R3114K301A-TR

Supervisors Overview

The R3114K301A-TR is a voltage detector from the Nisshinbo Micro Devices R3114K series, designed for monitoring single-channel power supplies. It features an open-drain output and operates within a supply voltage range of 0.5 V to 6 V. The device detects a threshold voltage of 3 V with an accuracy of 0.8%. Key electrical parameters include a reset delay time of 40 µs, a quiescent current of 1.5 µA, and a maximum power dissipation of 400 mW. It supports battery backup switching and lacks manual reset or watchdog timer functions. The component is housed in a DFN-PLP-1010-4 package and operates between -40°C and +85°C.

Supervisors Feature Summary

• Provides precise voltage supervision with high detection accuracy for stable system operation.
• Enables low-power monitoring through minimal operating current consumption suitable for battery applications.
• Supports seamless power source transitions via integrated battery backup switching functionality.

Supervisors Applications

• Portable electronic devices requiring efficient power management
• Battery-operated equipment needing voltage level supervision
• Embedded systems utilizing low-voltage power rails

Supervisors Procurement Notes

Verify the specific suffix and marking code against the manufacturer's official datasheet to confirm the exact threshold voltage and package variant. Ensure compatibility with your PCB footprint, specifically the DFN-PLP-1010-4 dimensions. Cross-reference the part number with authorized distributors to validate authenticity and check for any recent product lifecycle changes or obsolescence notices before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 3 V threshold is required for single-input voltage monitoring. Consider the 0.8% accuracy specification for applications demanding tight voltage tolerance. Evaluate the 1.5 µA quiescent current against system power budgets, particularly for battery-powered designs. Confirm that the open-drain output interface aligns with the downstream logic requirements and that the absence of a manual reset function meets the system design constraints.

Supervisors Part Context

This part belongs to the R3114K series of supervisory circuits manufactured by Nisshinbo Micro Devices. The series focuses on low-voltage, low-current voltage detectors optimized for portable electronics. The R3114K301A-TR specifically denotes the 3 V threshold variant packaged in a compact surface-mount format, distinguishing it from other threshold options within the same family.

Supervisors Replacement Considerations

Consult the official Nisshinbo Micro Devices documentation for verified substitute part numbers within the R3114K series that match the required threshold voltage and package type. Do not assume functional equivalence with generic voltage detectors without verifying pinout, output type, and electrical specifications against the original datasheet.