CAT809LSDI-GT3

Supervisors Overview

The CAT809LSDI-GT3 is a microprocessor power supply supervisor manufactured by onsemi, designed to monitor digital system voltages. It features a push-pull active low reset output and operates within an industrial temperature range of -40°C to +85°C. The device supports a supply voltage range from 1.2 V to 5.5 V with a typical operating current of 6 µA. It provides precise monitoring for standard systems including +5.0 V, +3.3 V, +3.0 V, and +2.5 V. The component is housed in a compact SC-70-3 package and offers reset validity down to 1.0 V.

Supervisors Feature Summary

• Provides precision monitoring for standard voltage rails including +5.0 V, +3.3 V, +3.0 V, and +2.5 V systems
• Features a push-pull active low reset output configuration for robust signal driving
• Ensures reset validity down to a supply voltage of 1.0 V
• Includes power supply transient immunity to ignore fast voltage spikes

Supervisors Applications

• Computers and servers
• Wireless communications equipment
• Embedded control systems
• Intelligent instruments and power meters

Supervisors Procurement Notes

Verify the specific threshold voltage variant required, as the CAT809 series includes multiple options for different system voltages. Confirm the SC-70-3 package availability matches design constraints. Check for RoHS compliance status if environmental regulations apply. Ensure the industrial temperature range meets operational requirements. Validate that the push-pull output type aligns with the target circuit interface.

Supervisors Selection Notes

Select this component when a direct replacement for MAX809 is needed in industrial environments. Choose the CAT809LSDI-GT3 specifically for its defined threshold characteristics suitable for the target voltage rail. Consider the low operating current for battery-powered applications. Ensure the SC-70-3 footprint fits the PCB layout. Verify compatibility with the system's reset logic requirements.

Supervisors Part Context

This part belongs to the CAT809 family of supervisory circuits from onsemi. These devices are engineered as direct replacements for Maxim Integrated MAX809 components. The family offers various output configurations and threshold options to support diverse digital system monitoring needs across consumer and industrial electronics.

Supervisors Replacement Considerations

The CAT809LSDI-GT3 serves as a direct functional replacement for the Maxim Integrated MAX809 in industrial temperature range applications. Designers should verify pinout compatibility and ensure the specific threshold voltage matches the original design specifications before substitution.