M40Z300WMH6F

Supervisors Overview

The M40Z300WMH6F is a voltage supervisory circuit manufactured by STMicroelectronics, designed for monitoring single-channel power supply voltages. It operates within a threshold voltage range of 2.6V and supports a supply voltage span from 4.5V to 5.5V. The device features an open-drain or open-collector output with a low-active reset signal. It is housed in a 28-SOH package with snaphat sockets, suitable for surface mount installation. The component functions effectively across an operating temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides simple reset and power-on reset functionality for monitored voltage channels
• Features open-drain or open-collector output configuration for flexible interfacing
• Includes snaphat socket design on the 28-SOIC package for secure mounting

Supervisors Applications

• NVRAM supervisor circuits for battery backup systems
• Voltage monitoring in industrial control equipment
• Power management protection in embedded computing devices

Supervisors Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors due to discontinued status. Confirm package integrity and pin alignment for the 28-SOH snaphat variant. Check RoHS3 compliance documentation for environmental regulations. Validate lot codes against current inventory records as availability may be limited. Ensure proper handling procedures are followed during procurement and storage.

Supervisors Selection Notes

Select this component when a dedicated voltage supervisor with open-drain output is required for single-channel monitoring. The 2.6V threshold suits applications needing precise low-voltage detection. Consider the 28-SOH package constraints for PCB layout. Evaluate thermal performance within the specified -40°C to +85°C range. Compare against active alternatives if long-term supply stability is critical for the design lifecycle.

Supervisors Part Context

This part belongs to the M40Z300 series of supervisory circuits from STMicroelectronics. It complements other voltage monitoring solutions in the PMIC category. The series targets applications requiring reliable power failure detection without complex watchdog features. It fits within ST's broader portfolio of power management integrated circuits designed for industrial and consumer electronics.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before considering alternative components. Consult STMicroelectronics technical support for current active replacements within the M40Z family.