RE46C100E8F

Sensor And Detector Interfaces Overview

The RE46C100E8F is a CMOS piezoelectric horn driver circuit manufactured by Microchip Technology. It operates within a supply voltage range of 2V to 16V and features low quiescent current consumption, typically less than 100 nA when disabled. The device provides a push-pull output stage with a typical on-resistance of 20 ohms at 9V. It supports both self-oscillating three-terminal horns and direct drive two-terminal configurations via the FEED pin. The component is housed in an 8-pin plastic dual in-line package (PDIP) with a 300 mil body width.

Sensor And Detector Interfaces Feature Summary

• Integrated push-pull driver circuitry for efficient piezoelectric transducer actuation
• Configurable feedback input supporting both self-oscillating and external signal drive modes
• Logic-controlled horn enable function for active high activation and silencing
• Ultra-low standby power consumption suitable for battery-operated applications

Sensor And Detector Interfaces Applications

• Smoke detectors
• Carbon monoxide detectors
• Personal security products
• Electronic toys

Sensor And Detector Interfaces Procurement Notes

Verify the ordering suffix E8F corresponds to the 8-lead PDIP package and lead-free status as defined in the Product Identification System. Confirm that the specific revision level matches the design requirements, noting that package availability may vary across the RE46C100 family. Ensure compatibility with existing PCB footprints for the 300 mil body DIP format before finalizing procurement orders.

Sensor And Detector Interfaces Selection Notes

Select this component when a dedicated horn driver with minimal external components is required. The RE46C100E8F is appropriate for designs utilizing standard through-hole assembly processes. Consider alternative packages such as DFN or SOIC if space constraints or surface mount technology are necessary, while maintaining the same core electrical characteristics and functionality.

Sensor And Detector Interfaces Part Context

The RE46C100 series comprises CMOS photoelectric smoke detector ASICs designed primarily for driving piezoelectric horns. The RE46C100E8F variant specifically denotes the 8-lead Plastic Dual In-Line package configuration. This part belongs to a broader family that includes variants with tape and reel packaging or different package types like DFN and SOIC, all sharing identical internal circuitry.

Sensor And Detector Interfaces Replacement Considerations

Direct substitutes include other members of the RE46C100 family such as RE46C100D8F (DFN package) or RE46C100S8F (SOIC package). These alternatives share the same functional block diagram and electrical specifications but differ in physical footprint and mounting style. Verify pinout compatibility and thermal management requirements when switching between package types.