UCC391PW

Overview

The UCC391PW is an adjustable series voltage reference integrated circuit manufactured by Texas Instruments. It provides a stable output voltage ranging from 1.3V to 3.5V with a maximum output current of 150 µA. The device features a low temperature coefficient and high line regulation, ensuring precision in varying thermal and electrical conditions. It is housed in an 8-TSSOP package (4.40mm width) suitable for surface-mount applications. The component operates within a commercial temperature range of 0°C to 70°C and is RoHS compliant.

Feature Summary

• Adjustable output voltage capability spanning 1.3V to 3.5V
• Low temperature coefficient for enhanced thermal stability
• High line regulation performance
• Compact 8-TSSOP surface-mount packaging

Applications

• Precision analog-to-digital converter (ADC) references
• Digital-to-analog converter (DAC) voltage sources
• Portable battery-powered instrumentation
• Medical equipment requiring stable bias voltages

Procurement Notes

Verify the specific suffix and revision level against the official Texas Instruments datasheet to ensure compatibility with design requirements. Confirm that the 8-TSSOP package dimensions match the PCB footprint exactly. Check for moisture sensitivity level (MSL) handling requirements during storage and assembly. Ensure the supplier provides traceability documentation consistent with RoHS3 standards.

Selection Notes

Select this component when a precise, adjustable voltage reference is needed for low-current applications. Consider the 150 µA output limit and ensure the load does not exceed this capacity. Evaluate the thermal environment to confirm operation within the 0°C to 70°C range. Compare the adjustable feature against fixed-voltage alternatives if the required voltage falls outside the 1.3V–3.5V window.

Part Context

The UCC391PW belongs to the UCC39xx series of voltage references from Texas Instruments. This family is designed for general-purpose precision applications where space and power consumption are critical constraints. The PW suffix denotes the 8-TSSOP package variant. It serves as a foundational reference element in mixed-signal circuits, providing a stable baseline for other active components.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's cross-reference guide or technical support for verified equivalents.