TL431L Unisonic Technologies, TL431L Datasheet

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TL431L

Manufacturer Part Number
TL431L
Description
Manufacturer
Unisonic Technologies
Datasheet

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TL431L
PROGRAMMABLE PRECISION
REFERENCE
guaranteed thermal stability over applicable temperature ranges.
The output voltage may be set to any value between V
(approximately 2.5V) and 20V with two external resistors. It provides
very wide applications, including shunt regulator, series regulator,
switching regulator, voltage reference and others.
*Programmable output Voltage to 20V.
*Low dynamic output impedance 0.2Ω.
*Sink current capability of 1.0 ~ 100mA.
*Equivalent full-range temperature coefficient of 50ppm/ °C typical
Note: Pin Code: K: Cathode
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
for operation over full rated operating temperature range.
The UTC TL431L is a three-terminal adjustable regulator with a
TL431L-SM1-R
TL431L-AB3-R
TL431L-AE3-R
TL431L-SM1-T
TL431L-AF5-R
TL431L-S08-R
TL431L-S08-T
TL431L-T92-B
TL431L-T92-K
TL431L-T92-R
ORDERING INFORMATION
DESCRIPTION
FEATURES
Normal
TL431LK-AB3-R
Order Number
UNISONIC TECHNOLOGIES CO., LTD
Lead Free Plating
TL431LK-SM1-R
TL431LK-SM1-T
TL431LK-AB3-R
TL431LK-AE3-R
TL431LK-AF5-R
TL431LK-S08-R
TL431LK-T92-R
TL431LK-S08-T
TL431LK-T92-B
TL431LK-T92-K
(1)Packing Type
(2)Package Type
(3)Lead Plating
A: Anode
R: Reference
R A K
K R A
X X K R A
K A A X X A A R
K A A X X A A R
K X X X X A X R
K X X X X A X R
R A K
R A K
R A K
1 2 3 4 5 6 7 8
Pin Assignment
(1) B: Tape Box, K: Bulk, R: Tape Reel , T: Tube
(2) AB3: SOT-89, AE3: SOT-23, AF3: SOT-25,
(3) K: Lead Free Plating, Blank: Pb/Sn
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-
-
-
-
S 08: SOP-8, SM1: MSOP-8, T92: TO-92
X: No Connection
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REF
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-
-
-
-
-
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LINEAR INTEGRATED CIRCUIT
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*Pb-free plating product number: TL431LK
Package
MSOP-8
MSOP-8
SOT-89
SOT-23
SOT-25
SOP-8
SOP-8
TO-92
TO-92
TO-92
SOT-89
MSOP-8
SOT-23
3
1
2
1
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Box
Packing
Tube
Tube
Bulk
1
3 2
TO-92
SOT-25
SOP-8
QW-R103-014,E
1
4
5
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TL431L Summary of contents

Page 1

... TL431L PROGRAMMABLE PRECISION REFERENCE DESCRIPTION The UTC TL431L is a three-terminal adjustable regulator with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between V (approximately 2.5V) and 20V with two external resistors. It provides very wide applications, including shunt regulator, series regulator, switching regulator, voltage reference and others ...

Page 2

... TL431L BLOCK DIAGRAM REFERENCE 2.5V V REF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT CATHODE ANODE CATHODE (K) REFERENCE (R) ANODE( QW-R103-014,E ...

Page 3

... TL431L ABSOLUTE MAXIMUM RATINGS PARAMETER Cathode Voltage Cathode Current Range (Continuous) Reference Input Current Range Operating Junction Temperature Operating Ambient Temperature Storage Temperature Note Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ...

Page 4

... TL431L TYPICAL CHARACTERISTICS Cathode Current vs. Cathode Voltage Ta=25℃ 125 REF 100 -25 -50 -75 -100 - Cathode Voltage (V) Change in Reference Input Voltage vs. Cathode voltage 0 -5 -10 -15 -20 -25 -30 I =100mA -35 KA Ta=25℃ - Cathode Voltage (V) Dynamic Impedance vs. Frequency ...

Page 5

... Output Control of a Three-Terminal Fixed Regulator V OUT OUT REF S Current Limiting or Current Source LINEAR INTEGRATED CIRCUIT INPUT I KA(OFF) Test Circuit For REF R2 UTC TL431L V =(1+R1/R2)*V OUT Higher-Current Shunt Regulator I OUT V OUT R CL UTC TL431L REF CL QW-R103-014 UTC TL431L KA(OFF) V ...

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