R3111Q351C-TR-FE

Supervisors Overview

The R3111Q351C-TR-FE is a CMOS-based low voltage detector IC manufactured by Ricoh (Nisshinbo Micro Devices). It features a fixed detector threshold voltage of 3.5V with high accuracy. The device operates within a supply voltage range of 0.7V to 10V and consumes ultra-low supply current, typically around 1.4µA. It provides a push-pull CMOS output driver and includes internal hysteresis to prevent output oscillation during threshold transitions. The component is housed in a compact SC-82AB package.

Supervisors Feature Summary

• CMOS technology for ultra-low power consumption
• Fixed high-accuracy detector threshold voltage
• Push-pull output driver configuration
• Internal hysteresis circuit for noise immunity

Supervisors Applications

• System reset circuits in portable devices
• Battery backup switching monitoring
• Voltage supervision in microcontroller systems
• Power failure detection in embedded applications

Supervisors Procurement Notes

Verify the manufacturer designation as Ricoh or Nisshinbo Micro Devices, as both entities are associated with this product line. Confirm the specific suffix 'TR-FE' indicates the tape-and-reel packaging format and environmental compliance status. Ensure the SC-82AB package code matches the physical footprint requirements of the target PCB design before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a precise 3.5V monitoring point is required for system integrity. The push-pull output allows direct interfacing with digital logic without external pull-up resistors. Consider the operating temperature range of -40°C to +85°C for industrial or automotive environments. Verify that the 1.4µA quiescent current meets the standby power constraints of the application compared to higher-current alternatives.

Supervisors Part Context

This part belongs to the R3111x series of low voltage detectors, which are designed for battery-powered and portable electronic equipment. The series offers various threshold voltages and output types to suit different supervisory needs. The R3111Q351C-TR-FE specifically addresses applications requiring a 3.5V reference with robust noise rejection capabilities provided by its internal hysteresis.

Supervisors Replacement Considerations

Compatible substitutes include other parts from the R3111Q series with identical 3.5V thresholds and push-pull outputs, such as the R3111Q351C-N-FT. Verify pin compatibility and package dimensions (SC-82AB) to ensure mechanical interchangeability without PCB redesign.