TL431ACLPM

Overview

The TL431ACLPM is an adjustable shunt voltage reference manufactured by Texas Instruments. It operates within a cathode voltage range of 2.495V to 36V and supports a maximum output current of 100mA. The device features an initial accuracy of ±1% and a maximum temperature coefficient of 92ppm/°C. It is housed in an 8-pin SOIC surface-mount package with a maximum input voltage rating of 37V. The component functions as a precision reference for power supply regulation and monitoring applications.

Feature Summary

• Provides precise programmable reference voltage functionality via external resistor divider
• Features low dynamic output impedance for stable regulation performance
• Includes internal bandgap reference circuitry for accurate threshold detection

Applications

• Adjustable power supplies
• Onboard voltage regulation
• Switching power supply feedback loops
• Undervoltage monitoring circuits

Procurement Notes

Verify the specific suffix against official documentation, as variations may indicate differences in packaging or manufacturing origin. Confirm RoHS compliance status and active lifecycle status through authorized channels before procurement. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when a high-precision adjustable reference is required in a compact surface-mount form factor. Consider the ±1% tolerance and temperature stability for applications demanding strict voltage regulation. Evaluate the 100mA sink capability against load requirements and ensure compatibility with the system's operating temperature range.

Part Context

This part belongs to the TL431 family of programmable shunt regulators widely used in industrial and consumer electronics. The TL431 series serves as a versatile alternative to Zener diodes, offering superior accuracy and temperature stability. It is commonly integrated into isolated flyback converters and linear regulator designs requiring precise error amplification.

Replacement Considerations

Compatible substitutes include the TL431ACD and TL431AIDBZR from Texas Instruments, which share similar electrical characteristics and pin configurations.