TLVH431QLP

Overview

The TLVH431QLP is a low-power adjustable precision shunt regulator manufactured by Texas Instruments. It features an adjustable output voltage range from 1.24 V to 18 V, set via external resistors. The device offers initial accuracy options including 0.25%, 0.5%, 1%, and 1.5%. It operates with a wide current range of 100 µA to 60 mA and maintains a maximum temperature coefficient of 100 ppm/°C. The component supports a maximum reference input voltage of 18 V and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Adjustable output voltage capability spanning 1.24 V to 18 V
• Low operating current suitable for power-constrained designs
• Wide operating current range from 100 µA to 60 mA
• Guaranteed temperature stability over the full industrial range

Applications

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

Procurement Notes

Verify the specific suffix (e.g., QDBVRG4, QLPR) against the required package type and automotive qualification status. Confirm RoHS compliance and lead-free status as indicated in the datasheet. Check for end-of-life notices or production changes that may affect long-term availability. Ensure the selected variant matches the desired accuracy grade and thermal performance requirements for the target application environment.

Selection Notes

Select based on required output voltage precision and operating current needs. Choose packages like SOT-23-3 or TO-92-3 depending on space constraints and mounting preferences. Consider the temperature coefficient for applications requiring high stability across varying thermal conditions. Verify compatibility with external resistor divider networks for voltage setting.

Part Context

The TLVH431QLP belongs to the TLVH431 series of three-terminal adjustable shunt voltage references. This family is designed for low-power applications where space saving and energy efficiency are critical. It serves as a precise voltage reference in various power management and signal conditioning circuits, offering flexibility through adjustable output settings.

Replacement Considerations

Compatible substitutes include TLVH431 variants with matching package types and accuracy grades. Cross-reference with TLV431 series for similar functionality but verify input voltage limits and current capabilities. Ensure any replacement part meets the same temperature range and regulatory compliance standards.