Other Parts Discussed in Thread: , TINA-TI
I am currently using the TL431-Q1 as a 2.495V reference. I went to http://www.ti.com/product/TL431/toolssoftware and downloaded the PSPICE model "TL431 Family Unencrypted PSpice Transient and AC Model (Rev B)" I created a simple test-bench in LTSpice and even though the model works, LTspice reports many issues with curly braces and floating nodes. Even though the model works, can someone look at the file and determine if the floating nodes are ok or if the mode is broken?
I got errors when trying to attach the files. So nothing attached.
Here are the issues by line number...
Line 61: E_E23 2 N16955404 VALUE { {I(V_V16)*15.6} }, there are double sets of curly braces. Fixed this by replacing the inside braces with parentheses.
Line 68: E_E24 4 N16955473 VALUE { {I(V_V17)*10} }, same issue as above
Line 80: E_E25 3 N16955532 VALUE { {I(V_V18)*100} }, same issue as above
Line 67: X_H8 7 N169559021 IKA 6 TL431_H8, Node "IKA" is floating.
Line 82: V_V19 N16985445 0 0Vdc, Node "N156985445" is floating.
LTspice Log File
Circuit: * Y:\LTSpice\TL431\TL431-sine.asc
Questionable use of curly braces in "b§e_e23 2 n16955404 v={i(v_v16)*15.6} "
Error: undefined symbol in: "[i](v_v16)*15.6"
Questionable use of curly braces in "b§e_e24 4 n16955473 v={i(v_v17)*10} "
Error: undefined symbol in: "[i](v_v17)*10"
Questionable use of curly braces in "b§e_e25 3 n16955532 v={i(v_v18)*100} "
Error: undefined symbol in: "[i](v_v18)*100"
WARNING: Less than two connections to node U1:IKA. This node is used by H:U1:_H8:_H8.
WARNING: Less than two connections to node U1:N16985445. This node is used by V:U1:_V19.
Direct Newton iteration for .op point succeeded.
Ignoring empty pin current: Ix(u1:11)
Ignoring empty pin current: Ix(u1:11)
Changing Tseed to 2.92969e-10
Date: Fri Mar 27 09:56:47 2020
Total elapsed time: 1.683 seconds.
tnom = 27
temp = 27
method = modified trap
totiter = 2869
traniter = 2862
tranpoints = 1254
accept = 1178
rejected = 75
matrix size = 36
fillins = 17
solver = Normal
Matrix Compiler1: 1.66 KB object code size 0.3/0.2/[0.1]
Matrix Compiler2: 2.43 KB object code size 0.2/0.3/[0.2]