CAT810ZTBI-GT3

Supervisors Overview

The CAT810ZTBI-GT3 is a single-channel voltage supervisory circuit manufactured by onsemi, designed for monitoring power supply integrity in electronic systems. It operates within a supply voltage range of 1.2 V to 5.5 V and features an active high push-pull output. The device triggers at a threshold voltage of 4 V, with specific under-voltage and over-voltage thresholds documented at 3.93 V and 4.06 V respectively. It includes a fixed reset delay time of 240 ms and consumes a typical operating supply current of 8 uA. The component is housed in a SOT-23-3 surface-mount package and supports an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides continuous monitoring of a single power rail with active high push-pull output signaling
• Features low quiescent current consumption suitable for battery-powered applications
• Includes a fixed internal reset delay timer to ensure stable power-up sequencing

Supervisors Applications

• Microprocessor power supply supervision
• Portable electronic device power management
• Industrial control system voltage monitoring

Supervisors Procurement Notes

Verify the obsolete status and end-of-life designation before procurement planning. Confirm availability through authorized distributors or secondary market suppliers as standard production may be discontinued. Ensure compatibility with existing PCB footprints and validate that the 4 V threshold meets the specific design requirements for the target application voltage rails.

Supervisors Selection Notes

Select this component when a simple, low-power voltage supervisor with a 4 V threshold is required. The SOT-23-3 package offers space efficiency for compact designs. Consider the 240 ms reset delay and active high output polarity during interface design. Verify that the 8 uA supply current aligns with the system's power budget constraints.

Supervisors Part Context

This part belongs to the CAT810 series of microprocessor power supply supervisors from onsemi. The series provides various threshold voltages and packaging options to accommodate different system requirements. The ZTB suffix typically indicates a specific threshold voltage variant within the family, distinguished by its 4 V trip point compared to other series members.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative voltage supervisors from onsemi or other manufacturers with matching 4 V thresholds, SOT-23-3 packages, and active high outputs.