CAT810LSDI-T3

Supervisors Overview

The CAT810LSDI-T3 is a voltage supervisory circuit manufactured by onsemi, designed for monitoring single-channel power supply rails. It operates within a supply voltage range of 1.2 V to 5.5 V and features a fixed under-voltage threshold of 4.63 V with an over-voltage threshold of 4.70 V. The device utilizes a push-pull active-high output configuration and includes a reset delay time of 240 ms. It consumes a typical operating current of 8 µA and lacks manual reset, watchdog timer, or battery backup switching functions. Packaged in a SC-70-3 surface-mount case, it supports an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides precise voltage supervision with fixed under-voltage and over-voltage thresholds for reliable system monitoring.
• Features a push-pull active-high output driver capable of directly interfacing with processor reset pins.
• Incorporates a fixed 240 ms reset delay to ensure stable power-up conditions before asserting the reset signal.

Supervisors Applications

• Monitoring microprocessor and microcontroller power supplies
• Supervising battery-powered portable electronic devices
• Ensuring system integrity in industrial control equipment

Supervisors Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm the specific suffix matches the required threshold voltage and package variant. Request official datasheets and RoHS compliance documentation prior to ordering. Validate that the supplier provides traceable manufacturing records to ensure quality assurance and long-term availability for production integration.

Supervisors Selection Notes

Select this component when a fixed 4.63 V threshold is required for single-rail supervision. Consider the low 8 µA quiescent current for energy-efficient designs. Ensure the SC-70-3 package fits the PCB layout constraints. Verify that the 240 ms delay aligns with the target processor's power-up timing requirements without external components.

Supervisors Part Context

This part belongs to the CAT810 series of voltage supervisors from onsemi, categorized under PMIC solutions. It complements other variants in the family that offer different threshold voltages and packaging options. The series targets applications requiring simple, cost-effective power management without complex configuration interfaces or additional peripheral components.

Supervisors Replacement Considerations

Publicly confirmed substitutes include MIC810LYC3-TR from Microchip Technology. Verify pin compatibility and electrical parameter alignment before substitution. Check for any differences in output drive strength or delay times that may affect system timing.