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TL431 PDF Data sheet ( 特性 )

部品番号 TL431
部品説明 ADJUSTABLE PRECISION SHUNT REGULATOR
メーカ Diodes
ロゴ Diodes ロゴ 



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TL431 Datasheet, TL431 PDF,ピン配置, 機能
TL431/TL432
ADJUSTABLE PRECISION SHUNT REGULATOR
Description
The TL431 and TL432 are three terminal adjustable shunt
regulators offering excellent temperature stability and output
current handling capability up to 100mA. The output voltage
may be set to any chosen voltage between 2.5 and 36 volts
by selection of two external divider resistors.
The devices can be used as a replacement for zener diodes
in many applications requiring an improvement in zener
performance. Diodes’ TL431 has the same electrical
specifications as the industry standard ‘431 and is available
in 2 grades with initial tolerances of 1% and 0.5% for the
A and B grades respectively.
Features
Temperature range -40 to +125ºC
Reference Voltage Tolerance at 25°C
TL431A: 2.495V ± 1.0%
TL431B: 2.495V ± 0.5%
Low Output Noise
0.2Typical Output Impedance
Sink Current Capability: 1mA to 100mA
Adjustable Output Voltage: VREF to 36V
All devices are:
Totally Lead-Free & Fully RoHS compliant
(Notes 1 & 2)
Halogen and Antimony Free. “Green” Device
(Note 3)
Pin Assignments
TL431
(Top View)
CATHODE 1
3 ANODE
REF 2
SOT23
(Top View)
NC
Leave floating or
connect to pin 5
2
5 ANODE
CATHODE 3
4 REF
SOT25
(Top View)
CATHODE 1
ANODE 2
ANODE 3
NC 4
8 REF
7 ANODE
6 ANODE
5 NC
SO-8
SO-8 is a future product
Applications
Opto-Coupler Linearisers
Shunt Regulators
Improved Zener
Variable Reference
TL432
(Top View)
REF 1
CATHODE 2
3 ANODE
SOT23
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony free,
"Green" and Lead-Free.
3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
TL431
*SO-8 is a future package
Document number: DS35044 Rev. 6 - 2
1 of 14
www.diodes.com
April 2012
© Diodes Incorporated

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