TEST CIRCUITS
TL431 Programmable Precision Reference
Fig 1.Test Circuit for VKA=Vref
VKA = Vref (1+ R1 )+ Iref‧R1
R2
Fig 2.Test Circuit for VKA>Vref
Fig 3.Test Circuit for Ioff
APPLICATION EXAMPLE
Fig 4.Test circuit for curves A of stability
boundary conditions
Fig 5.Test circuit for curves B.C and D of
stability boundary conditions
Fig 6.Shunt regulator
6
Fig 7.High current shunt regulator
2001-05-A