play connectivity to microcontrollers for easy tuning and calibration. These sensors are noted for their long-term stability, ensuring a maintenance-free operational lifespan. Various optical filter options are available, and devices can be daisy-chained for synchronized sampling. Low-power modes are also supported.
Product Attributes
- Brand: Broadcom ezPyro
- Sensor Type: Pyroelectric Infrared Flame Sensor
- Package Type: SMD
- Communication Interface: I2C (FM+ compatible)
- Readout: Digital, Current Mode
- Filter Options: Various optical filter options available
- Power Modes: Multiple low-power modes
Technical Specifications
| Specification | Value | Details |
|---|---|---|
| Filter Aperture Diameter | 1.65 mm | |
| Element Size | 0.64 x 0.64 mm | |
| SMD Package Dimensions | 5.65 x 3.7 x 1.55 mm | |
| Supply Voltage | 1.75 to 3.6 V | |
| Supply Current (typ.) | 1 to 23 A | |
| Digital I/O | I2C (FM+ compatible) | |
| D* (typ.) | 2.5 x 10 cmHz/W | Measured without a filter @ 500K, 10 Hz, room temperature |
| NEP (typ.) | 2.7 x 10 W/Hz | |
| ADC | 15bit ADC @1ksp | |
| Operating Temperature | 40 to +85 C | |
| Storage Temperature | 40 to +110 C | |
| Time Constant | ~10ms | (10-20 Hz peak) |
| Field of View | ~90 | |
| Configurable Features | Gain / digital filtering / sampling rate / power modes | |
| Part Number | Marking | Filter m |
| AFBR-S6EPY12111R | Y12111 | 5.00 Long Pass |
| AFBR-S6EPY12211R | Y12111 | 3.91 |
| AFBR-S6EPY12251R | Y12111 | 4.48 |
| Power Mode | Max ADC Sampling Rate (sps) | Typical Current Consumption (1.8 V, room temperature) |
| Normal Power Mode | 1000 | 22 A |
| Low Power Mode | 166 | 3.5 A |
| Operational State | Current Consumption | Description |
| Normal Operation Mode | 22 A | Sensor signal readout over I2C |
| Sleep Mode | 21 A (Normal), 3.5 A (Low) | Hardware interrupt on infrared trigger |
| Power Down Mode | 1.1 A | Sensor is disabled |
2411272152_Broadcom-AFBR-S6EPY12251R_C17352575.pdf
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