KA75270MTF

Supervisors Overview

The KA75270MTF is a single-channel voltage supervisor integrated circuit manufactured by onsemi, designed for monitoring power supply integrity in electronic systems. It operates within a supply voltage range of 300 mV to 15 V and features a fixed threshold voltage of 2.7 V. The device provides an active-low reset signal via an open-drain or open-collector output, ensuring compatibility with various logic families. Packaged in a surface-mount SOT-89-3 (TO-243AA) case, it supports operation across a temperature range of -25°C to +85°C. With a typical operating current of 500 µA and a maximum power dissipation of 500 mW, this component serves as a simple reset or power-on reset solution without manual reset or watchdog timer capabilities.

Supervisors Feature Summary

• Provides a dedicated reset signal triggered when the monitored voltage falls below the specified threshold level
• Features an open-drain or open-collector output configuration for flexible interfacing with different logic standards
• Operates effectively over a wide input voltage range starting from low millivolt levels up to 15 V

Supervisors Applications

• Power-on reset generation for microprocessors and microcontrollers
• Voltage supervision for battery-powered portable devices
• System reset management in industrial control equipment

Supervisors Procurement Notes

Verify part status carefully as the KA75270MTF is listed as obsolete by the manufacturer. Confirm availability through secondary distributors if immediate procurement is required. Ensure that the SOT-89-3 package dimensions match your PCB footprint design. Check for RoHS compliance documentation specific to the production batch before integration into final assemblies.

Supervisors Selection Notes

Select this component when a fixed 2.7 V threshold is appropriate for the target application's voltage rail. Consider the open-drain output requirement for pull-up resistor implementation. Evaluate the 500 µA quiescent current against system power budgets. The SOT-89-3 package offers a compact surface-mount solution suitable for space-constrained designs requiring basic voltage supervision without complex programmability.

Supervisors Part Context

This supervisor belongs to the KA75270 family of voltage detectors. It functions as a standalone IC within the PMIC category, specifically addressing simple reset needs. Unlike more complex supervisors, it lacks programmable thresholds or watchdog timers, focusing instead on reliable detection of under-voltage conditions at a fixed level. It complements other onsemi power management solutions by providing essential system stability monitoring.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the obsolete status of this component.