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FA431Z データシート(PDF) 3 Page - First Silicon Co., Ltd

部品番号 FA431Z
部品情報  PROGRAMMABLE PRECISION REFERENCES
PDF  5 Pages
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メーカー  FS [First Silicon Co., Ltd]
ホームページ  http://www.firstsilicon.co.kr/
Logo FS - First Silicon Co., Ltd

FA431Z データシート(HTML) 3 Page - First Silicon Co., Ltd

  FA431Z Datasheet HTML 1Page - First Silicon Co., Ltd FA431Z Datasheet HTML 2Page - First Silicon Co., Ltd FA431Z Datasheet HTML 3Page - First Silicon Co., Ltd FA431Z Datasheet HTML 4Page - First Silicon Co., Ltd FA431Z Datasheet HTML 5Page - First Silicon Co., Ltd  
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Input
FIGURE 1-TEST CIRCUIT FOR VKA = Vref
off
I
KA
V
Input
FIGURE 3-TEST CIRCUIT FOR I off
FIGURE 2-TEST CIRCUIT FOR VKA＞Vref
IK
IK
VKA
VKA
Input
R1
R2
Iref
VKA = Vref ( 1+
) + Iref R1
R1
R2
Max.
Min.
T1
T2
AMBIENT TEMPERATURE
-
Vref (Min.)
ΔTa = T2 - T1
Vref
Vref
Vref
ΔVref = Vref (Max.)
Vref
Example : ΔVref = 8.0mV and slope is positive,
Vref at 25℃=2.495V, ΔTa=70℃
0.008 106
α
Vref =
= 45.8 ppm/℃
70 (2.495)
Note 2: The dynamic impedance Zka is defined as:
ΔVKA
|Zka| =
ΔIk
When the device is programmed with two external
resistors, R1 and R2, (refer to Figure 2) the total
dynamic impedance of the circuit is defined as:
R1
|Zka’| = |Zka| (1+
)
R2
Note 1:
The deviation parameter ΔVref is defined as the differences
between the maximum and minimum values obtained over the
full operating ambient temperature range that applies.
The average temperature coefficient of the Reference
input voltage, ΔVref , is defined as:
ΔVref
(
)
106
ppm
Vref at 25℃
α
Vref (
) =
ΔTa
ΔVref
106
=
ΔTa(Vref at 25℃)
α
Vref can be positive or negative depending on whether
Vref Min. or Vref Max. occurs at the lower ambient temperature.
2012. 05. 02
3/5
FA431Z/ZS/ZF
Revision No : 4
℃
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