R3117K091C-TR

Supervisors Overview

The R3117K091C-TR is a voltage detector IC manufactured by Nisshinbo Micro Devices. It features a CMOS structure for low power consumption and includes an internal delay circuit to prevent false triggering during power-up. The device monitors supply voltage and outputs a reset signal when the voltage drops below a specific threshold. Key electrical parameters include a detection voltage of 2.9V, a release voltage of 3.1V, and a typical operating current of 0.4µA. It operates within a voltage range of 0.7V to 5.5V and supports active-low or active-high output configurations.

Supervisors Feature Summary

• CMOS technology ensures ultra-low current consumption for battery-powered applications
• Internal delay circuit prevents erroneous reset operations during power transitions
• Wide operating voltage range suitable for various digital logic families
• Compact SOT-23-5 package design minimizes board space requirements

Supervisors Applications

• Microprocessor reset circuits in portable electronic devices
• Battery voltage monitoring systems
• Brown-out detection in embedded systems
• Power management units requiring low quiescent current

Supervisors Procurement Notes

Verify the exact suffix '091C' corresponds to the required detection voltage and output polarity before ordering. Confirm the 'TR' designation indicates tape-and-reel packaging if automated assembly is planned. Cross-reference with official Nisshinbo Micro Devices documentation to ensure compatibility with your system's voltage thresholds and timing requirements.

Supervisors Selection Notes

Select this component when precise voltage monitoring with minimal power draw is critical. Ensure the detection voltage matches your system's minimum operating requirement. Consider the output polarity (active-low/high) based on the connected microcontroller input logic. Verify that the package type fits your PCB layout constraints.

Supervisors Part Context

This part belongs to the R3117 series of voltage detectors designed for general-purpose reset generation. The series offers multiple fixed detection voltages to accommodate different logic families. The R3117K091C-TR specifically targets applications requiring reliable reset signals under low-power conditions.

Supervisors Replacement Considerations

Check for direct pin-compatible alternatives from Nisshinbo or other manufacturers offering similar detection voltages and package types. Ensure replacement parts maintain equivalent delay times and output drive capabilities to avoid system instability.