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ATL431LI_V02 Datasheet(Hoja de datos) 10 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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 10 page
background image
Ps
0
VKA (V)
Itest
IKA(min)
IKA
KA
R1
Z
1
R2
§
·
¨
¸
©
¹
V
z'
I
'
'
KA
KA
KA
V
Z
I
'
'
10
ATL431LI
ATL432LI
SLVSDU6D – JULY 2017 – REVISED NOVEMBER 2019
www.ti.com
Product Folder Links: ATL431LI ATL432LI
Submit Documentation Feedback
Copyright © 2017–2019, Texas Instruments Incorporated
9.2 Dynamic Impedance
The dynamic impedance is defined as:
. When the device is operating with two external resistors
(see Figure 18), the total dynamic impedance of the circuit is given by:
which is approximately equal to
.
The VKA of the ATL431LI can be affected by the dynamic impedance. The ATL431LI test current Itest for VKA is
specified on the Eletrical Characteristics . Any deviation from Itest can cause deviation on the output VKA.
Figure 20 shows the effect of the dynamic impedance on the VKA.
Figure 20. Dynamic Impedance




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