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| TL431TVG-AE2-R Datasheet, PDF (4/5 Pages) Unisonic Technologies – LINEAR INTEGRATED CIRCUIT | |||
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TL431TV
Preliminary
ï® TEST CIRCUIT
INPUT
VKA
IKA
LINEAR INTEGRATED CIRCUIT
VREF
UTC TL431
For VKA=VREF
ï® APPLICATION CIRCUIT
VKA=VREFÃ(1+R1/R2)+IREFÃR1
For VKAâ¥VREF
For IKA(OFF)
VOUT=(1+R1/R2)ÃVREF
Shutdown Regulator
VOUT=(1+R1/R2)ÃVREF
Minimum VOUT=VREF+5V
Output Control of a Three
-Terminal Fixed Regulator
VOUT=(1+R1/R2)ÃVREF
Higher-current Shunt Regulator
VIN
VOUT
IOUT
VIN
RS
IOUT
RCL
VOUT
RS
UTC
TL431
IOUT=VREF/RS
Constant-current Sink
UTC
TL431
IOUT =VREF/RCL
Current Limiting or Current Source
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R103-112.A
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