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TS431 Schematic ( PDF Datasheet ) - Taiwan Semiconductor

Teilenummer TS431
Beschreibung Adjustable Precision Shunt Regulator
Hersteller Taiwan Semiconductor
Logo Taiwan Semiconductor Logo 




Gesamt 10 Seiten
TS431 Datasheet, Funktion
TS1431
Adjustable Precision Shunt Regulator
SOT-23
Pin Definition:
1. Cathode
2. Reference
3. Anode
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 0.22. 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: 0.2
Low Output Noise
Ordering Information
Part No.
Package
Packing
TS1431xCX RFG
SOT-23
3,000pcs / 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
Cathode Voltage
Continuous Cathode Current Range
Reference Input Current Range
Power Dissipation
Junction Temperature
Operating Temperature Range
Storage Temperature Range
VKA
IKA
IREF
PD
TJ
TOPR
TSTG
Limit
36
1 ~ +100
-0.05 ~ +10
0.30
+150
0 ~ +70
-65 ~ +150
Unit
V
mA
mA
W
oC
oC
oC
Document Number: DS_P0000229
1
Version: E15






TS431 Datasheet, Funktion
Typical Performance Characteristics
TS1431
Adjustable Precision Shunt Regulator
Test Circuit for Voltage Amplification
Figure 15: Small-Signal Voltage Gain and Phase Shirt vs. Frequency
Test Circuit for Reference Impedance
Figure 16: Reference Impedance vs. Frequency
Document Number: DS_P0000229
6
Version: E15

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