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TS1431 Datasheet(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

Part No. TS1431
Description  Adjustable Precision Shunt Regulator
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Maker  TSC [Taiwan Semiconductor Company, Ltd]
Homepage  http://www.taiwansemi.com
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TS1431 Datasheet(HTML) 1 Page - Taiwan Semiconductor Company, Ltd

 
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TS1431
Adjustable Precision Shunt Regulator
1/10
Version: D14
SOT-23
General Description
TS1431 series integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage
references operate as a low temperature coefficient zener which is programmable from VREF to 36 volts with two
external resistors. These devices exhibit a wide operating current range of 1.0 to 100mA with a typical dynamic
impedance of 0.22Ω. The characteristics of these references make them excellent replacements for zener diodes in
many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5V reference makes it
convenient to obtain a stable reference from 5.0V logic supplies, and since The TS1431 series operates as a shunt
regulator, it can be used as either a positive or negative stage reference.
Features
Precision Reference Voltage
TS1431A – 2.495V±1%
TS1431B – 2.495V±0.5%
Equivalent Full Range Temp. Coefficient: 50ppm/ ºC
Programmable Output Voltage up to 36V
Fast Turn-On Response
Sink Current Capability of 1~100mA
Low Dynamic Output Impedance: 0.2Ω
Low Output Noise
Ordering Information
Part No.
Package
Packing
TS1431xCX RF
SOT-23
3kpcs / 7” Reel
TS1431xCX RFG
SOT-23
3kpcs / 7” Reel
Note: “G” denote for Green Product
Where xx denotes voltage tolerance
A: ±1%, B: ±0.5%
Application
Voltage Monitor
Delay Timmer
Constant –Current Source/Sink
High-Current Shunt Regulator
Crow Bar
Over-Voltage / Under-Voltage Protection
Block Diagram
Absolute Maximum Ratings (TA = 25oC unless otherwise noted)
Parameter
Symbol
Limit
Unit
Cathode Voltage
VKA
36
V
Continuous Cathode Current Range
IKA
1 ~ +100
mA
Reference Input Current Range
IREF
-0.05 ~ +10
mA
Power Dissipation
PD
0.30
W
Junction Temperature
TJ
+150
oC
Operating Temperature Range
TOPR
0 ~ +70
oC
Storage Temperature Range
TSTG
-65 ~ +150
oC
Pin Definition:
1. Cathode
2. Reference
3. Anode


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