KA75420MTF

Supervisors Overview

The KA75420MTF is a voltage supervisory circuit manufactured by onsemi, designed for monitoring single-channel power supply voltages. It operates within a supply voltage range of 300 mV to 15 V and features adjustable threshold detection between 2.5 V and 4.5 V. Specific thresholds include an undervoltage limit of 2.55 V and an overvoltage limit of 2.85 V. The device draws a maximum operating current of 500 uA and dissipates up to 500 mW of power. It provides simple reset and power-on reset functions with a low-active output via open-drain or open-collector configuration. The component is housed in a surface-mount SOT-89-3 package and supports operation from -25°C to +85°C.

Supervisors Feature Summary

• Provides simple reset and power-on reset functionality for system protection
• Features open-drain or open-collector output for flexible logic interfacing
• Operates with low quiescent current consumption suitable for battery applications

Supervisors Applications

• Portable electronic devices requiring voltage supervision
• Battery-powered systems needing power-on reset generation
• Microcontroller-based circuits requiring reliable startup sequencing

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to obsolete status. Confirm package integrity and pinout compatibility before integration. Check for RoHS compliance documentation. Ensure storage conditions meet manufacturer specifications to prevent degradation. Validate electrical parameters against original datasheet requirements for critical applications.

Supervisors Selection Notes

Select this component when a single-channel supervisor with adjustable thresholds is required. Consider the SOT-89-3 package for space-constrained designs. Evaluate the low operating current for power-sensitive applications. Verify that the open-drain output matches the target system's logic levels. Compare performance against newer alternatives if long-term availability is a priority.

Supervisors Part Context

This part belongs to onsemi's line of supervisory circuits, specifically designed for voltage monitoring tasks. It falls under the PMIC category, focusing on power management integrity. The KA75420 series offers various threshold options to suit different voltage rails. The MTF suffix indicates the specific SOT-89-3 surface-mount packaging variant.

Supervisors Replacement Considerations

The KA75420MTF is listed as obsolete. Customers should contact sales teams for equivalent or alternative models. Verify functional compatibility and pinout alignment when selecting substitutes. Review updated datasheets for any changes in electrical characteristics or packaging.