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| TL431LL Datasheet, PDF (4/6 Pages) Unisonic Technologies – LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR | |||
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TL431LL
ï® TEST CIRCUIT
R1
VIN
VREF
Preliminary
LINEAR INTEGRATED CIRCUIT
VKA
IKA
R3
VIN
R1
IREF
R2
VREF
VKA
IKA
VKA=VREF (1+R1/R2)+IREFÃR1
Figure 1. Test Circuit 4 for VKA=VREF
VIN
R1
IOFF
VKA
Figure 2. Test Circuit 5 for VKA>VREF
Figure 3. Test Circuit 6 for IOFF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R103-072.a
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