TS431-Z_14 Datasheet, PDF (1/10 Pages) Taiwan Semiconductor Company, Ltd – Adjustable Precision Shunt Regulator

TS431-Z
Adjustable Precision Shunt Regulator
SOT-23
TS431-Z
Pin Definition:
1. Reference
2. Cathode
3. Anode
TS431AR-Z
Pin Definition:
1. Cathode
2. Reference
3. Anode
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 V_REF to 36 volts with two
external resistors. These devices exhibit a wide operating current range to 250mA with a typical dynamic
impedance of 0.2Ω. 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 – V_REF 2.495V ±1% tolerance
● TS431B – V_REF 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 (T_A = 25^oC unless otherwise noted)
Parameter
Symbol
Limit
Cathode Voltage
Continuous Cathode Current Range
Reference Input Current Range
V_KA
36
I_K
+250
I_REF
10
Power Dissipation
Operating Temperature Range
Junction Temperature
Storage Temperature Range
P_D
T_OPER
T_J
T_STG
0.25
-20 ~ +85
-40 ~ +125
-40 ~ +125
Thermal Resistance Junction to Ambient
R_Ó¨JA
156
Note: R_Ó¨JA is measured with the PCB copper area of approximately 1 in² (Multi-Layer)
1/10
Unit
V
mA
mA
W
o_C
o_C
o_C
o_C/W
Version: C14