MAX6403BS46

Supervisors Overview

The MAX6403BS46 is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 2.7V to 5.5V and features a fixed reset threshold voltage of 4.51V. The device provides a push-pull active-low reset output with an inherent delay of 200ms. It is housed in a compact 4-bump, 2x2mm chip-scale package (UCSP-4) designed for surface-mount applications. The component supports single-supply operation and includes a manual reset input pin.

Supervisors Feature Summary

• Provides precise monitoring of system power supply voltages using an internal bandgap reference.
• Features a manual reset input allowing external control over the reset signal state.
• Delivers a guaranteed 200ms reset pulse duration upon power-up or fault detection.

Supervisors Applications

• Monitoring regulated system voltages in embedded processors
• Battery-powered portable electronic devices requiring low quiescent current
• Industrial control systems needing reliable power supervision

Supervisors Procurement Notes

Verify the specific suffix 'BS46' against official datasheets to confirm the exact threshold voltage and package type. Ensure compatibility with the target PCB footprint for the UCSP-4 package. Confirm RoHS compliance status if required by project specifications. Cross-reference the manufacturer's latest documentation for any potential design changes or obsolescence notices prior to final procurement.

Supervisors Selection Notes

Select this component when a fixed 4.51V threshold is required for voltage supervision. Consider the UCSP-4 package size constraints for high-density layouts. Evaluate the 200ms default delay against system startup timing requirements. Verify that the single-supply voltage range aligns with the available power rails in the application design.

Supervisors Part Context

This part belongs to the MAX6400-MAX6405 family of ultra-low power microprocessor supervisory circuits. These devices are designed to monitor battery, power-supply, and regulated system voltages. The family offers various threshold options and packaging styles to suit different space and performance requirements in portable and industrial electronics.

Supervisors Replacement Considerations

MAX6403CS46+T

Supervisors FAQ

What is the reset output configuration?

The MAX6403BS46 provides a push-pull active-low reset output.

Does the device include a watchdog timer?

No, the MAX6403BS46 is a basic supervisor without an integrated watchdog timer.