R3111N302A-TR-FE

Supervisors Overview

The R3111N302A-TR-FE is a low voltage detector manufactured by Nisshinbo Micro Devices. It operates within a supply voltage range of 700 mV to 10 V and features a threshold voltage of 3 V, with specific over-voltage and under-voltage thresholds at 3.06 V and 2.94 V respectively. The device draws a typical operating current of 1.2 uA and offers an accuracy of 2%. It utilizes an open-drain output type without manual reset or watchdog timer functions. The component is housed in an SOT-23-5 package and supports battery backup switching.

Supervisors Feature Summary

• Provides precise voltage monitoring with high accuracy for single-input detection
• Enables continuous operation during power failures via battery backup switching capability
• Delivers reliable supervision through open-drain output configuration

Supervisors Applications

• Monitoring battery levels in portable electronic devices
• Supervising power rails in embedded systems requiring low quiescent current
• Ensuring system stability in microcontroller-based circuits

Supervisors Procurement Notes

Verify the exact threshold voltage specifications against the official datasheet before integration, as variations exist within the R3111N series. Confirm that the SOT-23-5 package footprint matches your PCB design requirements. Ensure compatibility with your system's logic levels given the open-drain output structure. Cross-reference the manufacturer part number to avoid confusion with similar models like the R3111Q series which may have different pinouts or packages.

Supervisors Selection Notes

Select this component when a low supply voltage start-up capability below 1 V is required alongside a 3 V detection threshold. The low operating current makes it suitable for battery-powered applications where energy efficiency is critical. Consider the open-drain output if level shifting or wired-OR configurations are needed in the design. Verify thermal performance within the specified operating temperature range of -40 C to +85 C.

Supervisors Part Context

This part belongs to the R3111N series of low voltage detectors from Nisshinbo Micro Devices. The series is characterized by ultra-low power consumption and high precision voltage monitoring capabilities. These components are designed for use in portable devices and industrial applications requiring reliable power supervision with minimal impact on overall system power budget.

Supervisors FAQ

Does the R3111N302A-TR-FE include a manual reset function?

No, the R3111N302A-TR-FE does not support manual reset functionality.

What is the maximum supply voltage for this detector?

The maximum supply voltage for the R3111N302A-TR-FE is 10 V.