SCV431ASN1T1G

Overview

The SCV431ASN1T1G is a low voltage precision adjustable shunt regulator from the TLV431 series, manufactured by onsemi. It features an internal reference voltage of 1.24 V and offers programmable output voltage ranging from 1.24 V to 16 V. The device provides a reference accuracy of ±1.0% at 25 °C and ±2.0% over the industrial temperature range of -40 °C to 85 °C. It exhibits a sharp low current turn-on characteristic with a dynamic impedance of 0.25 Ω over an operating current range of 0.1 mA to 20 mA. The component is housed in a SOT-23-3 package and is qualified under AEC-Q100 standards.

Feature Summary

• AEC-Q100 qualified for automotive applications with PPAP capability
• Programmable output voltage range spanning 1.24 V to 16 V
• Sharp low current turn-on characteristic with low dynamic impedance
• Micro miniature SOT-23-3 package design

Applications

• Low output voltage switching power supply error amplifier
• Adjustable voltage or current linear and switching power supplies
• Voltage monitoring circuits
• Current source and sink circuits
• Low voltage zener diode replacements

Procurement Notes

Verify that the specific ordering suffix matches the required package type and tape & reel specifications. Confirm that the SCV prefix aligns with unique site and control change requirements mandated for automotive or high-reliability applications. Ensure compliance with Pb-Free and Halide-Free material declarations as specified in the datasheet documentation.

Selection Notes

Select this component when precise voltage referencing is required in compact designs. The SOT-23-3 package suits space-constrained PCB layouts. Consider the ±1.0% initial accuracy and wide operating current range for stable regulation. Verify thermal resistance characteristics against ambient temperature conditions to ensure reliable operation within the specified junction temperature limits.

Part Context

This device belongs to the TLV431 family of low voltage precision adjustable shunt regulators. The SCV prefix specifically denotes devices intended for automotive and other applications requiring unique site and control change requirements. These components are designed to replace traditional zener diodes while offering superior precision and programmability in feedback loop control applications.

Replacement Considerations

TLV431ASN1T1G

FAQ

What is the minimum cathode current required for regulation?

The minimum cathode current for regulation is typically 30 µA, with a maximum guaranteed value of 80 µA.

How does the SCV prefix differ from standard TLV431 parts?

The SCV prefix indicates that the device is qualified under AEC-Q100 standards and is PPAP capable, meeting specific site and control change requirements for automotive applications.