CAT809LTBI-GT3

Supervisors Overview

The CAT809LTBI-GT3 is a supervisor circuit manufactured by onsemi, designed to monitor voltage levels and reset microprocessors or digital logic systems. It operates within a supply voltage range of 1.2V to 5.5V, ensuring compatibility with various low-voltage applications. The device features a fixed output delay time of 200ms, providing stable power-up sequencing. It includes an open-drain active-low reset output compatible with CMOS and TTL logic families. The component is housed in a compact SOT-23-5 package, facilitating space-constrained designs while maintaining reliable performance under varying thermal conditions.

Supervisors Feature Summary

• Monitors supply voltage to ensure system stability during power fluctuations
• Provides a fixed 200ms reset delay for controlled power-up sequences
• Features an open-drain active-low reset output for broad logic compatibility

Supervisors Applications

• Microprocessor reset circuits in embedded systems
• Battery-powered devices requiring low-voltage monitoring
• Industrial control systems needing reliable power supervision

Supervisors Procurement Notes

Verify the exact suffix GT3 confirms tape-and-reel packaging when ordering. Confirm the LTBI variant matches the required temperature grade and pinout configuration for your specific PCB layout. Cross-reference the datasheet revision date to ensure alignment with current manufacturing specifications before finalizing procurement.

Supervisors Selection Notes

Select this component when a fixed 200ms delay is sufficient for your application's power-up requirements. Ensure the input voltage range covers your system's minimum operating voltage. Consider the SOT-23-5 package size constraints and verify that the open-drain output interface aligns with your downstream logic level requirements without additional pull-up components.

Supervisors Part Context

This part belongs to onsemi's CAT809 series of voltage supervisors. The series offers various threshold voltages and delay options to suit different system needs. The CAT809LTBI-GT3 specifically targets applications requiring a standard reset delay and wide input voltage coverage, fitting into the broader portfolio of power management solutions designed for reliability in consumer and industrial electronics.

Supervisors Replacement Considerations

Check for direct cross-reference part numbers from other manufacturers offering identical 200ms delay and SOT-23-5 footprint. Verify that any substitute maintains the same active-low open-drain output characteristic and compatible input voltage range to ensure seamless integration without circuit redesign.