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PDF LL431 Data sheet ( Hoja de datos )
| Número de pieza | LL431 | |
| Descripción | PROGRAMMABLE PRECISION REFERENCE | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
LL431
LINEAR INTEGRATED CIRCUIT
PROGRAMMABLE PRECISION
REFERENCE
DESCRIPTION
The UTC LL431 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 VREF
(approximately 2.5V) and 36 V with two external resistors. It
can be used in provides very wide applications including shunt
regulator, series regulator, switching regulator, voltage reference
and others.
FEATURES
*Programmable output Voltage to 36V.
*Low dynamic output impedance 0.2Ω.
*Sink current capability of 1.0 to 100mA.
*Equivalent full-range temperature coefficient of 50ppm/ °C
typical for operation over full rated operating temperature range.
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
Package
LL431K-AE3-R
LL431G-AE3-R
SOT-23
LL431NSK-AE3-R
LL431NSG-AE3-R
SOT-23
Note: Pin Code: K: Cathode A: Anode R: Reference
Pin Assignment
123
KRA
RKA
LL431G-AE3-R
(1)Packing Type
(2)Package Type
(3)Halogen Free
(1) R: Tape Reel, T: Tube
(2) AE3: SOT-23
(3) G: Halogen Free, K: Lead Free
Packing
Tape Reel
Tape Reel
MARKING
PACKAGE
SOT-23
MARKING
www.DataShSeeOt4TU-2.3com
(LL431NS)
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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QW-R121-020,B
1 page  
LL431
TEST CIRCUIT
LINEAR INTEGRATED CIRCUIT
For VKA=VREF
APPLICATION CIRCUIT
VIN VoUT
R1
VREF
R2
UTC LL431
VOUT=(1+R1/R2)*VREF
Shutdown Regulator
For VKA≧ VREF
For IKA(OFF)
VIN
IN
UTC7805 OUT
COMMON
VoUT
R1
UTC LL431
VREF
R2
VOUT=(1+R1/R2)*VREF
Output Control of a Three
-Terminal Fixed Regulator
VIN VoUT
R1
VREF
R2
UTC LL431
VOUT=(1+R1/R2)*VREF
Higher-current Shunt Regulator
Constant-current Sink
Current Limiting or Current Source
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
www.DataSohtheeetr4pUa.croammeters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 5
QW-R121-020,B
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet LL431.PDF ] | |
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