RE46C730IV28T

Sensor And Detector Interfaces Overview

The RE46C730IV28T is a high-voltage multicriteria smoke detector companion integrated circuit manufactured by Microchip Technology. It supports single photoelectric and carbon monoxide sensing applications. The device operates within a supply voltage range of 2.1 V to 3.6 V and draws a typical operating current of 300 nA. It features an analog output type and is housed in a 28-lead VQFN package with SMD/SMT mounting style. The component is rated for industrial temperatures, functioning between -20°C and +70°C. It utilizes photoelectric detection methods and is supplied in tape and reel packaging.

Sensor And Detector Interfaces Feature Summary

• Supports multicriteria detection combining photoelectric and carbon monoxide sensing capabilities
• Includes built-in demodulation and isolation functions for industrial applications
• Designed as a companion IC for high-voltage smoke detector systems

Sensor And Detector Interfaces Applications

• Industrial photoelectric smoke detectors
• Multicriteria smoke detection systems with CO sensing
• High-voltage smoke alarm companion circuits

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix IV28T against the official Microchip datasheet to confirm the industrial temperature grade and VQFN-28 package variant. Ensure compatibility with existing high-voltage front-end designs. Confirm that the analog output interface matches the host microcontroller or ADC requirements. Check for any recent lifecycle notices or recommended replacements from the manufacturer before finalizing procurement plans.

Sensor And Detector Interfaces Selection Notes

Select this component when designing industrial-grade smoke detectors requiring both photoelectric and carbon monoxide sensing. It is suitable for applications needing low standby current and robust isolation features. Consider the VQFN-28 footprint for PCB layout constraints. Verify that the 2.1 V to 3.6 V supply range aligns with the system power architecture. Ensure the analog output signal processing chain can handle the sensor data correctly.

Sensor And Detector Interfaces Part Context

This part belongs to the RE46 series of smoke detector companion ICs from Microchip Technology. These devices are designed to simplify the design of complex smoke alarms by integrating necessary signal conditioning and control logic. The RE46C730IV28T specifically targets industrial environments with its extended temperature range and enhanced isolation features compared to commercial variants.

Sensor And Detector Interfaces Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Microchip Technology directly for qualified alternatives or pin-compatible replacements if this specific model becomes unavailable.