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AN2859 Folha de dados(PDF) 26 Page - STMicroelectronics

Nome de Peças AN2859
Descrição Electrónicos  Multiplexed diagnostics of AC switches using two STCC08
PDF  29 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2859 Folha de dados(HTML) 26 Page - STMicroelectronics

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Resistor settings
AN2859
26/29
DocID15255 Rev 2
C.2
Second case: V2_Min > V1_Max
Equations 29 and 33 define respectively V1_Max and V2_Min (see Appendix A). To take into
account R3 resistor’s standardized values, the resistor’s tolerance (XR), the STCC08 AVF
output electrical dispersion and the DC power supply characteristic, the condition on R2 and
R4 resistors is defined by Equation 46.
Equation 43
Equation 44
Equation 45
Equation 46
1_Max
2_Min
V
V
>
R_Max
4
3
2
R_Min
4
AVF_L_Min
R_Min
2
CC_Min
2_Min
X
·
R
R
R
·X
R
R
·
V
X
·
R
·
V
V
⎟
⎠
⎞
⎜
⎝
⎛
+
+
⎟
⎠
⎞
⎜
⎝
⎛ +
+
=
R_Min
4
2
1
R_Max
2
1
AVF_L_Max
R_Max
4
CC_Max
1_Max
X
·
R
R
R
X
·
R
R
·
V
X
·
R
·
V
V
⎟
⎠
⎞
⎜
⎝
⎛
+
+
⎟
⎠
⎞
⎜
⎝
⎛
+
+
=
AVF_L_Min
2
R_Min
R_Max
CC_Max
AVF_L_Min
2
R_Min
R_Max
AVF_L_Max
3
2
R_Min
R_Max
AVF_L_Max
CC_Min
2
4
V
X
X
·
V
V
X
X
·
V
·
R
X
X
V
V
·
R
R
−
⎟⎟
⎟
⎠
⎞
⎜⎜
⎜
⎝
⎛
⎥
⎥
⎥
⎦
⎤
⎢
⎢
⎢
⎣
⎡
−
⎟⎟
⎟
⎠
⎞
⎜⎜
⎜
⎝
⎛
−
⎥
⎥
⎥
⎦
⎤
⎢
⎢
⎢
⎣
⎡
⎟⎟
⎟
⎠
⎞
⎜⎜
⎜
⎝
⎛
−
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