RE46C100D8TF

Sensor And Detector Interfaces Overview

The RE46C100D8TF is a CMOS piezoelectric horn driver circuit manufactured by Microchip Technology. It operates within a supply voltage range of 2V to 16V and features a typical quiescent current below 100nA. The device provides a push-pull output stage with a typical on-resistance of 20Ω at 9V. It supports self-oscillating three-terminal horns or direct drive two-terminal configurations via the FEED pin. The component is housed in an 8-lead 2x3mm DFN package with an exposed thermal pad, designed for tape and reel delivery.

Sensor And Detector Interfaces Feature Summary

• Integrated feedback control and driver circuitry for self-oscillating piezoelectric horns
• Horn enable function allowing logic high activation and modulation via HRNEN pin
• Low quiescent current consumption suitable for battery-powered applications

Sensor And Detector Interfaces Applications

• Smoke detectors
• Carbon monoxide (CO) detectors
• Personal security products
• Electronic toys

Sensor And Detector Interfaces Procurement Notes

Verify the ordering suffix 'T' confirms tape and reel packaging and 'D' indicates the 8-lead DFN package. Confirm lead-free status through the JEDEC designator on outer packaging. Ensure the specific variant matches the required operating temperature range of -40°C to +85°C for the target application environment.

Sensor And Detector Interfaces Selection Notes

Select this part when driving self-oscillating piezoelectric horns requiring low standby current. The 2x3 DFN package offers a compact footprint compared to SOIC or PDIP options. Consider the exposed thermal pad connection to VSS for optimal thermal performance if operating near maximum voltage limits.

Sensor And Detector Interfaces Part Context

This component belongs to the RE46C100 family of piezoelectric horn drivers. The 'D8' designation specifically identifies the 8-lead DFN package format. Other variants in the series include SOIC and PDIP packages, offering flexibility in board layout and assembly methods while maintaining identical electrical characteristics.

Sensor And Detector Interfaces Replacement Considerations

Direct substitutes within the same family include RE46C100D8F (same package, tube packaging). For different packaging requirements, RE46C100S8TF (SOIC) or RE46C100E8F (PDIP) provide equivalent functionality with compatible pinouts.