PROGRAMMABLE PRECISION REFERENCES
TL431
Fig. 1 Test Circuit for V KA=VREF
INPUT
VREF
VKA
IKA
DUT
Fig. 2 Test Circuit for V KA≥VREF
INPUT
R1
IREF
R2
VREF
VKA
IKA
DUT
VKA=VREF(1+R1/R2)+IREF R1
Fig. 3 Test Circuit for IKA(off)
INPUT
VKA
IKA
DUT
4
JinYu
semiconductor
www.htsemi.com
Date:2011/05