TLVH431BILPR

Overview

The TLVH431BILPR is a low-voltage adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a supply voltage range up to 20 V and provides an adjustable output voltage from 1.24 V to 18 V. The device features an initial accuracy of 0.5% and a temperature coefficient of 138 PPM/C. It supports a maximum cathode current of 80 mA with a minimum operating current of 80 µA. The component functions reliably across an extended temperature range from -40°C to +125°C and is housed in a TO-92-3 through-hole package.

Feature Summary

• Adjustable output voltage capability ranging from 1.24 V to 18 V via external resistor divider
• High precision performance with 0.5% initial accuracy and stable temperature coefficient
• Wide operating temperature range suitable for industrial environments (-40°C to +125°C)
• Low power consumption with minimal operating current requirements

Applications

• Battery-operated equipment requiring precise voltage monitoring
• Switch-mode power supplies utilizing feedback regulation
• Data acquisition systems needing stable reference voltages
• Portable devices where space-saving through-hole packaging is preferred

Procurement Notes

Verify the specific suffix ILPR confirms the TO-92-3 through-hole package and 0.5% accuracy grade. Confirm RoHS compliance status as indicated in official documentation. Check for any product change notifications or end-of-life notices that may affect long-term availability. Ensure the ordering part number matches the required tolerance and package style for your design.

Selection Notes

Select this component when a through-hole solution is required for adjustable shunt regulation. The 0.5% accuracy suits applications demanding tighter tolerance than standard 1% references. Consider the 80 mA sink current capability for driving loads directly. Verify that the TO-92-3 footprint fits the PCB layout constraints compared to surface-mount alternatives like SOT-23.

Part Context

This part belongs to the TLVH431 family of low-voltage adjustable shunt regulators. It serves as a cost-effective alternative to traditional Zener diodes, offering superior temperature stability and lower dynamic impedance. The series includes various packages and accuracy grades to support diverse power management needs in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other TLVH431 variants with different packages (e.g., TLVH431AIL3T for SOT-23-3) or accuracy levels. Cross-reference with TLV431 series parts if higher current or different package styles are acceptable. Ensure pinout compatibility when replacing with similar shunt regulators from other manufacturers.