TLVH431IDCKT

Overview

The TLVH431IDCKT is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of up to 20 V and provides an adjustable output voltage from 1.24 V to 18 V. The device features a typical initial accuracy of ±1.5% and a maximum temperature coefficient of 161 ppm/°C. It supports a cathode current range from 100 µA to 70 mA, with a maximum sink current capability of 70 mA. The component functions reliably across an operating temperature range of -40°C to +85°C and is housed in a compact SC-70-6 surface-mount package.

Feature Summary

• Adjustable output voltage set via external resistor divider
• Low operating current suitable for power-restricted designs
• Wide operating current range from 100 µA to 70 mA
• Compact SC-70-6 surface-mount package

Applications

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

Procurement Notes

Verify the specific suffix 'IDCKT' against the manufacturer's official datasheet to confirm the exact accuracy grade (±1.5%) and temperature range (-40°C to +85°C). Ensure the SC-70-6 package matches the design footprint requirements. Confirm RoHS compliance status through the latest production data documentation before finalizing procurement specifications.

Selection Notes

Select this component when a low-cost, space-saving adjustable reference is required for applications with moderate accuracy needs. The ±1.5% tolerance distinguishes it from higher-precision variants like the 0.5% or 0.25% options. Verify that the 70 mA sink current meets the circuit load requirements and that the -40°C to +85°C temperature range aligns with the operational environment constraints.

Part Context

The TLVH431 series consists of low-power adjustable shunt voltage references designed for applications where space saving is critical. This family offers various accuracy grades and packages, including SOT-23 and SC-70 formats. The ID variant specifically denotes the ±1.5% accuracy class, providing a balance between cost and performance for general-purpose voltage regulation tasks in portable and industrial electronics.

Replacement Considerations

Direct substitutes include other TLVH431 variants with matching SC-70-6 packaging and similar electrical characteristics. Check for equivalent accuracy grades and temperature ranges when selecting alternatives from Texas Instruments or other manufacturers offering compatible three-terminal shunt regulators.