TLVH431QLPRE3

Overview

The TLVH431QLPRE3 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a cathode voltage range of 1.24 V to 18 V and supports an adjustable output configuration. The device features an initial accuracy of ±1.5% and a temperature coefficient of 138 PPM/°C. It withstands a maximum series VREF input voltage of 20 V with a maximum shunt current of 70 mA. The minimum operating current is 100 µA, and it functions across a temperature range of -40°C to +125°C in a TO-92-3 through-hole package.

Feature Summary

• Provides adjustable precision voltage reference functionality for low-voltage applications
• Ensures stable regulation with specified initial accuracy and temperature stability
• Supports high cathode current capacity for robust shunt regulation performance

Applications

• Precision voltage references in power supply circuits
• Voltage monitoring and threshold detection systems
• Battery management system feedback loops

Procurement Notes

Verify the specific suffix PRE3 against the manufacturer's official documentation to confirm pinout compatibility and material composition changes. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the TO-92-3 through-hole package matches the target PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a through-hole adjustable shunt regulator with ±1.5% accuracy is required. The 70 mA cathode current capability suits moderate load applications. Verify that the 20 V maximum input voltage aligns with the circuit design constraints. Consider the 138 PPM/°C temperature coefficient for thermal stability requirements in the intended operating environment.

Part Context

This part belongs to the TLVH431 family of low-voltage adjustable precision shunt regulators from Texas Instruments. The family includes variants with different accuracies and packages. The TLVH431QLPRE3 specifically denotes the automotive-grade or qualified version in a TO-92-3 package, offering a cost-effective solution for general-purpose voltage referencing tasks.

Replacement Considerations

Check for direct replacements like TLVH431QLPR or TLVH431QLPRE3 equivalents from other manufacturers such as STMicroelectronics. Ensure pinout compatibility and electrical parameter alignment before substitution.