MC34164LP

Supervisors Overview

The MC34164LP is a voltage supervisory circuit manufactured by Microsemi Corporation, designed for monitoring single-channel input voltages. It operates within a supply voltage range of 1 V to 10 V and features an open collector or open drain output type. The device provides a reset signal with a threshold voltage of 4.33 V and supports simple reset/power-on-reset functionality. It is housed in a TO-92-3 package suitable for through-hole mounting and functions reliably across an operating temperature range of 0°C to +70°C.

Supervisors Feature Summary

• Provides undervoltage sensing capabilities for portable microprocessor-based systems
• Features adjustable reset delay time for customized timing requirements
• Delivers low active current consumption for power-efficient operation

Supervisors Applications

• Portable microprocessor system reset controllers
• Battery-powered device voltage monitoring
• General-purpose power supply supervision

Supervisors Procurement Notes

Verify the manufacturer designation carefully, as the MC34164 series has been produced by multiple entities including onsemi and Microsemi. Confirm the specific suffix 'LP' corresponds to the TO-92-3 through-hole package variant. Ensure compatibility with existing PCB footprints and verify RoHS compliance status for the specific production batch before integration into final assemblies.

Supervisors Selection Notes

Select this component when a single-channel undervoltage monitor with a fixed 4.33 V threshold is required. The TO-92-3 package is appropriate for through-hole assembly processes. Consider the open-drain output configuration for interfacing with various logic levels. This part is suitable for applications requiring low quiescent current and simple reset generation without manual reset or watchdog timer functionalities.

Supervisors Part Context

The MC34164 series belongs to the family of voltage supervisory circuits intended for reset control in microprocessor systems. While originally associated with onsemi, Microsemi Corporation also produced variants such as the MC34164LP. These devices are categorized under PMIC - Power Management ICs and serve as fundamental components for ensuring stable system startup and operation by detecting out-of-specification voltage conditions.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include MC34164P-5G from onsemi, which shares similar supervisory functions but may differ in specific electrical parameters or packaging. Other historical variants like MC34164DM (8-SOIC) exist but require package adaptation. Verify pinout compatibility and threshold voltage tolerances when substituting.