LM810M3X-2.93

Supervisors Overview

The LM810M3X-2.93 is a single-channel power supply support circuit manufactured by Texas Instruments, designed for microprocessor reset applications. It operates within an extended temperature range of -40°C to +105°C and utilizes a compact SOT-23 (PDSO3) three-pin package. The device features a fixed threshold voltage of 2.93 V with an overvoltage threshold of 3.0 V. It provides an active-high, push-pull reset output and includes a reset delay time of 840 ms. The maximum supply voltage is 5.5 V, and the typical operating supply current is 18 µA.

Supervisors Feature Summary

• Provides reliable system reset via active-high, push-pull output
• Monitors single input channel for undervoltage conditions
• Ensures stable operation through defined reset delay timing

Supervisors Applications

• Microprocessor system hardware monitoring
• Voltage supervision in portable electronic devices
• Embedded system power management circuits

Supervisors Procurement Notes

Verify component authenticity against official Texas Instruments documentation before integration. Confirm that the specific suffix matches the required electrical characteristics and package type. Ensure compliance with RoHS directives and check for any end-of-life notifications or recommended alternates from the manufacturer. Validate thermal performance within the specified operating temperature range during final design review.

Supervisors Selection Notes

Select this component when a low-power, single-channel supervisor with an active-high output is required. The fixed 2.93 V threshold suits systems requiring precise monitoring of lower voltage rails. Consider the 18 µA quiescent current for battery-operated designs. Verify that the SOT-23 package fits the available PCB space and that the 840 ms delay aligns with the target processor's startup requirements.

Supervisors Part Context

This part belongs to the LM810 series of 3-pin microprocessor reset circuits. It complements the LM809 series, which typically offers active-low outputs. Both families share similar architectural features but differ in output polarity. The LM810 series is specifically engineered for applications necessitating active-high reset signals, providing flexibility in interface design for various logic families and microcontrollers.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include LM810M3-2.93/NOPB. Verify pinout compatibility and electrical parameter equivalence before substitution.