R3111N182C-TR-FE

Supervisors Overview

The R3111N182C-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 1.8 V, with specific overvoltage and undervoltage thresholds at 1.836 V and 1.764 V respectively. The device offers 2% accuracy and consumes 1 uA of operating current. It utilizes a CMOS output type and includes a battery backup switch. The component is housed in an SOT-23-3 package and functions across a temperature range of -40 C to +85 C.

Supervisors Feature Summary

• Integrates a battery backup switch for continuous monitoring during power transitions
• Provides high detection accuracy with a specified tolerance of 2 percent
• Features ultra-low power consumption suitable for battery-operated systems

Supervisors Applications

• Monitoring battery voltage levels in portable electronic devices
• Supervising power supply rails in embedded control systems
• Detecting under-voltage conditions in low-power microcontroller circuits

Supervisors Procurement Notes

Verify the exact threshold voltage configuration against the official datasheet before integration, as suffixes may indicate specific voltage variants. Confirm that the SOT-23-3 package footprint matches the design layout. Ensure the operating temperature range meets the environmental requirements of the final application. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Supervisors Selection Notes

Select this component when a fixed 1.8 V detection point is required for single-input monitoring. The CMOS output interface is suitable for direct connection to digital logic inputs without additional pull-up resistors. Consider the 1 uA quiescent current for applications where standby power efficiency is critical. The absence of a manual reset function simplifies circuit design if external reset control is not needed.

Supervisors Part Context

This part belongs to the R3111N series of supervisory circuits designed for low-voltage detection. The series provides various threshold options to accommodate different system voltage requirements. The R3111N182C-TR-FE specifically targets applications requiring precise monitoring around the 1.8 V level, commonly used in older CMOS logic families or specific sensor interfaces.

Supervisors FAQ

Does the R3111N182C-TR-FE include a manual reset function?

No, the device does not feature a manual reset input; it operates automatically based on the detected voltage levels.

What is the output type of this voltage detector?

The R3111N182C-TR-FE utilizes a CMOS output type, which allows for direct interfacing with standard digital logic circuits.