TL431-AB3-T Просмотр технического описания (PDF) - Unisonic Technologies
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TL431-AB3-T Datasheet PDF : 6 Pages
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TL431
TEST CIRCUIT
INPUT
VREF
VKA
IKA
UTC TL431
For VKA=VREF
APPLICATION CIRCUIT
VIN
VoUT
R1
VREF
R2
UTC TL431
Vo=(1+R1/R2)*VREF
Shutdown Regulator
LINEAR INTEGRATED CIRCUIT
INPUT
R1
IREF
R2 VREF
VKA
IKA
UTC TL431
VKA=VREF*(1+R1/R2)+IREF*R1
For VKA≧ VREF
INPUT
VKA
IKA(OFF)
UTC TL431
For IKA(OFF)
VIN
IN
OUT
UTC7805
VoUT
COMMON
R1
UTC TL431
VREF
R2
Vo=(1+R1/R2)*VREF
Output Control of a Three
-Terminal Fixed Regulator
VIN
VoUT
R1
VREF
R2
UTC TL431
Vo=(1+R1/R2)*VREF
Higher-current Shunt Regulator
VIN
VoUT
Io
VIN
Rs
Io
RCL
VoUT
UTC TL431
Rs
IO=VREF/RS
Constant-current Sink
UTC TL431
RS=VREF/RCL
Current Limiting or Current Source
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R103-003,R
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