RE46C109S16TF

Sensor And Detector Interfaces Overview

The RE46C109S16TF is a piezoelectric horn driver and voltage regulator integrated circuit manufactured by Microchip Technology. It integrates a switched-capacitor charge pump to boost the supply voltage to approximately 12V for driving external horns, alongside a 3V low-dropout regulator for microprocessor support. The device operates on a supply voltage range of 6V to 12V with a maximum quiescent current of 6.5uA when inactive. It features low battery detection, power good monitoring, and bidirectional interconnect logic for multi-unit communication. The component is housed in a 16-pin SOIC package.

Sensor And Detector Interfaces Feature Summary

• Integrated 12V charge pump boost converter and piezoelectric horn driver
• Built-in 3V low-dropout voltage regulator for system logic
• Bidirectional interconnect pins for multi-device communication
• Low battery detection interface and power good status output

Sensor And Detector Interfaces Applications

• Smoke detectors
• Carbon monoxide (CO) detectors
• Personal security products
• Electronic games
• Hand held instruments

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix 'S16TF' against official documentation to confirm the tape-and-reel packaging format and RoHS compliance status. Ensure that the ordering quantity aligns with the manufacturer's standard reel size requirements. Confirm lead times directly with authorized distributors as production schedules may vary based on demand.

Sensor And Detector Interfaces Selection Notes

Select this component when a combined solution for high-voltage horn driving and low-voltage regulation is required. Verify that the application supports the 6V to 12V input range and requires the specific 12V boost capability. Ensure the PCB layout accommodates the necessary external capacitors for the charge pump and regulator stability.

Sensor And Detector Interfaces Part Context

This part belongs to the RE46C109 series from R&E International, a subsidiary of Microchip Technology. The series focuses on low-power analog interfaces for alarm systems. The S16TF designation indicates the specific surface-mount package variant and packaging method within the broader product family.

Sensor And Detector Interfaces Replacement Considerations

RE46C109S16F is a direct pin-compatible alternative available in tube packaging.