RE46C117E8F

Sensor And Detector Interfaces Overview

The RE46C117E8F is a DC-to-DC converter and piezoelectric horn driver designed for 3V or 4.5V battery applications. It integrates an up-converter to drive piezoelectric horns with low quiescent current. The device operates within a supply voltage range of 2.0V to 5.0V, featuring a standby supply current of 14µA and a typical quiescent supply current of 7µA. It provides a 10V output from the up-converter and supports continuous operating currents up to 40mA on the horn outputs. The component functions within an operating temperature range of 0°C to 50°C.

Sensor And Detector Interfaces Feature Summary

• Integrates a DC-to-DC up-converter suitable for driving piezoelectric horns
• Features low quiescent current for extended battery life in portable devices
• Includes a low resistance horn driver stage

Sensor And Detector Interfaces Applications

• Smoke detectors
• CO Detectors
• Personal Security Products
• Electronic Toys

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix E8F against official Microchip documentation to confirm packaging details and RoHS compliance status. Ensure that ordering quantities align with manufacturer minimums and standard packaging configurations. Cross-reference the datasheet revision DS22159B for any updates regarding electrical characteristics or recommended external components like Schottky diodes and inductors.

Sensor And Detector Interfaces Selection Notes

Select this component for battery-operated systems requiring a compact solution for piezoelectric sound generation. Consider the total series resistance constraints, including inductor DC resistance and internal battery resistance, which must not exceed 0.3 ohm for proper operation at low input voltages. Ensure adequate decoupling with a low ESR capacitor of 10uF or more connected in parallel with the battery.

Sensor And Detector Interfaces Part Context

The RE46C117 belongs to the R&E International product line, now a subsidiary of Microchip Technology Inc. This family of devices focuses on power management solutions specifically tailored for acoustic signaling in low-power consumer electronics. The part number indicates a specific package and environmental compliance variant within the broader RE46C117 series.

Sensor And Detector Interfaces Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative drivers based on similar pinout compatibility and electrical specifications if direct replacement is required.