RE46C105S14TF

Sensor And Detector Interfaces Overview

The RE46C105S14TF is a piezoelectric horn driver with an integrated voltage regulator and LED driver, manufactured by Microchip Technology. It operates on a supply voltage (Vdd) ranging from 6.0V to 13.8V, with a typical standby current of 3.5µA. The device features a low battery detection threshold between 7.2V and 7.8V. The internal regulator provides outputs at either 3.7V to 4.3V or 5.5V to 6.5V depending on the REGSEL pin configuration. It includes continuous output currents of 30mA for horn drivers and 55mA for the regulator output. The component is housed in a 14-pin SOIC package.

Sensor And Detector Interfaces Feature Summary

• Integrated voltage regulation supporting selectable 3.3V or 5V logic supplies
• Open drain NMOS driver designed for light emitting diode applications
• Low quiescent current consumption suitable for battery-powered devices
• Built-in low battery detection circuit with defined hysteresis

Sensor And Detector Interfaces Applications

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

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix 'S14TF' against official documentation to confirm packaging type and RoHS compliance status. Ensure that the ordering information matches the required lead times and minimum order quantities provided by authorized distributors. Confirm that the component meets all environmental regulations applicable to your region before finalizing procurement.

Sensor And Detector Interfaces Selection Notes

Select this component when designing 9V battery-operated systems requiring a dedicated piezoelectric horn driver. The integrated voltage regulator simplifies power management by providing stable logic levels. Consider the low standby current for extended battery life requirements. Verify that the operating temperature range of -40°C to 85°C aligns with the intended application environment.

Sensor And Detector Interfaces Part Context

The RE46C105 belongs to the R&E International family of piezoelectric horn drivers, now part of Microchip Technology. This series is optimized for low-voltage logic applications powered by single-cell batteries. The device integrates multiple functions into a single chip to reduce board space and component count in compact alarm and security devices.

Sensor And Detector Interfaces Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the same product family. Verify electrical characteristics such as supply voltage ranges and output currents before substituting. Ensure that any replacement component maintains compatibility with existing PCB layouts and regulatory certifications.