CAT810ZSDI-GT3

Supervisors Overview

The CAT810ZSDI-GT3 is a voltage supervisory circuit from onsemi, designed to monitor power supplies in digital systems. It features a push-pull active high reset output and operates within a supply voltage range of 1.2 V to 5.5 V. The device monitors a single input with a fixed threshold voltage of 2.32 V and an overvoltage threshold of 2.66 V. It provides a reset delay time of 240 ms and consumes only 8 uA of operating current. The component is housed in a compact SC-70-3 package and supports an industrial operating temperature range from -40 °C to +85 °C.

Supervisors Feature Summary

• Generates a reset signal when the monitored power supply voltage falls below the preset threshold level.
• Features a push-pull output configuration that asserts high while the supply voltage is below the threshold.
• Ignores fast transients on the power supply to prevent false triggering.
• Utilizes floating gate technology to provide precise monitoring without requiring external components.

Supervisors Applications

• Monitoring +2.5 V power supplies in digital systems
• Ensuring system stability in industrial temperature environments
• Providing reset signals for microprocessor power supplies

Supervisors Procurement Notes

Verify the specific suffix GT3 indicates RoHS compliance and lead-free status as per manufacturer standards. Confirm the SC-70-3 package dimensions match your PCB footprint requirements. Ensure the 2.32 V threshold aligns with your target rail voltage. Check for any obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a push-pull active high reset output is required for low-voltage monitoring. It is suitable for applications needing precise threshold detection at 2.32 V. Consider the low quiescent current for battery-powered designs. Verify that the SC-70-3 package fits your space constraints compared to SOT-23 alternatives.

Supervisors Part Context

This part belongs to the CAT810 series of 3-pin microprocessor power supply supervisors. It serves as a direct replacement for legacy MAX810 devices in industrial applications. The series offers various threshold options to support standard voltage rails like 2.5 V, 3.0 V, 3.3 V, and 5.0 V. The CAT810 variant specifically provides an active high output, distinguishing it from the active low CAT809.

Supervisors Replacement Considerations

The CAT810ZSDI-GT3 is a direct functional replacement for the Maxim Integrated MAX810ZSDI-T1 in industrial temperature range applications. Verify pin compatibility between SC-70-3 and equivalent packages from other manufacturers if cross-sourcing.