TPR5045-VS1R-S

Overview

The TPR5045-VS1R-S is a fixed-output voltage reference from the TPR50 series, manufactured by 3PEAK. It provides a nominal output voltage of 4.5 V with an initial accuracy of ±0.05%. The device operates within an input voltage range of 3 V to 15 V and supports bidirectional current sourcing and sinking of ±10 mA. Key electrical characteristics include a typical temperature coefficient of 2 ppm/°C from −40°C to 105°C and low noise performance of 3 μVpp/V in the 0.1 Hz to 10 Hz band. It features a dropout voltage of 400 mV at ±10 mA load and functions across a junction temperature range of −40°C to +125°C.

Feature Summary

• High precision with 0.05% maximum initial accuracy and low temperature drift for stable reference performance.
• Bidirectional output capability supporting both sourcing and sinking currents up to ±10 mA.
• Integrated noise reduction pin allows external filtering to minimize output noise levels.
• Low dropout voltage design ensures efficient operation across wide input voltage ranges.

Applications

• Battery test equipment
• Industry control systems
• Precision instrumentation
• Medical equipment

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the VS1R designation indicates MSOP8 packaging. Confirm that the component meets RoHS3 compliance and halogen-free requirements if mandated by project specifications. Ensure the supply chain source provides valid datasheets matching revision A.2 or later to guarantee accurate thermal and stability data alignment with current manufacturing standards.

Selection Notes

Select this component when a fixed 4.5 V reference with high initial accuracy is required. The MSOP8 package suits applications needing compact surface-mount solutions. Consider the NR pin for noise-sensitive designs requiring additional filtering. Verify that the system input voltage remains within the 3 V to 15 V range and that thermal dissipation calculations align with the MSOP8 thermal resistance parameters under expected operating conditions.

Part Context

This part belongs to the TPR50 series of low-noise, low-drift precision voltage references. The series offers multiple fixed output voltages ranging from 1.25 V to 5 V. The TPR5045 variant specifically targets applications requiring a 4.5 V reference. The series is designed for high-resolution systems where temperature stability and low noise are critical performance factors.

Replacement Considerations

TPR5045-SO1R is the SOP8 package equivalent within the same product family.

FAQ

How does the NR/TR pin function on the TPR5045?

The NR/TR pin serves as a noise reduction input. Connecting a capacitor of 10 nF or larger from this pin to ground minimizes the output noise level. It can also be used for output voltage trimming with external resistor dividers.

What is the maximum capacitive load supported by the TPR5045?

The device supports a capacitive load ranging from 0.1 μF to 100 μF, ensuring stability under various output filtering conditions.