Part Number: TIDA-01556

Recently I’ve been trying to develop a solar battery charging system with MPPT for a camera project, but I don’t have a PV panel for now. So I want to use the model circuit of PV panel to verify the MPPT algorithm in TIDA-01556.

However, I don’t quite understand the solar panel model described in the ref design file, as presented in the below figure:

1.Does it mean I should connect 14 Zener Diodes in series, and put them parallel with the current source?

2.How could I change the maximum power point of the model circuit? By changing the current source or the resistors?

Besides, I wonder whether I could use a DC voltage source in series with a resistor, as shown in the below figure, to verify the MPPT algorithm provided in TIDA-01556:

As can be considered, this circuit can provide the maximum power to the charger when V_bus=u_s / 2. Can the MPPT algorithm in TIDA-01556 be used to track this power point? Is it reasonable to verify the MPPT algorithm in this way?

Is there any other way to verify the MPPT algorithm without a PV panel (even without the Zener diodes)?

 Thanks a lot.

Tool/software: TINA-TI or Spice Models

Hi All,
First post. I am learning Tina-Ti. I need to add a few Germanium transistors to the library. After searching, I found a .LIB file for LTSpice,
Here is the contents of that file (Germanium.LIB)
Thanks in advance for any help you can muster.

*Germanium.lib
.MODEL 1N60 D RS=50.0559 EG=1.11 XTI=3 VJ=0.8 M=0.1 FC=0.5 BV=40 CJO=1.75p IS=1.37773u N=2 TT=100n type=germanium
.model AA112 D is=1.2u n=1.4 rs=80 cjo=1.2p tt=18n eg=0.69 type=germanium
.MODEL AEG_AA112 D(IS=2.777779u RS=35.67365 BV=20 IBV=0.0022 CJO=1p TT=1p M=0.5 VJ=1 N=2.172326 EG=0.67 FC=0.5 type=germanium)
.MODEL AEG_AA117 D(IS=1.111111E-05 RS=46.02731 BV=115 IBV=0.006 CJO=1p TT=1p ISR=1.581139E-06 M=0.5 VJ=0.5 N=3.542911 IKF=0.03 NR=29.56001 EG=0.67 FC=0.5 XTI=3.012615 NBV=14.78 IBVL=0.00007 NBVL=22.17001 type=germanium
.model OA90-G D(Is=54.12u N=4.209 Rs=42.72 Ikf=0 Xti=3 Eg=1.11 Cjo=1p M=.3333 Vj=.75 Fc=.5 Isr=13.54E-21 Nr=4.62 Bv=22.5 Ibv=100u Tt=5n type=germanium)
.model OA90-M D(Is=120.5u N=7.405 Rs=48.89 Ikf=0 Xti=3 Eg=1.11 Cjo=1p M=.3333 Vj=.75 Fc=.5 Isr=10.36E-21 Nr=4.99 Bv=40 Ibv=100u Tt=5n type=germanium)
.model OA91 D(Is=19.43u N=2.986 Rs=65.98 Ikf=0 Xti=3 Eg=1.11 Cjo=1.326p M=.3333 Vj=.75 Fc=.5 Isr=2.787u Nr=1.954 Bv=100 Ibv=100u Tt=5n type=germanium)
.model OA95 D is=68.06u N=4.056 Rs=45.41 Ikf=78.67 Xti=3 Cjo=1.326p M=.3333 Vj=.75 Fc=.5 Isr=10.42E-21 Nr=4.612 Bv=100 Ibv=100u Tt=5n type=germanium
.MODEL 1N34A D(IS=2.6u RS=6.5 N=1.6 CJO=0.8p EG=0.67 BV=75 IBV=1m Type=GePunctualContact)
.MODEL 1N34A_ D (is=0.2u bv=75 cjo=0.5p eg=0.67 ibv=18m rs=7 n=1.3 vj=0.1 m=0.27 Type=GePunctualContact)


.MODEL AC127 NPN(IS=5u ISC=5u ISE=600n IKF=300m ITF=300m NC=2 NE=2 BF=160 BR=5 RB=100 RC=1.5 vaf=50 var=50 CJC=200p CJE=60p TR=3u TF=600n FC=0.5 eg=0.72 VJC=0.4 VJE=0.4 VTF=4 MJC=0.333 MJE=0.333 XTB=1.5 XTF=6 XTI=3 Vceo=12 Icrating=300m MFG=GERMANIUM-TYPE)
.MODEL AC128 PNP(IS=5u ISC=1u ISE=200n IKF=3 ITF=1 NC=2 NE=1.5 BF=90 BR=5 RB=7 RC=0.2 RE=0.1 vaf=40 var=40 CJC=250p CJE=80p TR=5u TF=1u FC=0.5 eg=0.72 VJC=0.4 VJE=0.4 VTF=4 MJC=0.333 MJE=0.333 XTB=1.5 XTF=6 XTI=3 Vceo=16 Icrating=1 MFG=GERMANIUM-TYPE)
.MODEL 2N242 PNP (IS=524N NF=1 BF=156 VAF=106 IKF=3 ISE=330N NE=2 BR=4 NR=1 VAR=40 IKR=4.5 RE=.190 RB=.763 RC=76.3M XTB=1.5 CJE=1.07N CJC=315P TF=1.5U TR=3u Vceo=35 Icrating=5 MFG=Germanium-type)
.MODEL 2Nxxxx PNP (IS=1.25N NF=1 BF=78 VAF=90 IKF=60M ISE=4.57N NE=2 BR=4 NR=1 VAR=14 IKR=90M RE=2.63 RB=10.5 RC=1.05 XTB=1.5 CJE=27.9P CJC=8.22P TF=437P TR=17N Vceo=25 Icrating=100m MFG=Germanium-type)
.model 2N344 PNP(Is=100p bf=22 Vaf=15 Cje=5p Cjc=2.5p Tf=3n Eg=.67 Rb=100 Re=10 MFG=GERMANIUM-TYPE)
.MODEL ECG101 NPN (IS=1.51N NF=1 BF=52 VAF=80.5 IKF=0.18 ISE=16.8N NE=2 BR=4 NR=1 VAR=80 IKR=0.27 RE=0.172 RB=0.687 RC=68.7M XTB=1.5 CJE=38.2P VJE=1.1 MJE=0.5 CJC=12.3P VJC=0.3 MJC=0.3 TF=31.8N TR=22.1U Vceo=20 ICrating=300m MFG=GERMANIUM-TYPE)
.MODEL ECG103 NPN (IS=1.25N NF=1 BF=117 VAF=72 IKF=0.15 ISE=6.22N NE=2 BR=4 NR=1 VAR=80 IKR=0.225 RE=0.206 RB=0.824 RC=82.4M XTB=1.5 CJE=33P VJE=1.1 MJE=0.5 CJC=10.7P VJC=0.3 MJC=0.3 TF=79.5N TR=55.2U Vceo=16 ICrating=250m MFG=GERMANIUM-TYPE)
.MODEL ECG103A NPN (IS=2.51N NF=1 BF=136 VAF=102 IKF=0.3 ISE=10.7N NE=2 BR=4 NR=1 VAR=40 IKR=0.45 RE=0.103 RB=0.412 RC=41.2M XTB=1.5 CJE=58.7P VJE=1.1 MJE=0.5 CJC=18.9P VJC=0.3 MJC=0.3 TF=63.6N TR=44.2U Vceo=32 ICrating=500m MFG=GERMANIUM-TYPE)
.MODEL AC151 pnp(IS=10u ISC=5u ISE=1u IKF=400m ITF=200m NC=2 NE=2 BF=110 BR=5 RB=75 rbm=5 irb=0.25m RC=0.5 RE=0.5 vaf=20 var=20 CJC=75p CJE=30p TR=3u TF=100n FC=0.5 eg=0.72 VJC=0.4 VJE=0.4 VTF=4 MJC=0.4 MJE=0.4 XTB=1.5 XTF=6 XTI=3 Vceo=24 Icrating=200m MFG=GERMANIUM-TYPE)
.MODEL AG128 PNP (AF=1 BF=85 BR=20 CJC=3.75P CJE=6P EG=0.67 FC=0.75 IKF=9.981M IKR=1.248M IRB=5U IS=120.8N ISC=120.8N ISE=0.435N ITF=9.983M KF=5F MJC=0.33 MJE=0.4 NC=1.2 NE=1.2 NF=1 NR=1 PTF=1 RB=173.312 RBM=43.328 RC=60 RE=20 TF=0.15U TR=2.865U VAF=102.207 VAR=20 VJC=0.6 VJE=0.4 VJS=0.7 VTF=2 XCJC=0.65 XTB=1 XTF=9.996 XTI=4 mfg=GERMANIUM)

.model D310 d(IS=2.5u N=1.437 RS=0.07 m=0.314 Vj=1.65 Cjo=14pF IBV=5u BV=20 TT=130n EG=0.67 XTI=3 Iave=500m Vpk=20 mfg=USSR type=germanium)
.model D311A d(IS=8u N=1.483 RS=1.85 m=0.22 Vj=0.1 Cjo=3.5pF IBV=1.00E-04 BV=30 TT=20n EG=0.67 XTI=3 Iave=80m Vpk=30 mfg=USSR type=germanium)
.model D18 d(IS=4u N=2.15 RS=17 m=0.124 Vj=0.1 Cjo=0.67pF IBV=2u BV=20 TT=5n EG=0.67 XTI=3 Iave=16m Vpk=20 mfg=USSR type=germanium)


.model mp39B pnp bf=140 br=3 eg=0.72 cje=30p cjc=90p tf=0.2u tr=1.u is=3u ikf=50m vaf=15 mje=0.5 mjc=0.5 rb=150 rbm=50 irb=0.1m ise=.3u ne=1.28 isc=0.6u nc=1.28 mfg=GERMANIUM_USSR
.model mp41 pnp bf=140 br=4 eg=0.72 cje=30p cjc=90p tf=0.1u tr=1.u is=3u ikf=50m vaf=15 mje=0.5 mjc=0.5 rb=150 rbm=50 irb=0.1m ise=.3u ne=1.28 isc=0.6u nc=1.28 mfg=GERMANIUM_USSR
.model mp37 npn bf=140 br=4 eg=0.72 cje=30p cjc=90p tf=0.1u tr=1.u is=3u ikf=50m vaf=15 mje=0.5 mjc=0.5 rb=150 rbm=50 irb=0.1m ise=.3u ne=1.28 isc=.6u nc=1.28 mfg=GERMANIUM_USSR
.model mp35 npn bf=140 br=4 eg=0.72 cje=50p cjc=90p tf=0.2u tr=2.u is=3u ikf=50m vaf=15 mje=0.5 mjc=0.5 rb=150 rbm=50 irb=0.1m ise=0.3u ne=1.28 isc=0.6u nc=1.28 mfg=GERMANIUM_USSR
.model mp25a pnp bf=140 br=3 eg=0.72 cje=30p cjc=90p tf=0.4u tr=4u is=3u ikf=40m vaf=30 mje=0.5 mjc=0.5 rb=120 rbm=40 irb=0.1m ise=.3u ne=1.28 isc=.6u nc=1.28 mfg=GERMANIUM_USSR
.model mp26a ako: mp25a pnp mfg=GERMANIUM_USSR

.model P416B pnp bf=800 br=.3 eg=0.72 cje=20p cjc=15p tf=1n tr=.4u xcjc=0.5 is=100n ikf=45m vaf=30 mje=0.5 mjc=0.5 rc=20 rb=80 rbm=10 irb=1m ise=25n ne=1.5 isc=.7u nc=1.4 mfg=GERMANIUM_USSR
.model GT308B pnp bf=800 br=.3 eg=0.72 cje=20p cjc=15p tf=1n tr=.4u xcjc=0.4 is=100n ikf=45m vaf=30 mje=0.5 mjc=0.5 rc=20 rb=80 rbm=10 irb=1m ise=25n ne=1.5 isc=.7u nc=1.4 mfg=GERMANIUM_USSR
.model GT322A pnp bf=100 br=.3 eg=0.72 cje=10p cjc=4p tf=1n tr=.4u xcjc=0.3 is=50n ikf=20m vaf=30 mje=0.5 mjc=0.5 rc=10 rb=40 ise=10n ne=1.5 isc=.5u nc=1.4 mfg=GERMANIUM_USSR

Part Number: TS3A4751

Tool/software: TINA-TI or Spice Models

Hi

We are using TS3A4751PWR in my design and would like to do the spice simulation. Can you share if Tina or Pspice or LTSPICE or any other equvalent models available?

Best Regards,

Sivakumar

Part Number: TLV711

Tool/software: WEBENCH® Design Tools

Using the model for TLV7111225, TINA gives an Invalid Device error.  A second error says that the circuit cannot be opened.  Using the same model with LTSpice gives a "Too Few Nodes" error.  I would prefer to use this model with LTSpice, but I cannot use it in either place.  Please help!  Thank you.  Screenshots of errors are attached.

Part Number: PMP20873

Tool/software: Code Composer Studio

Hi,

May I have the full source code to program the PMP20873 and step down the output voltage from 390V to 58V for TAS5634? 

And about the GCI inductor in the design, may I know where can I purchase it?

Thanks!

Sincerely,

Kwan 

Part Number: TIDA-00210

Tool/software: Code Composer Studio

I have Launchpad F28069M board.

For years, i have been evaluating closed loop stepper driver kits of TI.

I am making prototype of TIDA-00210 board 2 sets.

I want to use reference software to test the module and algorithm development on the Launcpad F28069M.

Where is the reference software code  ? I coudn't find it.

Can I use same code of C2000 piccolo reference code for closed loop stepper kit ? (  DRV8412 EVM - I have this evm )

Thanks.

Dear all,

I like the LME49600 for its low distortion and simple use as a high current driver in various applications and easy thermal management due to DPAK package.

I want to use it in a new role now, where I havent used it before: as a common buffer to tie the midpoint of a 36V supply to ground regardless of load imbalances.

Please refer to the figure below. I have used the spice LIB from the TI page of the LME49600 and BUF634A respectively. On the left is a usual output buffer circuit that I have used already and which simulates with no problems. The circuit on the right is a minimal model of the common buffer. It cannot simulate or (if forced) it diverges to one rail or starts at a huge input/output difference of 250 Megavolt (which should be clamped by internal diodes). If I plug the BUF634A model into the same circuit, it simulates without issue keeping the COM at close to GND.

So are the BUF634A and LME49600 indeed  functionally different ?? I always thought of them as roughly the same in a different package.

If they are indeed similar: Can you please point out how to "fix" the spice model of the LME49600 ?

I feel the BUF would be a little too shaky for the expected current loads due to bad heat dissipation.

Part Number: TPS709

Tool/software: WEBENCH® Design Tools

Hi,

I simulated the temperature dissipation of TPS709 on webench but the RTJA value is complete different from datasheet.

I have an  TPS70933DBVR  with Vin= 14V   and Vout= 3.30V 40mA  @Tamb=30°C  --> the power dissipation is P=(14-3,3)*40mA=428mW

If I use the datasheet, the  RTJA  is 73.3°C/W   but if I use webench it appears  RTJA=212,1°C/W  ,  WHY ???

Part Number: CC1352R

Tool/software: WEBENCH® Design Tools

Hello Team,

Weare planning to use 2 SPIs in CC1352R and following are the pins used,

SPI 1 (Flash) -    DIO 8 MISO

DIO 9 MOSI

DIO 10 CLK

DIO 20 CS

SPI 2   -     DIO 26 MISO

DIO 25 MOSI

DIO 24 CLK

DIO 3 CS

Can we use the above-mentioned pins for two SPIs?

Regards,

Sandhya

Tool/software: WEBENCH® Design Tools

I have used Webench for a number of designs, but one thing that always frustrated me was that there is no support to export to KiCad and the Eagle exports caused KiCad to crash (see https://bugs.launchpad.net/kicad/+bug/1830564), apparently due to the Eagle files being broken. It would be nice if it were possible to export directly to KiCad. KiCad's file formats are well documented and are text-based. Fortunately, it looks like this has caused KiCad to improve their handling of broken Eagle files (thanks to the bug I reported there), but I find it's always better to not have to translate.

Part Number: ISO224EVM

Tool/software: WEBENCH® Design Tools

Hello,

I am designing isolated AC voltage sensing following ISO224EVM, In datasheet it is mentioned that VIN of ISO224 can not be more than 12 V The differential output with a full-scale voltage of 4 V,so VOUT (P-P) for the ISO224  is 4 V and VDD2 of ISO224 is 5volts, VOUT (P-P) required from the TLV6001 is 3 V(the voltage output swing can go up to 30 mV close to both the rails). TLV6001 supply is 3.3 V with level shifting 1.65 V.

The op amp must have a gain of 0.75, calculated as Opamp Gain = 3/4 = 0.75 V/V. so how can i set gain of 0.75 ? If i set unity gain than output from TLV6001 is 4 V and it is not in range of 3.3. Above analysis is for max: input voltage from resistive divider. If i set resistive divider for 120 AC system for max: voltage sensing   and my AC output voltage is  is not more than 60  V  so VOUT(P-P) is 2 V then gain of TLV6001 is 3/2. please suggest me good solution . and in data sheet AC voltage range is from 50 V to 750 V . i am using low power module  just for experimental verification 30 V AC can i use ISO224 for 30 V AC sensing   

Tool/software: TINA-TI or Spice Models

Hi Team,

Do you have ferrite bead model for TINA? If not, please tell me how to realize the modeling?

Thanks,

Uchihara

Part Number: TMS320F28335

Tool/software: WEBENCH® Design Tools

When I debug TMS320F28335 I can used Jtag for porgraming ,But when the product is MP, we want to use the CAN for update the program. So , which program tool should I used for update the program?

Part Number: TIDA-010015

Hi,

  Good day!!!

  According to your calculation, the resonant capacitance=94nF. But can I know how C2(47nF)  and C3(47nF) can be taken as parallel connection. Because C2 and C3 have a common node and the other end of C3 is grounded while the other end of C2 is connected to 390V_DC.

  Can you please explain the resonant capacitance (Cr) calculation? 

  Thank you!!!

Part Number: LMC662

Tool/software: WEBENCH® Design Tools

Hi, I have drawn up a circuit to include LMC662A which was the closest I could find to LMC662 in TINA-9. But there are no specifications included with it, so for instance, I could according to the simulator, input a 1000V into it and it would still function normally. I have tried inputting the SPICE model for LMC662 from TI Webench Spice Models by downloading and unzipping with RAR Zip Extractor Pro, but this gives me the script shown below which doesn't give any data about the component when you open it with NotePad. Is this suitable for importing into my library? If not, please tell me how to get the one I need.

Script :-

Texas Instruments model manifest: July 29, 2019
All models are property of Texas Instruments and subject to terms of use.

Folder: TI_Models_201907290924_01295

TI Literature Number -> filename.zip "description"

SNOM170 -> LMC662_PSpice Model_SNOM170.zip "LMC662 PSPICE Model"

Regards,

Alan Morris

Part Number: LMV7239

Tool/software: WEBENCH® Design Tools

Hi,

(Please visit the site to view this file)

TLV3501 was suggested by TI and it is very good. However the footprint is different.

Could you please possibly provide me the LMV7239 model in the .TSC simulation file attached above or another similar part suggestion with footprint of SOT-23-5? I look for LMV7239  in every single folder in my TINA but can't find it.

Thanks,

Hongmei

Part Number: UCC21750

Tool/software: WEBENCH® Design Tools

Hi,

1. I was suggested that a buffer like SN74LVC541APWR is better to use between DSP (TMS320F28379D) and UCC21750 to protect DSP.

UCC21750 datasheet P30: A fault will be reported to the input side to DSP/MCU, which means the signals can be directly go to DSP?

2. Also a buffer like SN74LVC541APWR was suggested to better use between ADC signals and ADC pins of TMS320F28379D. I've never used before.

Does these MCUs like TMS320F28379D need a buffer for it? When do I need to consider this to protect the MCUs?

Thanks,

Hongmei

Part Number: TIDA-00620

I am interested in using an architecture similar to the TIDA-00620 to drive a 12VDC brush motor at 100A in a unidirectional application. I am concerned that the DRV8701 does not have enough output current to drive several high current mosfets in parallel. My application is not 4 quadrant, we only need to drive the motor in one direction. Braking would be nice but it is not necessary. Can you recommend the changes required to make the TIDA-00620 design operate up to 100A? Thank you. 

Part Number: LM5117

Tool/software: WEBENCH® Design Tools

I'm currently trying to design using LM5117PMHX/NOPB and whenever I try and create a new design or modify an existing one using this part I get an error saying the design cannot be created using my given inputs and / or the current part. I'm fairly certain it is a bug as I have tried using the same design constraints that I've used before with this part, previously not giving an error, but now giving an error.

Part Number: TIDA-010024

I received recently the CC1312R1 LauchPads, revision D, but was happily surprised to find revision E silicon on the kit.

I am attempting to start development of a subgiga mesh network using TIDA-010024 as a starting point.

Has this been tested with the revision E silicon?

I can load it into the LaunchPad, and then in the serial terminal "TI Sensor" is displayed, sometimes LEDs turn on/off, but can't track what is going on.

I have looked over the included PDF file carefully, I am not sure what is expected when the power is applied.

I have tested using the pre-built firmware, and firmware built in CCS 9.

Since support, such as resource explorer, seems to have stopped working in CCS8 I have upgraded to CCS9.

I have also installed SimpleLink CC13x2 26x2 SDK 2.40.0.81 and encounter no build errors.

Please advise a little on what I should expect running the reference design.

I have been attempting by programming one CC1312R1 LaunchPad with the debug_poll, and the other with the debug_root_poll configurations.

I have enabled the serial output in the Application/defines/sensor.opts file.

I also have the LCD BoostPack (BOOSTXL-SHARP128) available which I have also tried, but same output as on serial terminal.

I currently have three revision E silicon LaunchPads with LCD displays available for testing.

Any suggestions are appreciated, thank you!