LM3722EM5-3.08/NOPB

Supervisors Overview

The LM3722EM5-3.08/NOPB is a single-channel voltage supervisor manufactured by Texas Instruments, designed for monitoring power supply integrity in electronic systems. It operates within an extended temperature range of -40°C to +125°C and utilizes a compact SOT-23-5 surface-mount package. The device features a fixed output threshold voltage of 3.08V, ensuring precise detection of under-voltage conditions. It provides a minimum reset pulse duration of 100ms to guarantee adequate time for microprocessor recovery during power-up or fault events. The component supports both active-low push-pull and open-drain output configurations, offering flexibility for interfacing with various logic families.

Supervisors Feature Summary

• Provides reliable system reset generation through a dedicated supervisory channel with a fixed 3.08V threshold.
• Ensures stable operation across industrial temperature ranges from -40°C to +125°C.
• Generates a minimum 100ms reset pulse to prevent premature processor activation during power transitions.

Supervisors Applications

• Microprocessor reset circuits
• Power supply monitoring
• Embedded system supervision

Supervisors Procurement Notes

Verify the specific suffix and package variant against the official datasheet to ensure compatibility with the target design requirements. Confirm that the operating voltage and threshold specifications align with the monitored rail characteristics. Check for any recent product change notifications regarding manufacturing sites or material composition updates before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 3.08V threshold is required for single-rail monitoring applications. Consider the SOT-23-5 package size constraints and the need for a 100ms minimum reset delay. Evaluate whether the available output drive configuration meets the interface requirements of the downstream logic circuitry.

Supervisors Part Context

This part belongs to the LM372x family of voltage supervisors, which are designed for simple reset and power-fail applications. The LM3722 variant specifically offers a push-pull output option alongside the standard open-drain configuration found in other family members. It serves as a fundamental building block for ensuring system reliability in portable and industrial electronics.

Supervisors Replacement Considerations

Direct substitutes include the LM3722IM5-3.08/NOPB and LM3722SM5-3.08/NOPB, which share identical electrical specifications and pinouts but differ in thermal performance ratings and package dimensions. Verify thermal requirements and board space constraints when considering these alternatives.