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TS431A の電気的特性と機能

TS431AのメーカーはTaiwan Semiconductorです、この部品の機能は「Adjustable Precision Shunt Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 TS431A
部品説明 Adjustable Precision Shunt Regulator
メーカ Taiwan Semiconductor
ロゴ Taiwan Semiconductor ロゴ 




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TS431A Datasheet, TS431A PDF,ピン配置, 機能
TS431/431A/431B
Adjustable Precision Shunt Regulator
Sink Current Capability up to 100mA
General Description
The TS431/431A/431B 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 2.5volt reference makes it convenient to
obtain a stable reference from 5.0volt logic supplies, and since The TS431/431A/431B operates as a shunt regulator, it
can be used as either a positive or negative stage reference.
This series is offered in 3-pin TO-92, SOT-89, SOT-23 and SOP-8 package.
Features
Standard Application
— Precision Reference Voltage
TS431 2.495V±2%
TS431A 2.495V±1%
TS431B 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 1.0 to 100 mA
— Low Dynamic Output Impedance: 0.22
— Low Output Noise
Ordering Information
Block Diagram
Pin Assignment
Part No.
Operating Temp.
(Ambient)
TS431xCT
TS431xCY
-20 ~ +85 oC
TS431xCX
TS431xCS
Note: Where x denotes voltage tolerance.
Blank: ±2%
A: ±1%
B: ±0.5%
Package
TO-92
SOT-89
SOT-23
SOP-8
TS431/A/BCT
1
2
3
TS431/A/BCY
1
2
3
Pin No.
TS431/A/BCX
1
3
2
TS431/A/BCS
8
2,3,6,7
1
4,5
Pin
Description
Reference
Anode
Cathode
Non connect
TS431/A/B
1-8 2003/12 rev. A

1 Page





TS431A pdf, ピン配列
Note 4. Deviation of reference input voltage, VDEV, is defined as the maximum deviation of the reference over the full
temperature range.
The average temperature coefficient of the reference input voltage αVref is defined as:
| αVref | = [ VDEV / Vref(25 oC) ] * 106 / T2 – T1…………………….. (PPM/ oC)
Where: T2-T1 = full temperature change.
αVref can be positive or negative depending on whether the slope is positive or negative.
Example: Maximum Vref=2.496V at 30oC, minimum Vref=2.492V at 0oC, Vref=2.495V at 25oC, T=70 oC
| αVref | = [ 4mV / 2495mV ] * 106 / 70oC 23ppm/oC
Note 5. The dynamic output impedance, Rz, is defined as:
| Zka | = Vka / Ika
When the device is programmed with two external resistors R1and R2 (see Figure 2). The dynamic output
impedance of the overall circuit, is defined as :
| Zka | = v / i | Zka | * ( 1 + R1 / R2)
Test Circuits
TS431/A/B
3-8 2003/12 rev. A


3Pages


TS431A 電子部品, 半導体
Typical Performance Characteristics
TS431/A/B
6-8 2003/12 rev. A

6 Page



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共有リンク

Link :


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