LM4050QCEM3X5.0/NOPB

Voltage Reference Overview

The LM4050QCEM3X5.0/NOPB is an automotive-grade micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5.0 V with an initial accuracy of ±0.5%. The device features a temperature coefficient of 50 ppm/°C and operates within a junction temperature range of -40°C to +125°C. It is housed in a compact SOT-23 package and supports a maximum cathode current of 15 mA. The component is AEC-Q100 qualified for automotive applications.

Voltage Reference Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Micropower operation suitable for battery-powered systems
• Precision shunt regulation with low temperature drift

Voltage Reference Applications

• Automotive electronic control units
• Battery monitoring circuits
• Data acquisition systems requiring stable reference voltages

Voltage Reference Procurement Notes

Verify the specific suffix codes against the official datasheet to ensure correct voltage, tolerance, and packaging options. Confirm that the AEC-Q100 qualification status matches the intended automotive application requirements. Check for any recent process change notifications or obsolescence notices from Texas Instruments before finalizing procurement plans.

Voltage Reference Selection Notes

Select this component when automotive reliability and precision are required in space-constrained designs. The SOT-23 package offers a small footprint compared to larger alternatives. Ensure the system design accommodates the 15 mA maximum current capability and the specific 50 ppm/°C temperature coefficient for optimal performance across the operating temperature range.

Voltage Reference Part Context

This part belongs to the LM4050-N/-Q1 family of micropower shunt voltage references. The 'Q' designation indicates automotive qualification, while 'CEM3' specifies the SOT-23 package type. The '5.0' denotes the fixed 5.0 V output voltage, and '/NOPB' signifies lead-free and RoHS-compliant construction without specific copper wire bonding changes affecting function.