SMD Package Pyroelectric Sensor Broadcom AFBR-S6EPY12231R with Consumption and Daisy Chain Capability
Product Overview
The ezPyroTM range of thin film digital pyroelectric IR sensors are designed for gas detection and concentration measurement. These sensors combine high-quality sensing elements with configurable electronic integration in a compact SMD package. Featuring high sensitivity and fast response times, they ensure rapid and accurate detection of target gases. The integrated digital, current-mode read-out allows for lower IR-emitter duty cycles, significantly reducing system-level power consumption while maintaining a high signal-to-noise ratio (SNR). Programmable gain and filtering provide flexibility in system design, and industry-standard I2C communication ensures plug-and-play connectivity to microcontrollers for easy tuning and calibration. ezPyro sensors offer high stability over time, ensuring a long and maintenance-free operational lifespan. Various optical filter options are available, and sensors can be daisy-chained for synchronized sampling.
Product Attributes
- Brand: ezPyroTM
- Sensor Type: Pyroelectric Infrared Sensor
- Package Type: SMD
- Communication Interface: I2C (FM+ compatible)
- Read-out: Current mode
- ADC: 15bit ADC
- Filter Aperture: d = 1.65 mm
- Element Size: 0.64 x 0.64 mm
- Package Dimensions: 5.65 x 3.7 x 1.55 mm
- Field of View: ~90
- Time Constant: ~10ms (10-20 Hz peak)
- Optical Filter Options: Available
- Daisy-chaining: Supported
Technical Specifications
| Specification | Value | Notes |
|---|---|---|
| Supply Voltage | 1.75 to 3.6 V | |
| Supply Current (typ.) | 1 to 23 A | |
| D* (typ.) | 2.5 x 108 cmHz/W | Measured without filter @ 500K, 10 Hz, room temperature |
| NEP (typ.) | 2.7 x 10-10 W/Hz | |
| Operating Temperature | -40 to +85 C | |
| Storage Temperature | -40 to +110 C | |
| Configurable Features | Gain / digital filtering / sampling rate / power modes | |
| Part Number | AFBR-S6EPY12211R | Marking: Y12211, Filter: 3.91 m, Filter BW: 90 m, Gas: Reference, Package: 800 pcs on 7-in. tape and reel |
| Part Number | AFBR-S6EPY12231R | Marking: Y12231, Filter: 4.26 m, Filter BW: 180 m, Gas: CO2, Package: 800 pcs on 7-in. tape and reel |
| Power Mode | Normal Power Mode | Max ADC Sampling Rate: 600 sps, Typical Current Consumption: 22 A (1.8 V, room temperature) |
| Power Mode | Low Power Mode | Max ADC Sampling Rate: 166 sps, Typical Current Consumption: 3.5 A (1.8 V, room temperature) |
| Operational State | Normal Operation Mode | Sensor signal readout over I2C, 22 A |
| Operational State | Sleep Mode | Hardware interrupt on infrared trigger, 21 A (Normal), 3.5 A (Low) |
| Operational State | Power Down Mode | Sensor is disabled, 1.1 A |
| High Pass Filter Analog (Hz) | Off, 1, 2, 4, 8 | (Base sample rate dependent) |
| Fixed Analog Low Pass Filter (Hz) | 600, 250, 180, 90, 45, 22.5 | (Base sample rate dependent) |
| Fixed Digital Low Pass Filter (Hz) | 100, 42, 30, 15, 7.5, 3.75 | (Base sample rate dependent) |
| Digital Low Pass Filter (Hz) | 1000, 250, 180, 90, 45, 22.5 | (Base sample rate dependent) |
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