TS1431_15 Datasheet, PDF (1/10 Pages) Taiwan Semiconductor Company, Ltd – Adjustable Precision Shunt Regulator

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 V_REF 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 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 (T_A = 25^oC 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
V_KA
I_KA
I_REF
P_D
T_J
T_OPR
T_STG
Limit
36
1 ~ +100
-0.05 ~ +10
0.30
+150
0 ~ +70
-65 ~ +150
Unit
V
mA
mA
W
o_C
o_C
o_C
Document Number: DS_P0000229
1
Version: E15