TL431 datasheet(1/15 Pages) TUOFENG

部件名	TL431

功能描述	TL431 Adjustable Reference Source

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制造商	TUOFENG [Shenzhen Tuofeng Semiconductor Technology Co]

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TL431

The TL431 is three-terminal adjustable shunt regulator

with specified termal stability.

The output voltage may be set to any value between

V REF(Approx. 2.5V) and 36V with two external resistors.

This device has a typical output inpedance of 0.2Ω.

Active output circuitry provides a very sharp turn-on

characteristic, making this device excellent

replacement for zener diodes in many application.

FEATURES

● Equivalent Full Range Temperature Coefficient 50PPM/℃

● Temperature Compensated For Operation Over

Full Rate Operating Temperature Range

● Adjustable Output Voltage

● Fast Turn-on Response

● Sink Current Capability 1㎃ to 100㎃

● Low (0.2Ω Typ.) Dynamic Output Impedance

● Low Output Noise

FUNCTION BLOCK DIAGRAM

2.495VREF

BLOCK DIAGRAM

REFERENCE

CATHODE

ANODE

REFERENCE(R)

ANODE(A)

CATHODE(K)

TO-92 (TOP VIEW)

1. REF

SOT-23

SOT-89

1.

2.

3.

1.

3.

2.

1.

2.

3.

2. ANODE

3. CATHODE

1. REF

2. ANODE

3. CATHODE

1. REF

3. ANODE

2. CATHODE

SHENZHEN TUOFENG SEMICONDUCTOR TECHNOLOGY CO.,LTD

$GMXVWDEOH5HIHUHQFH6RXUFH

TL431

ADJUSTABLE ACCURATE REFERENCE SOURCE

www.sztuofeng.com

1

Jan,2019 V1.0

MARKING

TO-92

SOT-23

SOT-89

TF/TL431/A817 w

TF/TL431/A818 w

431

w

431 w

*w：week code

类似零件编号 - TL431

制造商	部件名	数据表	功能描述
Motorola, Inc	TL431	258Kb / 16P	PROGRAMMABLE PRECISION REFERENCES
ON Semiconductor	TL431	173Kb / 18P	PROGRAMMABLE PRECISION REFERENCES April, 2012 ??Rev. 34
STMicroelectronics	TL431	152Kb / 10P	PROGRAMMABLE VOLTAGE REFERENCE Mar-2002
Texas Instruments	TL431	795Kb / 41P	ADJUSTABLE PRECISION SHUNT REGULATORS
Fairchild Semiconductor	TL431	87Kb / 10P	Programmable Shunt Regulator

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