CAT140021TWI-GT3

Supervisors Overview

The CAT140021TWI-GT3 is a voltage supervisory circuit manufactured by onsemi, housed in an 8-SOIC package. It monitors a single input with threshold voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The device operates within a supply voltage range of 2.5 V to 5.5 V, featuring an overvoltage threshold of 3.11 V and an undervoltage threshold of 3.04 V for specific configurations. It draws 1 mA of operating current and functions between -40°C and +85°C. This component integrates a 2k I2C EEPROM for data storage alongside its supervision capabilities.

Supervisors Feature Summary

• Integrates voltage supervision with embedded non-volatile memory
• Supports multiple fixed threshold voltage options
• Utilizes I2C interface for communication

Supervisors Applications

• Portable electronic devices requiring power monitoring
• Battery-operated systems needing voltage supervision
• Embedded systems with data logging requirements

Supervisors Procurement Notes

Verify the exact threshold voltage variant required, as the part number suffix may not explicitly denote the specific threshold level in all distributor listings. Confirm the I2C address compatibility with the target system controller. Ensure the SOIC-8 package dimensions match the PCB footprint design. Check for RoHS compliance status if environmental regulations apply to the end product.

Supervisors Selection Notes

Select this component when both voltage supervision and small-scale data storage are needed in a single IC. Consider the 1 mA quiescent current impact on battery life. Verify that the I2C bus speed requirements are met by the supervisor's interface. Ensure the operating temperature range covers the intended application environment.

Supervisors Part Context

This part belongs to onsemi's line of supervisory circuits designed for power management applications. It combines traditional voltage monitoring functions with integrated EEPROM, reducing component count in designs. The 8-SOIC package offers a compact solution for space-constrained electronics. It serves as a PMIC subcategory component for system protection.

Supervisors FAQ

Does the CAT140021TWI-GT3 include a manual reset function?

No, the datasheet specifications indicate that this device does not feature a manual reset capability.

Is there a watchdog timer included in this supervisor?

No, the component specifications confirm that no watchdog timer is present in this circuit.