R3111D111A-TR-FE

Supervisors Overview

The R3111D111A-TR-FE is a low voltage detector supervisory circuit manufactured by Nisshinbo Micro Devices. It operates within a supply voltage range of 0.7 V to 10 V and features a threshold voltage of 1.1 V. The device utilizes an open-drain output configuration and provides a reset delay time of 100 µs. It is housed in a compact SOT-563 package, suitable for surface mount applications across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Monitors input voltage levels to detect under-voltage conditions
• Generates a reset signal via open-drain output when voltage drops below threshold
• Includes internal reset delay timer to ensure stable operation during power transitions

Supervisors Applications

• Battery-powered portable devices requiring low voltage monitoring
• Embedded systems needing reliable power supervision
• Consumer electronics with strict power management requirements

Supervisors Procurement Notes

Verify the specific package type (SOT-563) and threshold voltage (1.1 V) against your design requirements. Confirm RoHS compliance status and check for any lead-free manufacturing specifications. Ensure compatibility with your PCB footprint and reflow soldering profile. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Supervisors Selection Notes

Select this component if your application requires a single-channel voltage detector with a 1.1 V threshold. Consider the SOT-563 package size for space-constrained designs. Evaluate the 100 µs reset delay against your system's startup timing needs. Compare operating current consumption if battery life is critical. Verify that the open-drain output interface matches your microcontroller or logic input requirements.

Supervisors Part Context

This part belongs to the R3111D series of supervisory circuits from Nisshinbo Micro Devices. The series offers various threshold voltages and packages to suit different monitoring needs. The R3111D111A variant specifically targets applications requiring precise detection at 1.1 V. It complements other PMIC solutions by providing dedicated voltage supervision functionality.

Supervisors Replacement Considerations

Check for direct pin-to-pin replacements within the same series offering different thresholds. Verify functional equivalence regarding reset delay and output type. Consult manufacturer cross-reference guides for alternative packages like SOT-23-5 if form factor changes are acceptable.