TL431BCDBZTG4

Overview

The TL431BCDBZTG4 is an adjustable precision shunt regulator from Texas Instruments, designed for automotive applications. It operates within a voltage range of 2.495V to 36V and supports a maximum output current of 100mA. The device features an initial accuracy of 0.5% and a maximum temperature coefficient of 92ppm/°C. It functions with a minimum cathode current of 1mA for regulation and withstands a maximum input voltage of 37V. The component is housed in a surface-mount SOT-23 package with three pins and is supplied in tape and reel format.

Feature Summary

• Provides adjustable reference voltage functionality suitable for precision control circuits
• Engineered specifically for automotive environments to meet reliability standards
• Delivers high initial accuracy for stable voltage regulation performance

Applications

• Automotive power supply regulation systems
• Precision voltage reference circuits in vehicle electronics
• Shunt regulator implementations in automotive-grade power management

Procurement Notes

Verify the specific suffix TG4 confirms automotive qualification and tape-and-reel packaging configuration. Ensure the design accommodates the SOT-23 thermal characteristics and the 0°C to 70°C operating temperature range. Confirm that the 100mA current limit aligns with the target circuit requirements before finalizing procurement.

Selection Notes

Select this component when automotive certification is mandatory for the application. It is appropriate for designs requiring a compact SOT-23 footprint with precise voltage referencing capabilities. Consider the 0.5% initial accuracy and 92ppm/°C temperature coefficient against the system's tolerance requirements. Verify compatibility with the intended input voltage levels not exceeding 37V.

Part Context

This part belongs to the TL431 family of adjustable shunt regulators manufactured by Texas Instruments. The BCDBZTG4 designation indicates a specific variant optimized for automotive use, featuring the standard SOT-23-3 package. It serves as a direct replacement for general-purpose TL431 devices where automotive reliability and specific packaging are required.

Replacement Considerations

The TL431BCDBVTG4 is a verified substitute offering identical electrical specifications and automotive qualification. Both parts share the same SOT-23-3 package and functional parameters, allowing for direct pin-to-pin interchangeability in existing designs without circuit modification.