RE46C145S16TF

Sensor And Detector Interfaces Overview

The RE46C145S16TF is a CMOS photoelectric smoke detector ASIC manufactured by Microchip Technology. It operates within a supply voltage range of 5V to 12V, with typical quiescent current consumption of 4µA at 9V and 5.5µA at 12V. The device supports interconnection of up to 40 detectors and features a 10-minute timer mode for sensitivity control. It provides temporal horn patterns compliant with NFPA 72 standards and includes internal low battery and chamber test diagnostics. The component is housed in a 16-lead Narrow SOIC package (SOICN) and functions across an operating temperature range of -25°C to +75°C.

Sensor And Detector Interfaces Feature Summary

• Supports interconnection of multiple detectors for synchronized alarm signaling
• Includes internal diagnostic modes for low battery detection and chamber integrity testing
• Features a programmable 10-minute timer mode to adjust sensitivity thresholds
• Generates temporal horn patterns compatible with emergency evacuation signal standards

Sensor And Detector Interfaces Applications

• Photoelectric smoke detection systems requiring low standby power
• Multi-unit interconnected fire alarm networks
• Smoke detectors utilizing push-button chamber testing functionality
• Alarm devices incorporating hush or timer modes for temporary sensitivity reduction

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix 'T' confirms tape and reel packaging rather than tube. Confirm the 'S' suffix indicates the narrow SOIC package variant. Ensure the component meets RoHS3 compliance requirements for your assembly process. Check for moisture sensitivity level classifications prior to soldering. Validate that the datasheet revision matches your design specifications.

Sensor And Detector Interfaces Selection Notes

Select this component when designing photoelectric smoke detectors requiring minimal external circuitry. Consider the 16-lead narrow SOIC package for surface mount applications. Evaluate the low quiescent current consumption for battery-operated designs. Verify compatibility with infrared emitter/detector pairs used in the optical chamber. Assess the need for interconnect capabilities if deploying multiple units.

Sensor And Detector Interfaces Part Context

The RE46C145 series comprises CMOS photoelectric smoke detector integrated circuits designed for standalone or interconnected configurations. The S16 suffix denotes the 16-lead narrow SOIC package option. The T suffix indicates tape and reel packaging suitable for automated assembly processes. This family of components integrates analog front-end processing with digital timing and control logic.

Sensor And Detector Interfaces Replacement Considerations

RE46C145SW16TF is a direct substitute offering wide SOIC packaging instead of narrow SOIC.