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PDF TS431-Z Data sheet ( Hoja de datos )
| Número de pieza | TS431-Z | |
| Descripción | Adjustable Precision Shunt Regulator | |
| Fabricantes | Taiwan Semiconductor | |
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SOT-23
Pin Definition:
1. Reference
2. Cathode
3. Anode
TS431-Z
Adjustable Precision Shunt Regulator
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 0.2Ω. 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
● Fast Turn-On Response
● Sink Current Capability: 200mA
● Low Dynamic Output Impedance: 0.2Ω (Typ)
● Min. Operating Cathode Current: 0.2mA (Typ)
● Halogen Free
Block Diagram
Ordering Information
Part No.
Package
Packing
TS431ACX-Z RFG SOT-23
3Kpcs / 7” Reel
TS431BCX-Z RFG SOT-23
3Kpcs / 7” Reel
Note: TS431A – VREF 2.495V ±1%
TS431B – VREF 2.495V ±0.5%
“G” denotes for Halogen free products
Absolute Maximum Rating (Ta = 25oC unless otherwise noted)
Parameter
Symbol
Limit
Cathode Voltage
VKA 36
Continuous Cathode Current Range
IK +250
Reference Input Current Range
IREF 10
Power Dissipation
PD 0.25
Operating Temperature Range
TOPER
-20 ~ +85
Junction Temperature
TJ -40 ~ +125
Storage Temperature Range
TSTG
-40 ~ +125
Thermal Resistance Junction to Ambient
ӨJA 156
Note: ӨJA is measured with the PCB copper area of approximately 1 in2 (Multi-Layer)
Unit
V
mA
mA
W
oC
oC
oC
oC/W
1/10 Version: B11
1 page  
Applications Examples (Continue)
TS431-Z
Adjustable Precision Shunt Regulator
Figure 10: TRIAC Crowbar
Vin Vout
<Vref V+
>Vref ≈0.74V
Figure 11: SCR Crowbar
Figure 12: Single-Supply Comparator with
Temperature-Compensated Threshold
Figure 13: Constant Current Sink
Figure 14: Delay Timer
5/10
Version: B11
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet TS431-Z.PDF ] | |
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