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TL431BCDBVT 数据表(PDF) 19 Page - Texas Instruments

部件名 TL431BCDBVT
功能描述  TL431, TL432 Precision Programmable Reference
PDF  85 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

TL431BCDBVT 数据表(HTML) 19 Page - Texas Instruments

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7 Parameter Measurement Information
Vref
Input
VKA
IKA
Figure 7-1. Test Circuit for VKA = Vref
Iref
IKA
VKA
Input
Vref
R1
R2
KA
ref
ref
R1
V
= V
1 +
+ I
× R1
R2
æ
ö
ç
÷
è
ø
Figure 7-2. Test Circuit for VKA > Vref
Ioff
VKA
Input
Figure 7-3. Test Circuit for Ioff
7.1 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, refer to the Voltage Reference Selection Basics White Paper.
www.ti.com
TL431, TL432
SLVS543S – AUGUST 2004 – REVISED MAY 2024
Copyright © 2024 Texas Instruments Incorporated
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Product Folder Links: TL431 TL432



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