R3111H341C-T1-FE

Supervisors Overview

The R3111H341C-T1-FE is a CMOS-based low voltage detector supervisory circuit manufactured by Ricoh Electronic Devices. It operates within a supply voltage range of 0.7 V to 10 V with an ultra-low operating current of 1.2 µA. The device features a fixed detector threshold voltage of 3.4 V with high accuracy of ±2%. It utilizes an SOT-89-3 package and provides a CMOS output type. The component supports power failure detection and includes a backup function for battery systems, functioning without manual reset or watchdog timer capabilities.

Supervisors Feature Summary

• CMOS-based architecture enabling operation at extremely low voltages down to 0.7 V
• High detector threshold accuracy of ±2% for reliable system monitoring
• Ultra-low supply current consumption of 1.2 µA for energy efficiency
• Integrated power failure detection and battery backup switching functionality

Supervisors Applications

• System reset circuits in portable electronic devices
• Battery-powered equipment requiring low voltage supervision
• Power supply support circuits for microprocessors
• Backup switching mechanisms in battery-operated systems

Supervisors Procurement Notes

Verify the specific manufacturer designation, as Ricoh Electronic Devices may be listed under Nisshinbo Micro Devices in distribution channels. Confirm the package variant matches the required SOT-89-3 form factor. Ensure the threshold voltage specification aligns with the 3.4 V requirement for the target application design.

Supervisors Selection Notes

Select this component when a fixed 3.4 V threshold is required rather than an adjustable one. Choose this part over the R3111H341A series if a CMOS output driver is preferred over open-drain configurations. Consider the SOT-89-3 package constraints for PCB layout and thermal management requirements.

Supervisors Part Context

This component belongs to the R3111x series of low voltage detectors designed for high accuracy and low power consumption. The series offers various output types and packages, including TO-92, SOT-23, and SOT-89. The R3111H341C-T1-FE specifically represents the CMOS output variant with a fixed 3.4 V threshold in the SOT-89-3 package.

Supervisors FAQ

Is the detector threshold voltage adjustable?

No, the R3111H341C-T1-FE has a fixed internal detector threshold voltage of 3.4 V.

What is the maximum operating supply voltage?

The maximum operating supply voltage is 10 V.