TLVH431BIDCKRG4

Overview

The TLVH431BIDCKRG4 is an adjustable shunt voltage reference integrated circuit manufactured by Texas Instruments. It operates within a cathode voltage range of 1.24 V to 18 V and provides an initial accuracy tolerance of ±0.5%. The device supports a maximum output current of 70 mA and requires a minimum cathode current of 100 µA for regulation. It is housed in a compact SC-70-6 surface-mount package and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides precise adjustable voltage referencing with high initial accuracy
• Operates over a wide input voltage range up to 18 V
• Designed for low-power applications with minimal standby current requirements

Applications

• Portable battery-powered equipment requiring stable reference voltages
• DC-to-DC converter feedback loops for output regulation
• Comparator reference voltage sources in signal conditioning circuits

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free composition and RoHS compliance as per manufacturer standards. Confirm the SC-70-6 package variant matches the design footprint. Ensure the ±0.5% accuracy grade meets the system precision requirements before finalizing procurement specifications.

Selection Notes

Select this component when a low-voltage, high-accuracy reference is needed in space-constrained designs. The SC-70-6 package offers a smaller footprint compared to traditional SOT-23 or SOIC options. Consider the 18 V maximum rating against the system supply voltage to ensure adequate headroom for proper shunt regulator operation.

Part Context

This part belongs to the TLVH431 family of low-voltage adjustable shunt regulators from Texas Instruments. It serves as a modern alternative to legacy TL431 devices, offering improved performance in lower voltage domains. The family is widely used in power management applications where size and precision are critical constraints.

Replacement Considerations

Direct pin-compatible substitutes include the TLVH431BIDCKR. Verify that any replacement maintains the same ±0.5% accuracy grade and SC-70-6 package dimensions to ensure mechanical and electrical compatibility without redesigning the PCB layout.