CAT810LSDI-GT3

Supervisors Overview

The CAT810LSDI-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for monitoring power supplies in digital systems. It features an active high push-pull output and operates within a supply voltage range of 1.2 V to 5.5 V. The device provides a reset signal when the monitored voltage falls below a preset threshold or remains above it for insufficient time. Key electrical parameters include a threshold voltage of 4.63 V, an overvoltage threshold of 4.69 V, and a minimum undervoltage threshold of 4.56 V. The reset delay time is specified at 140 ms. The component draws a typical operating current of 8 uA and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Generates a reset signal asserted while the power supply voltage is below a preset threshold level and for a defined duration after rising above that level.
• Features a push-pull active high RESET output configuration without requiring external pull-up resistors.
• Utilizes underlying floating gate technology to provide precise monitoring thresholds for standard system voltages.
• Ignores fast transients on the power supply and guarantees correct output state at low VCC levels.

Supervisors Applications

• Monitoring power supplies in digital systems requiring industrial temperature operation
• Direct replacement applications for legacy MAX810 supervisory circuits
• Systems operating with +5.0 V, +3.3 V, +3.0 V, or +2.5 V power rails

Supervisors Procurement Notes

Verify the specific suffix 'LSDI' against official onsemi documentation to confirm the exact threshold voltage and package type (SC-70). Confirm end-of-life status and availability through authorized distributors, as this component may be obsolete. Ensure the active high push-pull output aligns with the target microprocessor reset requirements.

Supervisors Selection Notes

Select this component when an active high push-pull output is required for direct interfacing with logic inputs. The 4.63 V threshold suits +5.0 V systems with specific tolerance requirements. Consider the SC-70 package for space-constrained designs. Verify compatibility with the target system's voltage range and temperature specifications before integration.

Supervisors Part Context

The CAT810 series includes CAT803, CAT809, and CAT810 variants, offering different output configurations. The CAT810 specifically provides an active high push-pull output, distinguishing it from the open-drain active low CAT803 and the push-pull active low CAT809. All three share similar monitoring capabilities and are designed as replacements for Maxim Integrated counterparts.

Supervisors Replacement Considerations

The CAT810LSDI-GT3 serves as a direct replacement for the MAX810 in industrial temperature range applications. When substituting, ensure the target system supports active high reset signals and push-pull outputs. Verify that the threshold voltage matches the design requirements for the +5.0 V rail.