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ATL431LI_V02 Datasheet(Hoja de datos) 9 Page - Texas Instruments

No. de Pieza. ATL431LI_V02
Descripción  ATL431LI / ATL432LI High Bandwidth Low-Iq Programmable Shunt Regulator
Descarga  29 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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 9 page
background image
Ioff
VKA
Input
Iref
IKA
VKA
Input
Vref
R1
R2
KA
ref
ref
R1
V
= V
1 +
+ I
× R1
R2
æ
ö
ç
÷
è
ø
Vref
Input
VKA
IKA
9
ATL431LI
ATL432LI
www.ti.com
SLVSDU6D – JULY 2017 – REVISED NOVEMBER 2019
Product Folder Links: ATL431LI ATL432LI
Submit Documentation Feedback
Copyright © 2017–2019, Texas Instruments Incorporated
9 Parameter Measurement Information
Figure 17. Test Circuit for VKA = Vref
Figure 18. Test Circuit for VKA > Vref
Figure 19. Test Circuit for Ioff
9.1 Temperature Coefficient
The deviation of the reference voltage, Vref, over the full temperature range is known as VI(dev). The parameter of
VI(dev) can be used to find the temperature coefficient of the device. The average full-range temperature
coefficient of the reference input voltage, αVref, is defined as:
αVref is positive or negative, depending on whether minimum Vref or maximum Vref, respectively, occurs at the
lower temperature. The full-range temperature coefficient is an average and therefore any subsection of the rated
operating temperature range can yield a value that is greater or less than the average. For more details on
temperature coefficient, check out Voltage Reference Selection Basics.




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