TLVH431BCDBZR

Overview

The TLVH431BCDBZR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 1.24 V to 18 V and features an initial accuracy of ±0.5%. The device supports a cathode current range from 100 µA to 70 mA, with a maximum input voltage of 20 V. It utilizes a SOT-23-3 surface-mount package and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Provides adjustable output voltage via external resistor divider
• Ensures high precision with ±0.5% initial accuracy
• Operates with wide current range for flexible design

Applications

• Battery chargers
• Switch mode power supplies
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'B' indicates the ±0.5% accuracy grade and 'Q' denotes automotive qualification if applicable to the exact revision. Confirm the SOT-23-3 package matches the target PCB footprint. Check RoHS compliance status against current environmental regulations before finalizing procurement.

Selection Notes

Select this component when precise low-voltage reference stability is required in space-constrained designs. The ±0.5% tolerance suits applications demanding tighter regulation than standard 1% or 1.5% variants. Ensure the operating environment stays within the specified -40°C to +125°C range for guaranteed performance.

Part Context

This part belongs to the TLVH431 family of low-voltage adjustable precision shunt regulators. It serves as a drop-in replacement for traditional Zener diodes in voltage reference and control loop applications. The family offers various accuracy grades and packages to accommodate different cost and performance requirements.

Replacement Considerations

Compatible substitutes include TLVH431ACDBZR (±0.25%) and TLVH431IDBZR (±1.5%). Automotive-grade versions like TLVH431BQDBZR may offer enhanced reliability standards. Verify pinout compatibility and thermal characteristics when substituting.