CAT810TTBI-T

Supervisors Overview

The CAT810TTBI-T is a single-channel voltage supervisory circuit manufactured by onsemi. 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 monitors input voltage against a threshold of approximately 4.06 V, with specific under-voltage and over-voltage detection points at 3.93 V and 4.06 V respectively. It includes a fixed reset delay time of 240 ms and consumes a typical operating current of 8 µA. The component is housed in an SOT-23-3 package and functions without manual reset or watchdog timer capabilities.

Supervisors Feature Summary

• Monitors power supply voltage levels to ensure system stability
• Generates active high reset signals via push-pull output structure
• Provides fixed delay timing for reliable reset assertion

Supervisors Applications

• Microprocessor power supply supervision
• Digital system voltage monitoring
• Battery-powered device power management

Supervisors Procurement Notes

Verify the exact manufacturer source and authenticity when sourcing this component, as distribution channels may vary. Confirm that the part matches the specified SOT-23-3 package and electrical parameters. Check for any obsolescence notices or lifecycle status updates from onsemi prior to finalizing procurement decisions.

Supervisors Selection Notes

Select this component for applications requiring simple, low-power voltage monitoring with an active high output. Ensure the required threshold voltage aligns with the 4.06 V specification. Consider the 240 ms reset delay and 8 µA quiescent current when designing power-sensitive circuits.

Supervisors Part Context

This part belongs to the CAT810 series of microprocessor power supply supervisors. These devices are designed to replace older supervisory ICs in industrial temperature range applications. The series offers various threshold voltages and packages to suit different digital system requirements.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: None identified.