R3112Q221C-TR-FE

Supervisors Overview

The R3112Q221C-TR-FE is a CMOS-based low voltage detector from the Nisshinbo R3112x series, designed for system reset applications. It features a fixed threshold voltage of 2.2 V with high accuracy and operates at an extremely low supply voltage ranging from 700 mV to 6 V. The device incorporates an output delay circuit and provides an open-drain output type. It is housed in a compact SC-82AB-4 package and supports a backup switch function.

Supervisors Feature Summary

• CMOS-based architecture enabling operation at extremely low voltages
• Integrated output delay circuit for stable signal generation
• Fixed internal threshold voltage requiring no external adjustment
• Backup switch capability for power failure detection

Supervisors Applications

• System reset circuits
• Power supply monitoring
• Battery backup switching

Supervisors Procurement Notes

Verify the specific suffix 'FE' against official datasheets to confirm package and tape/reel specifications. Ensure the SC-82AB-4 package matches design constraints. Confirm RoHS compliance status through manufacturer documentation before integration.

Supervisors Selection Notes

Select this component when a fixed 2.2 V threshold with open-drain output is required. The SC-82AB-4 package offers space efficiency. Verify that the 100 ms reset delay meets timing requirements for the target application logic.

Supervisors Part Context

Part of the R3112x series, which includes variants with different packages like SOT-23-5 and SON1612-6. This model specifically utilizes the SC-82AB-4 form factor. Other series members may offer CMOS outputs or different threshold accuracies.

Supervisors Replacement Considerations

R3112Q221A-TR-FE shares similar electrical characteristics but differs in output type (Open Drain vs CMOS) and package (SC-82AB-4 vs SC-82AB-4). Verify output driver compatibility before substitution.