TL431 component calculator TL431CALC (ACTIVE)

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TL431 Component Calculator



The TL431CALC spreadsheet calculates all component parameters for any desired output voltage for the TL43x, TLV43x and TL1431. The spreadsheet includes limits for each device. Resistor values are calculated to the nearest 1% value.

Compatibility Issues

The user must have software that can read Microsoft Excel spreadsheets.

Software (1)

TI Devices (4)

Part Number Name Product Family
TL1431  Precision adjustable (programmable) shunt reference  Voltage references 
TL431  Adjustable precision shunt regulator  Voltage references 
TL432  Adjustable precision shunt regulator  Voltage references 
TLV431  1.5% Accuracy Low-Voltage Adjustable Precision Shunt Regulator  Voltage references 

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