CAT810TTBI-GT3

Supervisors Overview

The CAT810TTBI-GT3 is a microprocessor power supply supervisor manufactured by onsemi. It monitors a single voltage input with a reset threshold range of 3V to 3.15V and supports maximum monitoring voltages up to 5V. The device operates within a supply voltage range of 1.2V to 5.5V and features an active high, push-pull output. It is housed in a compact 3-pin SOT-23 package with dimensions of 3.04 x 1.4 x 1.12mm. The component functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Generates a reset signal when the monitored power supply voltage falls below a preset threshold level
• Asserts the reset output for a minimum duration after the supply voltage rises above the threshold
• Ignores fast transients on the power supply to prevent false triggering
• Provides a push-pull active high reset output configuration

Supervisors Applications

• Monitoring +5.0 V digital system power supplies
• Monitoring +3.3 V digital system power supplies
• Monitoring +3.0 V digital system power supplies
• Monitoring +2.5 V digital system power supplies

Supervisors Procurement Notes

Verify the specific reset threshold voltage required for the application, as the TTBI suffix indicates a value between 3V and 3.15V. Confirm that the active high push-pull output aligns with the target microprocessor's reset input requirements. Ensure the operating voltage range covers the system's minimum and maximum supply levels. Check for any obsolete status or limited availability through official distributors.

Supervisors Selection Notes

Select this component when an active high reset signal is required for low-voltage digital systems. The push-pull output eliminates the need for external pull-up resistors compared to open-drain alternatives. The wide operating voltage range allows compatibility with various logic families. Verify that the thermal performance meets the environmental conditions of the final assembly.

Supervisors Part Context

This part belongs to the CAT803/CAT809/CAT810 family of supervisory circuits designed for digital systems. These devices serve as direct replacements for legacy parts like the MAX803, MAX809, and MAX810. The family utilizes floating gate technology to provide precise monitoring thresholds. The CAT810 variant specifically distinguishes itself with an active high output, unlike the active low outputs of the CAT803 and CAT809.

Supervisors Replacement Considerations

• MAX810