MAX6337US22D3

Overview

The MAX6337US22D3 is a microprocessor supervisory circuit designed for 1.8V to 3.3V systems. It monitors the VCC supply voltage and asserts an active-low reset signal when the voltage drops below a preset threshold or upon manual reset assertion. The device features an open-drain output, a debounced manual-reset input, and a minimum reset timeout of 150ms. It operates within a temperature range of -40°C to +125°C and consumes only 3.3µA of supply current.

Feature Summary

• Monitors power supply voltage and asserts reset on undervoltage or manual trigger
• Features a debounced manual-reset input for reliable user intervention
• Provides an active-low open-drain reset output compatible with various logic families

Applications

• Microprocessor (µP) system supervision
• Digital system power monitoring
• Embedded controller reset management

Procurement Notes

Verify component authenticity through authorized distributors due to limited availability. Confirm RoHS compliance status and check for obsolescence notices from Analog Devices. Ensure the SOT-143-4 package matches design requirements. Validate that the specific threshold voltage meets system specifications before procurement.

Selection Notes

Select this part for applications requiring low-power monitoring in space-constrained designs. The open-drain output allows flexible interfacing with different logic levels. Consider the 150ms reset delay for system startup timing. Verify compatibility with the target microprocessor's reset requirements and ensure the operating temperature range suits the environment.

Part Context

Part of the MAX6335/MAX6336/MAX6337 family of ultra-low-voltage reset circuits. These devices eliminate external components by integrating precision comparators and timers. The MAX6337 variant specifically offers an open-drain output, distinguishing it from the push-pull outputs of the MAX6335 and MAX6336 models.

Replacement Considerations

• MAX6337US22D3+T

FAQ

What is the reset output type of the MAX6337US22D3?

The MAX6337US22D3 features an active-low open-drain reset output.

Does the MAX6337US22D3 include a manual reset function?

Yes, it includes a debounced manual-reset input for asserting the reset signal.