MAX6340UK16+T

Overview

The MAX6340UK16+T is a low-power microprocessor supervisor circuit from the MAX6340 family, manufactured by Analog Devices Inc./Maxim Integrated. It monitors system voltages ranging from 1.6V to 5V and asserts a reset signal when the supply voltage falls below its specific threshold. This variant features an active-low, open-drain reset output with a fixed timeout delay of 280ms. It operates within a temperature range of -40°C to +125°C, consumes a typical quiescent current of 1.6µA, and supports power supply voltages up to 5.5V. The device is housed in a compact 5-pin SOT-23 package.

Feature Summary

• Monitors system voltages from 1.6V to 5V
• Capacitor-adjustable reset timeout period for flexibility
• Low quiescent current consumption
• Active-low, open-drain reset output option

Applications

• Microprocessor system supervision
• Battery-powered portable devices
• Consumer electronics voltage monitoring
• Industrial control system reset circuits

Procurement Notes

Verify the exact suffix 'T' indicates tape-and-reel packaging configuration. Confirm the '16' suffix corresponds to the 1.6V reset threshold and 280ms timeout as per the official datasheet. Ensure compatibility with the 5-pin SOT-23 footprint during procurement planning.

Selection Notes

Select this component for applications requiring precise voltage monitoring with minimal power consumption. The open-drain output allows for flexible interfacing with various logic levels. Consider the fixed timeout characteristics against application requirements for reset stability during power-up sequences.

Part Context

Part of the MAX6340/MAX6421–MAX6426 family of low-power supervisors. Shares common features like capacitor-adjustable timeout and low quiescent current across the series. Differentiated by specific reset thresholds and output configurations defined by the part number suffixes.

Replacement Considerations

Pin-compatible with LP3470. Cross-reference with NCP300–NCP303, MC33464/MC33465 families for functional equivalents. Verify threshold voltage and output type compatibility before substitution.

FAQ

What is the reset threshold voltage for the MAX6340UK16+T?

The reset threshold voltage is 1.6V, as indicated by the '16' suffix in the part number.

Does the MAX6340UK16+T have a manual reset input?

No, the MAX6340UK16+T does not feature a manual reset input; it relies on automatic voltage monitoring.

What is the typical quiescent current of this device?

The typical quiescent current is 1.6µA, ensuring low power consumption in battery-operated applications.