TL431BCPW

Overview

The TL431BCPW is an adjustable precision shunt regulator manufactured by Texas Instruments, housed in a TSSOP-8 surface-mount package. It provides an initial accuracy of 0.5% and operates with a temperature coefficient of 92 PPM/C. The device supports a maximum series input voltage of 36 V and handles a maximum shunt current of 100 mA. Minimum operating current is specified at 600 uA. The component functions within a temperature range from -40 C to +125 C.

Feature Summary

• Adjustable output voltage capability via external resistors
• High precision regulation with low dynamic impedance
• Wide operating temperature range for industrial applications

Applications

• Switching power supply feedback loops
• Battery chargers
• Voltage monitoring circuits

Procurement Notes

Verify the specific suffix 'BCPWR' against the manufacturer's official documentation to confirm the exact grade and packaging configuration. Confirm RoHS compliance status directly from the datasheet as required for regulatory adherence. Ensure the procurement channel sources genuine components to avoid counterfeit risks associated with obsolete or high-demand reference devices.

Selection Notes

Select this component when precise voltage referencing is required in space-constrained designs utilizing surface-mount technology. The B-grade accuracy suits applications demanding tighter tolerance than standard variants. Verify that the thermal management capabilities of the TSSOP-8 package align with the expected power dissipation in the target circuit environment.

Part Context

This part belongs to the TL431 family of programmable precision references widely used in power management. The BC designation indicates a specific accuracy grade, while the PWR suffix denotes the TSSOP-8 tape-and-reel packaging format. It serves as a fundamental building block for analog control loops requiring stable reference voltages.

Replacement Considerations

Consult the manufacturer's official substitution guide for verified equivalents. Generic replacements may differ in pinout, accuracy, or thermal performance. Validate any substitute against the original datasheet specifications before implementation.