LM3712XQTP-308/NOPB

Supervisors Overview

The LM3712XQTP-308/NOPB is a microprocessor supervisory circuit manufactured by National Semiconductor. It features a push-pull, totem pole output with an active low reset signal. The device monitors a single voltage channel with a threshold of 3.08V. It includes a minimum reset timeout of 140ms and operates within a junction temperature range of -40°C to 85°C. The component is housed in a 9-µSMD package measuring 1.34x1.36mm.

Supervisors Feature Summary

• Push-pull totem pole output configuration for robust drive capability
• Active low reset signal generation for microprocessor supervision
• Integrated watchdog timer functionality for system reliability

Supervisors Applications

• Microprocessor power supply monitoring
• Embedded system reset control
• Industrial control unit supervision

Supervisors Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments on the datasheet. Confirm the suffix NOPB indicates lead-free and RoHS compliance. Ensure the package type matches the 9-µSMD (1.34x1.36) specification. Check that the threshold voltage is exactly 3.08V for the specific variant.

Supervisors Selection Notes

Select this component when a single-channel supervisor with push-pull output is required. The 3.08V threshold suits applications monitoring 3.3V logic systems. The active low reset aligns with standard microprocessor reset inputs. Consider the 140ms minimum timeout for adequate power-on delay requirements.

Supervisors Part Context

This part belongs to the LM3712 series of supervisory circuits. It is designed for simple reset and power-on reset applications. The device integrates separate watchdog timer outputs for enhanced system protection. It serves as a critical component for ensuring stable operation in digital systems.

Supervisors Replacement Considerations

The LM3712XQBP-308 is a documented substitute part number within the same family. Verify pin compatibility and package dimensions before substitution. Ensure electrical parameters such as threshold voltage and reset timeout remain consistent.