RE46C105E14F

Sensor And Detector Interfaces Overview

The RE46C105E14F is a piezoelectric horn driver with an integrated voltage regulator and LED driver, manufactured by Microchip Technology. It operates within a supply voltage range of 6.0V to 13.8V and features low quiescent current of 3.5µA in standby mode. The device includes a low battery detection circuit with a threshold between 7.2V and 7.80V. It provides a regulated output selectable at 3.3V or 5V via the REGSEL pin. The component utilizes CMOS technology and is housed in a 14-pin DIP package.

Sensor And Detector Interfaces Feature Summary

• Integrated voltage regulation supporting 3.3V or 5V outputs
• Low battery detection circuitry for power management
• Open drain NMOS driver suitable for LED applications
• Feedback control pin designed for self-oscillating piezoelectric horns

Sensor And Detector Interfaces Applications

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

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix E14F against official documentation to confirm the 14-pin PDIP packaging configuration. Ensure that the selected variant matches the required operating temperature range of -40°C to 85°C. Cross-reference the datasheet revision DS22167A for any updates regarding absolute maximum ratings or electrical characteristics before finalizing procurement specifications.

Sensor And Detector Interfaces Selection Notes

Select this component for 9V battery-powered systems requiring low logic supply voltages. Consider the continuous output current limits of 30mA for horn drivers and 55mA for the regulator when designing load circuits. Evaluate the need for the integrated LED driver functionality versus external components based on system complexity and space constraints.

Sensor And Detector Interfaces Part Context

This part belongs to the RE46C105 series produced by R&E International, a subsidiary of Microchip Technology Inc. The series focuses on piezoelectric horn drivers with additional power management features. The E14F suffix specifically denotes the 14-pin Dual In-line Package (PDIP) variant available in standard or RoHS-compliant packaging.

Sensor And Detector Interfaces Replacement Considerations

Consult the official datasheet for direct substitute part numbers. Verify compatibility regarding pin configurations, operating voltage ranges, and thermal performance before implementing any alternative components in existing designs.