MAX6366LKA46+

Overview

The MAX6366LKA46+ is a uPower supervisory circuit from the MAX6365–MAX6368 series, designed for power-supply monitoring and battery-backup control. It features a fixed 4.63V threshold voltage with an active low push-pull output. The device includes a minimum reset timeout of 150ms and operates within a supply voltage range up to 5.5V. It supports chip-enable gating and offers low quiescent current consumption of 15µA. The component is housed in an SOT-23-8 package and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Provides robust power-system supervision for safety-critical applications
• Integrates battery-backup control and memory write protection functions
• Features factory-set reset threshold for simplified design implementation

Applications

• Safety-critical automotive applications
• Battery backup systems
• Memory write protection circuits

Procurement Notes

Verify the specific suffix 'LKA46' to confirm the 4.63V threshold and push-pull output configuration. Confirm RoHS compliance status as indicated in official documentation. Check availability status as this part may be subject to limited supply or obsolescence notices from Analog Devices. Ensure the SOT-23-8 package matches your PCB footprint requirements before procurement.

Selection Notes

Select this component when a fixed 4.63V threshold is required for system supervision. Choose the push-pull output variant if active drive capability is needed rather than open-drain. Consider the 15µA quiescent current for low-power designs. Verify that the 150ms minimum reset timeout aligns with system startup timing requirements. Ensure the operating temperature range meets environmental conditions.

Part Context

This device belongs to the MAX6365–MAX6368 family of supervisory circuits manufactured by Maxim Integrated, now part of Analog Devices. These parts are designed to simplify power management by providing reliable voltage monitoring. The MAX6366 variant specifically integrates watchdog timer functionality alongside standard supervision features, distinguishing it from simpler supervisor models in the same series.

Replacement Considerations

Cross-reference with MAX6366LKA46+T for tape-and-reel packaging options. Verify compatibility with MAX6366HKA46 variants regarding pinout and electrical characteristics. Ensure substitute parts maintain the 4.63V threshold and active low output polarity.