CAT1640YI-25-GT3

Supervisors Overview

The CAT1640YI-25-GT3 is a single-channel voltage supervisor IC manufactured by onsemi. It operates within a supply voltage range of 2.55V to 5.5V and features an active-low open-drain output. The device provides a reset pulse with a minimum duration of 130ms upon power-up or fault detection. It is housed in an 8-pin TSSOP package and supports surface-mount installation. The component functions reliably across an industrial temperature range from -40°C to +85°C, ensuring stable supervision for embedded systems requiring precise voltage monitoring.

Supervisors Feature Summary

• Provides active-low reset signal generation for monitored power rails
• Features open-drain output configuration for flexible interfacing
• Generates a guaranteed minimum 130ms reset pulse duration

Supervisors Applications

• Microcontroller system power supervision
• Embedded controller voltage monitoring
• Industrial control board reset management

Supervisors Procurement Notes

Verify the specific suffix '25' indicates the correct threshold voltage for your application requirements. Confirm the TSSOP-8 package dimensions match your PCB footprint design. Ensure the operating voltage range covers your system's nominal supply levels. Check for RoHS compliance documentation if required by your manufacturing standards. Validate the active-low output polarity against your target controller's input expectations.

Supervisors Selection Notes

Select this component when a single-channel voltage supervision function is required with an active-low output. The 2.55V threshold makes it suitable for 3.3V and 5V logic systems. Consider the open-drain output capability if wired-OR configurations are needed. The wide operating temperature range supports industrial environments. Verify that the 130ms minimum reset pulse meets the initialization timing requirements of the connected processor.

Supervisors Part Context

This part belongs to onsemi's CAT1640 series of voltage supervisors. These devices are designed to monitor a single power supply line and generate a reset signal when the voltage drops below a specified threshold. The series offers various threshold options and output configurations to suit different system architectures. The CAT1640 family is commonly used in consumer electronics and industrial equipment for reliable power management.

Supervisors Replacement Considerations

CAT1640YI-30-GT3: Offers a different threshold voltage while maintaining similar package and functional characteristics.