Spice Model fpr TIP35C/TIP36C - diyAudio
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Old 19th December 2003, 04:47 AM   #1
sam9 is offline sam9  United States
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Default Spice Model fpr TIP35C/TIP36C

Anyone have or know where to find Soice models for TIP35/TIP36? I know these are kind of old, but . . .

An equivalent by another name will do.
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Old 19th December 2003, 08:02 AM   #2
Netlist is offline Netlist  Belgium
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TIP35
.MODEL QPWR NPN (IS=1.84P NF=1 BF=81.5 VAF=161 IKF=8.33 ISE=1.97N NE=2
+ BR=4 NR=1 VAR=20 IKR=12.5 RE=13.2M RB=53M RC=5.3M XTB=1.5
+ CJE=801P VJE=.6 MJE=.3 CJC=520P VJC=.22 MJC=.2 TF=54.1N TR=2.08U)

TIP36
.MODEL QPWR PNP (IS=1.84P NF=1 BF=65 VAF=161 IKF=8.33 ISE=2.47N NE=2
+ BR=4 NR=1 VAR=20 IKR=12.5 RE=13.2M RB=53M RC=5.3M XTB=1.5
+ CJE=1.81N VJE=.6 MJE=.3 CJC=1.17N VJC=.22 MJC=.2 TF=54.1N TR=2.08U)

/Hugo
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Old 19th December 2003, 05:26 PM   #3
sam9 is offline sam9  United States
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Netlist,

Thanks much. Where did you find those, if I may ask? I spent an hour doing web searchs with not luck.
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Old 19th December 2003, 05:37 PM   #4
Netlist is offline Netlist  Belgium
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10 seconds here
http://www.google.nl/search?sourceid...&q=tip35+model
Fourth link.

Good luck

/Hugo
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Old 19th December 2003, 06:01 PM   #5
sam9 is offline sam9  United States
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Guess you have to specify the search just right. I probably used "TIP35C" rather than "TIP35". Oh well.

Thanks again
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Old 19th December 2003, 06:18 PM   #6
Netlist is offline Netlist  Belgium
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I admit one has to be lucky sometimes.
In case you want a datasheet too:
http://katalogi.iele.polsl.gliwice.p...ile=50&start=0

/Hugo
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Old 13th February 2007, 03:19 PM   #7
lineup is offline lineup  Sweden
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Default Re: Spice Model fpr TIP35C/TIP36C

Quote:
Originally posted by sam9

Anyone have or know where to find Spice models for TIP35/TIP36?
I know these are kind of old, but . . .
.

Lineup Audio Lab comment:

TIP35C + TIP36C
is a quite nice Output Pair.
Especially when make a Performance/Price compare.

They can do very fine in moderate to medium power output level amplifiers.
Say <= 50-60 Watt RMS

Here you have the SPICE MODELS
directly from manufacturer www.OnSemi.com website:
Quote:
**************************************
* SPICE3 Models from www.OnSemi.com
* http://www.onsemi.com/PowerSolutions...do?type=models
**************************************
*
* Datasheet PDF: http://www.onsemi.com/pub/Collateral/TIP35A-D.PDF
* Data: 125W, 100V
* Collector Current:
* − Continuous: 25 Ampere
* − Peak, Note1: 40 Ampere
* Thermal Resistance Rjc: 1.0 C/W
* Package: TO-218 ( SOT-93 )

.MODEL tip35c npn(
+IS=7.88586e-11 BF=256.257 NF=0.951481 VAF=25.9112
+IKF=6.91656 ISE=6.4e-12 NE=3.4 BR=4.49993
+NR=1.08286 VAR=4.40924 IKR=3.69854 ISC=3.9e-13
+NC=3.99 RB=20.929 IRB=0.1 RBM=0.135255
+RE=0.000998231 RC=0.0563125 XTB=0.1 XTI=1
+EG=1.10826 CJE=1e-07 VJE=0.421306 MJE=0.693953
+TF=1e-08 XTF=1.35777 VTF=1.00063 ITF=0.9994
+CJC=5e-10 VJC=0.400277 MJC=0.409924 XCJC=0.803124
+FC=0.720291 CJS=0 VJS=0.75 MJS=0.5
+TR=4.99888e-07 PTF=0 KF=0 AF=1)
* Model generated on Feb 8, 2004
* Model format: SPICE3

.MODEL tip36c pnp(
+IS=7.88586e-11 BF=256.257 NF=0.951481 VAF=25.9112
+IKF=6.91657 ISE=6.4e-12 NE=3.4 BR=4.49993
+NR=1.08286 VAR=4.40924 IKR=3.69854 ISC=3.9e-13
+NC=3.99 RB=20.929 IRB=0.1 RBM=0.135255
+RE=0.000998231 RC=0.0563123 XTB=0.1 XTI=1
+EG=1.10826 CJE=1e-07 VJE=0.4 MJE=0.735975
+TF=1e-08 XTF=1.35769 VTF=1 ITF=0.99952
+CJC=5e-10 VJC=0.400257 MJC=0.409987 XCJC=0.80312
+FC=0.724857 CJS=0 VJS=0.75 MJS=0.5
+TR=2.03153e-07 PTF=0 KF=0 AF=1)
* Model generated on Feb 8, 2004
* Model format: SPICE3
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Old 13th August 2010, 02:51 PM   #8
Maitchy is offline Maitchy  New Zealand
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Note that the TIP35 and TIP35C models give quite different results... the only difference should be their Breakdown Voltage ratings, of course. But it reflects the fact that the datasheets for the TIP35 family from different manufacturers varies greatly, e.g. the typical hFE at Vce=4 peaks at about 0.8A for most manufacturers, but 0.2A or below for On Semiconductor; the typical hFE at the peak varies from about 60 (for ST) to over 200 (for MOSPEC). The Spice 3 models from ON and ST are identical (from MODPEX) but the datasheet curves are very different. The minimum hFE specs might be the same, but typical values for lots of important parameters vary.

I think that the difference in the models is more significant than merely trying to match different hFE curves (although I have to investigate this further). The TIP35C models give really bad simulation results for the SLB amplifier (huge distortion as it moves out of Class A), but the TIP35 model is great. Okay, not many people will be familiar with the SLB amplifier (Hi Ian!) but the point is that the different models make a huge difference to using simulations for some interesting amplifier topologies... not just a bit of distortion miscalculation in fact, but gives a totally different picture of what is going on. (What's the emoticon for "there's no surprise in my voice"?)

Last edited by Maitchy; 13th August 2010 at 02:53 PM. Reason: (had to clarify *which* curves)
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