KA75250ZBU

Supervisors Overview

The KA75250ZBU is a voltage detector manufactured by Fairchild Semiconductor, designed to monitor supply voltages and prevent system errors during power-on or instantaneous power-off events. It provides a reset function for low-voltage microprocessors and checks for low battery conditions. The device operates within an input voltage range of 7 V to 40 V, with a nominal input voltage of 15 V. It features a detecting threshold specifically set at 2.50 V to trigger the reset signal when the supply voltage falls below this level.

Supervisors Feature Summary

• Detects against error operations occurring at power-on or power-off
• Provides resetting function for low-voltage microprocessors
• Checks for low battery conditions

Supervisors Applications

• Microprocessor reset circuits
• Low battery detection systems
• Power supply monitoring

Supervisors Procurement Notes

Verify the specific suffix 'BU' against official Fairchild documentation to confirm package type and tape-and-reel specifications. Ensure the component matches the 2.50 V threshold requirement for your application. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity.

Supervisors Selection Notes

Select this component when a precise 2.50 V detection threshold is required for microprocessor reset or battery monitoring. Consider the 7 V to 40 V operating range and the need for low-voltage reset functionality. Evaluate the package constraints and ensure compatibility with the target PCB layout and thermal requirements.

Supervisors Part Context

The KA75250ZBU belongs to the KA75XXX series of voltage detectors from Fairchild Semiconductor. This family includes various models differentiated by their detection thresholds, such as the KA75450Z which detects at 4.50 V. These devices are engineered to enhance system reliability by preventing erratic behavior caused by unstable power supplies.

Supervisors Replacement Considerations

Compatible substitutes include other voltage detectors with a 2.50 V threshold, such as the NJM2405 or TC54 variants. Verify pinout compatibility and electrical characteristics before substitution.