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TS431-Z Datasheet(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

Part No. TS431-Z
Description  Adjustable Precision Shunt Regulator
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Manufacturer  TSC [Taiwan Semiconductor Company, Ltd]
Direct Link  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS431-Z Datasheet(HTML) 1 Page - Taiwan Semiconductor Company, Ltd

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TS431-Z
Adjustable Precision Shunt Regulator
1/10
Version: C14
SOT-23
General Description
TS431 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 to 250mA with a typical dynamic
impedance of 0.2
Ω. 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 2.495V reference makes it
convenient to obtain a stable reference from 5.0V logic supplies, and since The TS431 operates as a shunt
regulator, it can be used as either a positive or negative stage reference.
Features
Programmable Output Voltage up to 36V
TS431A – VREF 2.495V ±1% tolerance
TS431B – VREF 2.495V ±0.5% tolerance
Fast Turn-On Response
Sink Current Capability: 200mA
Low Dynamic Output Impedance: 0.2Ω (Typ)
Min. Operating Cathode Current: 0.2mA (Typ)
Halogen Free
Ordering Information
Part No.
Package
Packing
TS431ACX-Z RFG
SOT-23
3kpcs / 7” Reel
TS431ARCX-Z RFG
SOT-23
3kpcs / 7” Reel
TS431BCX-Z RFG
SOT-23
3kpcs / 7” Reel
Note: “G” denotes for Halogen- and Antimony-free as those which
contain <900ppm bromine, <900ppm chlorine (<1500ppm total
Br + Cl) and <1000ppm antimony compounds
Block Diagram
Absolute Maximum Ratings (TA = 25
oC unless otherwise noted)
Parameter
Symbol
Limit
Unit
Cathode Voltage
VKA
36
V
Continuous Cathode Current Range
IK
+250
mA
Reference Input Current Range
IREF
10
mA
Power Dissipation
PD
0.25
W
Operating Temperature Range
TOPER
-20 ~ +85
oC
Junction Temperature
TJ
-40 ~ +125
oC
Storage Temperature Range
TSTG
-40 ~ +125
oC
Thermal Resistance Junction to Ambient
RӨJA
156
oC/W
Note: RӨJA is measured with the PCB copper area of approximately 1 in
2 (Multi-Layer)
TS431-Z
Pin Definition:
1. Reference
2. Cathode
3. Anode
TS431AR-Z
Pin Definition:
1. Cathode
2. Reference
3. Anode


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