CAT811JTBI-T3

Supervisors Overview

The CAT811JTBI-T3 is a voltage supervisory circuit manufactured by onsemi, designed for monitoring single power supply inputs. It features an active low push-pull output and includes a manual reset input for system control. The device operates within a supply voltage range up to 5.5 V and offers threshold voltages of 2.5 V, 3 V, 3.3 V, or 5 V. Packaged in a compact SOT-143-4 surface-mount format, it supports operation across an industrial temperature range from -40°C to +85°C with a typical quiescent current of 6 µA.

Supervisors Feature Summary

• Provides active low push-pull reset signal generation based on monitored supply voltage levels
• Includes dedicated manual reset input pin for external system initialization control
• Operates with low quiescent current consumption suitable for battery-powered applications
• Delivers reliable supervision in standard surface-mount packaging for space-constrained designs

Supervisors Applications

• Microprocessor power supply supervision
• Battery-operated electronic systems
• Industrial control board monitoring
• Consumer electronics power management

Supervisors Procurement Notes

Verify component authenticity through authorized distribution channels due to the presence of obsolete status indicators in public records. Confirm specific threshold voltage variants against design requirements as multiple options exist within the series. Check end-of-life documentation for long-term availability constraints before finalizing procurement plans.

Supervisors Selection Notes

Select this component when active low reset signaling is required alongside manual reset capability. Ensure the chosen threshold voltage matches the target supply rail precisely. Consider the SOT-143-4 footprint compatibility during PCB layout phase. Evaluate thermal performance limits relative to expected ambient operating conditions.

Supervisors Part Context

This part belongs to the CAT811 series of microprocessor supervisors. The series provides essential power management functions including under-voltage detection and reset generation. Variants differ primarily in threshold voltage settings and output polarity configurations while maintaining consistent package dimensions and functional interfaces.

Supervisors Replacement Considerations

CAT811STBI-GT3 serves as a verified alternative within the same manufacturer lineup offering similar supervisory functionality.