R3111Q211C-TR-FE

Supervisors Overview

The R3111Q211C-TR-FE is a CMOS-based low voltage detector manufactured by Nisshinbo Micro Devices. It features a fixed threshold voltage of 2.1 V with an accuracy of 2%. The device operates within a supply voltage range of 0.7 V to 10 V and consumes a typical operating current of 1.2 µA. It provides a CMOS output type and includes a backup switch function for battery monitoring. The component supports power failure detection and is housed in an SC-82AB-4 package, suitable for surface mount applications across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• CMOS output driver configuration for direct logic interface compatibility
• Integrated backup switch functionality designed for battery monitoring applications
• Power failure detection capability to identify supply voltage anomalies

Supervisors Applications

• Battery backup switching circuits
• System reset supervision
• Low voltage detection in portable devices

Supervisors Procurement Notes

Verify the specific suffix 'C' indicates the CMOS output type as documented. Confirm the 'TR-FE' designation corresponds to the reel packaging format. Ensure the manufacturer is identified as Nisshinbo Micro Devices or its predecessor Ricoh Electronic Devices for accurate sourcing. Cross-reference the SC-82AB-4 package dimensions against PCB footprint requirements prior to procurement.

Supervisors Selection Notes

Select this component when a fixed 2.1 V threshold is required for system supervision. The CMOS output is suitable for interfacing directly with digital logic without additional pull-up resistors. Consider the 1.2 µA quiescent current for ultra-low power designs. Verify that the 10 V maximum input voltage aligns with the target application's supply rails.

Supervisors Part Context

This part belongs to the R3111Q series of low voltage detectors from Nisshinbo. The series offers various threshold voltages and output types, including open drain and CMOS configurations. The R3111Q211C specifically denotes the 2.1 V threshold variant with CMOS output, distinguishing it from open-drain counterparts like the R3111Q211A.

Supervisors Replacement Considerations

R3111Q211A-TR-FE (Open Drain output, same threshold)

Supervisors FAQ

What is the output type of the R3111Q211C?

The R3111Q211C features a CMOS output type.

Does this device include a manual reset function?

No, the R3111Q211C does not have a manual reset function.