MAX6365LKA44-T

Overview

The MAX6365LKA44-T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of up to 5.5V and features a fixed reset threshold voltage of 4.4V, as indicated by the '44' suffix in its part number. The device monitors a single input channel and provides an active-low, push-pull output. Key functional attributes include battery backup switching, chip-enable gating, and manual reset capability. It exhibits a typical reset delay time of 280ms and consumes only 15µA of operating current. The component is housed in an SOT-23-8 surface-mount package and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates battery backup switching to maintain system state during power transitions
• Includes chip-enable gating functionality for controlled supervision activation
• Provides manual reset input for user-initiated system recovery
• Delivers active-low push-pull reset output with defined delay characteristics

Applications

• Microprocessor power supply monitoring in embedded systems
• Battery-backed memory or register protection circuits
• Consumer electronics requiring low-power voltage supervision
• Industrial control units needing manual reset capabilities

Procurement Notes

Verify the specific reset threshold voltage corresponding to the '44' suffix against the official datasheet before integration. Confirm that the SOT-23-8 package dimensions match your PCB footprint requirements. Ensure the 15µA quiescent current meets your system's power budget constraints. Check for RoHS compliance status if required by your manufacturing standards. Validate that the 5.5V maximum operating voltage aligns with your supply rail specifications.

Selection Notes

Select this component when a fixed 4.4V reset threshold is required for single-channel voltage monitoring. Consider it for designs prioritizing low standby current consumption below 20µA. Choose this IC if battery backup switching and chip-enable gating are necessary features. Evaluate the SOT-23-8 package size against available board space. Ensure the -40°C to +85°C operating temperature range suits your environmental conditions.

Part Context

The MAX6365L series comprises low-power supervisory circuits designed for microprocessor applications. The LKA variant specifically denotes the SOT-23-8 package configuration. This family integrates essential power management functions into a compact form factor. The MAX6365LKA44-T represents a specific threshold version within this lineup. It shares common architectural features with other suffix variants while differing in reset voltage settings.

Replacement Considerations

Cross-reference with MAX6365LKA44+T for lead-free compliant alternatives. Verify compatibility with MAX6365LKA44-T from different manufacturers if sourcing flexibility is needed. Ensure replacement parts maintain the same 4.4V threshold and SOT-23-8 package. Confirm identical pinout configurations to avoid PCB redesign.