TLVH431BICT

Overview

The TLVH431BICT is a low-power adjustable shunt voltage reference manufactured by STMicroelectronics. It provides an output voltage range from 1.24 V to 18 V, set via an external resistor divider. The device features a typical dynamic impedance of 0.22 Ω and operates with a cathode current range of 100 µA to 60 mA. It offers a voltage precision of ±0.5% and maintains a maximum temperature coefficient of 100 ppm/°C across the -40 °C to +125 °C operating temperature range. The component is housed in a SOT-89-3 surface-mount package.

Feature Summary

• Adjustable output voltage capability ranging from 1.24 V to 18 V using external resistors
• Low operating current consumption suitable for power-restricted designs
• High sink current capability up to 60 mA
• Guaranteed temperature stability over the full industrial temperature range

Applications

• Battery chargers
• Switch mode power supplies
• Battery operated equipment
• Data acquisition systems
• Energy management circuits

Procurement Notes

Verify the specific suffix 'ICT' corresponds to the SOT-89-3 package and ±0.5% accuracy grade when sourcing. Confirm RoHS compliance status and ensure the ordering code matches the required tolerance and thermal performance specifications for the target application environment.

Selection Notes

Select this component for applications requiring space-saving surface mount solutions with precise voltage regulation. The wide operating current range allows flexibility in biasing conditions. Ensure the design accommodates the 1.24 V minimum reference voltage and verify that the external resistor network supports the desired output level within the 18 V maximum limit.

Part Context

The TLVH431 series consists of three-terminal adjustable shunt voltage references designed for high precision and stability. This family includes variants with different accuracies and packages, such as SOT-23-3L, SOT-23-5L, and SOT-323-6L. The TLVH431BICT specifically utilizes the SOT-89-3 package, offering a compact form factor for dense PCB layouts while maintaining robust electrical performance.

Replacement Considerations

Compatible substitutes include other adjustable shunt references with similar voltage ranges and current capabilities. Verify pinout compatibility and thermal characteristics before substitution. Cross-reference with TI or other manufacturers' equivalents ensuring matching accuracy grades and package dimensions.