REF3425QDBVRQ1

Overview

The REF3425QDBVRQ1 is an automotive-grade precision voltage reference from Texas Instruments, designed for high-reliability applications. It delivers a fixed output voltage of 2.5 V with an initial accuracy of 0.05% and a maximum temperature coefficient of 6 ppm/°C. The device operates within a supply voltage range up to 12 V and draws a quiescent current of 95 µA. It is housed in a compact SOT-23-6 package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for long-term reliability
• High precision performance with low initial accuracy error and minimal temperature drift
• Compact surface-mount packaging suitable for space-constrained circuit designs

Applications

• Traction inverter systems
• Battery management systems
• Sensor signal conditioning circuits

Procurement Notes

Verify the component authenticity by checking the manufacturer's part marking against official datasheet specifications. Confirm that the device carries the Q1 suffix indicating automotive grade compliance. Ensure the ordering information matches the specific package variant and temperature rating required for your design. Request relevant quality certificates if necessary for production validation.

Selection Notes

Select this component when designing circuits requiring stable reference voltages under varying thermal conditions. It is suitable for applications demanding high accuracy without the need for external trimming. Consider the quiescent current consumption relative to system power budgets. Verify input voltage limits do not exceed the maximum rated value during operation.

Part Context

This device belongs to the REF34x-Q1 family of precision voltage references engineered specifically for automotive environments. The series offers various fixed output voltages while maintaining consistent performance characteristics across the extended industrial temperature range. These components are integral to power management subsystems where signal integrity is critical.

Replacement Considerations

Direct substitutes include other members of the REF34x-Q1 series with different fixed output voltages, such as REF3430QDBVRQ1 or REF3433QDBVRQ1, provided the system voltage requirements align. Non-series replacements must match the SOT-23-6 package, pinout configuration, and electrical specifications closely.