LM431L ETC-unknow, LM431L Datasheet

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LM431L

Manufacturer Part Number
LM431L
Description
Shunt Regulator
Manufacturer
ETC-unknow
Datasheet
Shunt Regulator
TAITRON COMPONENTS INCORPORATED
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General Description
Features
N The LM431 Series ICs are low voltage three-terminal
N The LM431L precision reference is offered in three voltage
N These ICs are available in 4 packages: TO-92, SOT-23, SOT-23-5 and SOT-89.
.
N Programmable Precise Output Voltage from
N High Stability under Capacitive Load
N Low Temperature Deviation
N Low Dynamic Output Impedance: 0.05 to 0.22Ÿ Typical
N Operating Current from 80µA to 50/100mA.
N Low Output Noise Voltage
N RoHS Compliance
replacements for Zener diodes in many applications such as
digital voltmeters, power supplies and op amp circuitry
tolerance for V
.
1.24V to 16/18V
(800)-TAITRON (800)-824-8766 (661)-257-6060
(800)-TAITFAX
stability over a full operation range. These monolithic ICs
voltage reference operate as a low temperature coefficient
Zener which is programmable from Vref to 18V with two external
resistors. These devices exhibit a wide operating current range
of 80µA to 50/100mA with a typical dynamic impedance of 0.05 to
0.22Ÿ. The characteristics of these references make them excellent
programmable shunt regulators with guaranteed thermal
REF
(800)-824-8329
=1.240V: 1.5%, 1.0% and 0.5%.
(661)-257-6415
www.taitroncomponents.com
LM431L LM431LA LM431LB
Applications
N Graphic Card
N PC Motherboard
N Voltage Adapter
N Switching Power Supply
N Charger
SOT-23-5
TO-92
Shunt Regulator
Rev. A/DX 2007-06-04
SOT-23
Page 1 of 13
SOT-89

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LM431L Summary of contents

Page 1

... 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 N The LM431L precision reference is offered in three voltage tolerance for V =1.240V: 1.5%, 1.0% and 0.5%. REF N These ICs are available in 4 packages: TO-92, SOT-23, SOT-23-5 and SOT-89 ...

Page 2

... Ordering Information Pin Configuration Outline: Z Outline: N5 SOT-23-5 www.taitroncomponents.com TO-92 Shunt Regulator LM431L Outline: N SOT-23 Outline: K SOT-89 Rev. A/DX 2007-06-04 Page ...

Page 3

... N5:SOT-23-5 K: SOT-89 Shunt Regulator Symbols LM431L LM431LA LM431LB -100 ~ +100 3 10 150 - -40 ~ 125 -65 ~ 150 700 770 350 370 550 370 - 770 180 150 360 330 230 250 - 50 Rev. A/DX 2007-06-04 LM431L Unit ° C ° C ° ° C/W Page ...

Page 4

... KA REF Shunt Regulator LM431L LM431LB Test Unit Circuit Min. Typ. Max. 1.234 1.240 1.246 V Fig Fig (Note1 -0.5 -1.5 mV/V Fig.2 - 0.15 0.4 µA Fig.2 - 0.1 0.4 µA Fig µA Fig 100 nA Fig Fig ...

Page 5

... Note1: www.taitroncomponents.com Fig.3- Test Circuit for I OFF Note2: Shunt Regulator LM431L Rev. A/DX 2007-06-04 Page ...

Page 6

... Typical Characteristics Curves Fig.4- V REF Junction Temperature I Fig.6- K – Cathode Voltage V www.taitroncomponents.com - (° ( (V) KA Shunt Regulator LM431L Fig. REF J Junction Temperature T (° (2) Fig. – KA Cathode Voltage V (V) KA Rev. A/DX 2007-06-04 Page ...

Page 7

... Fig. Frequency f (Hz) Fig.10- ¨V REF Junction Temperature www.taitroncomponents.com - (° Shunt Regulator LM431L Fig.9- Pulse Response Time t (µs) Fig.11 Frequency f (Hz) Rev. A/DX 2007-06-04 Page ...

Page 8

... Typical Application Fig.13- High Current Shunt Regulator www.taitroncomponents.com Fig.12-Shunt Regulator Fig.14- Current Source of Current Limit Shunt Regulator LM431L Rev. A/DX 2007-06-04 Page ...

Page 9

... Typical Application (Continued) www.taitroncomponents.com Fig.15- Precision 5V 1A Regulator Fig.16- PWM Converter with Reference Shunt Regulator LM431L Rev. A/DX 2007-06-04 Page ...

Page 10

... Device Marking Code Circuit Tolerance Blank 1.5% LM431L A 1.0% B 0.5% Dimensions in inches (mm) www.taitroncomponents.com SOT-23 (N) SOT-23-5 (N5) 24A 24A EA7 E6A EA6 E5A TO-92 Shunt Regulator LM431L SOT-89 (K) N/A E41B E41A Rev. A/DX 2007-06-04 Page ...

Page 11

... Shunt Regulator SOT-23 SOT-23-5 LM431L Rev. A/DX 2007-06-04 Page ...

Page 12

... Shunt Regulator SOT-89 LM431L Rev. A/DX 2007-06-04 Page ...

Page 13

... US HEADQUARTERS Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415 Email: taitron@taitroncomponents.com Http://www.taitroncomponents.com 42970 MEXICO Tel: +52-55-5560-1519 Fax: +52-55-5560-2190 Tel: +55-11-5574-7949 Fax: +55-11-5572-0052 Tel: +86-21-5424-9942 Fax: +86-21-5424-9931 Shunt Regulator LM431L Rev. A/DX 2007-06-04 Page ...

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