LM4040BIM3X-4.1

Overview

The LM4040BIM3X-4.1 is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed reverse breakdown voltage of 4.096 V. It operates within an industrial temperature range from -40°C to +85°C and utilizes a SOT-23 surface-mount package. The device specifies an initial accuracy tolerance of ±0.2% at 25°C and maintains a maximum temperature coefficient of 150 ppm/°C across the operating range. Maximum operating current is rated at 15 mA.

Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy
• Incorporates bandgap reference temperature drift curvature correction for stable performance over wide temperature ranges

Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process controls
• Automotive applications

Procurement Notes

Verify the specific suffix 'X' indicates tape-and-reel packaging configuration when sourcing. Confirm that the 'B' grade designation aligns with the required ±0.2% initial accuracy specification for your design. Ensure the component meets RoHS compliance requirements if mandated by your manufacturing standards.

Selection Notes

Select this component for space-critical designs requiring a sub-miniature SOT-23 footprint. It is suitable for applications needing a fixed 4.096 V reference without external compensation components. Consider the 15 mA maximum current limit and 150 ppm/°C temperature coefficient when evaluating thermal stability needs.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt voltage references. The series offers various fixed voltages including 2.048 V, 2.5 V, 3 V, 5 V, 8.192 V, and 10 V. It is designed for low-power applications where small physical size and high precision are primary constraints.

Replacement Considerations

LM4040BIM3-4.1/NOPB is a verified equivalent part number offering identical electrical specifications in the same SOT-23 package.