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WEBENCH® Tools/LM5116: Simulation, hardware & system design tools forum
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TINA/Spice: PCB Layout design of audio pre amplifier using OPA37 and OPA2111
Tool/software:TINA-TI or Spice Models
I have designed the multistage amplifier with OPA37GP and dual amplifier band pass filter using OPA2111KP. Kindly suggest me, what kind of PCB (single layer or double layer) would be suitable for this type of preamplifer.
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TINA/Spice/TLV171: TIDA-01371 similation issue
Part Number:TLV171
Tool/software:TINA-TI or Spice Models
Hi,
I have downloaded the TINA file for TIDA-01371 reference design from here:
Simulation results are the same as described in tiduci3a.pdf . However, when I change the TLV171 supply voltage (VCC) from 12V downto 5V, then simulation results are very strange to me. What should I change in the reference design in order to be able to operate the circuit with 5V supply? For some reasons this would be much more convenient for me.
Best Regards,
Mariusz Hajduk
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TIDA-01064: Other Solid state relay solution suggestion?
Part Number:TIDA-01064
Hi Team,
Would you please suggest solution or reference design on the following solid state relay specification?
1. AC/DC SSR
2. DC/DC SSR
Spec:
Also, what are the difference between AC/DC, DC/DC, AC/AC, DC/AC SSR?
Best regards,
Andy Chu
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TIDA-00792: incorrect measurements cell voltages and temperature
Part Number:TIDA-00792
Hello,
I have encountered a problem when testing a BMS for a 12s2p battery pack, largely based on the TIDA-00792 design.
While charging the pack suddenly shut off. When connecting the EV2300 to it the reason seemed to be because of the over-temperature and under-voltage protection.
The BMS and parallel cells were disconnected and the cells and temperature sensors were checked. The cells were all around 3.9 V and did not feel warm to the touch.
The 103AT Temperature sensors were around 11kOhm. Assuming the BMS was defective, it was replaced by another one, which also gave low voltage and overtemperature errors.
One again the cell voltage and temperature sensors were checked. All the cells were still around 3.9 V. However, when connecting the EV2300 to it the next week, the measurements were correct.
The only files and states I have gotten of the faulty state is a screencapture of the bqStudio program, see below.
I was thinking the bq76940 was defective because the individual cell voltages were incorrect but the ext avg. cell voltage was closer to the actual measured value of the cells.
I was wondering what could cause this problem and how it could be prevented another time.
With kind regards.
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WEBENCH® Tools: How to create multiple output smps using WEBENCH POWER DESIGNER
Tool/software: WEBENCH® Design Tools
Hello
I want to try out the multiple output smps design in webench power design, but there is no option for add the output .
can ou help me with this.
looking forward to this query.
regards
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TINA/Spice/LM3017: Error on creating new Macro : "Undefined parameter or possible use of function before definition: SS."
Part Number:LM3017
Tool/software:TINA-TI or Spice Models
Hi Team,
Good day. My customer encountered an error while importing the PSPICE model of LM3017. Unfortunately after going through the creating new Macro this error appeared "Undefined parameter or possible use of function before definition: SS.".
How to solve this error? Looking forward for your response.
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TINA/Spice/TPS62130: Question about AGND and ETPAD connections and effects in the TINA-TI model??
Part Number:TPS62130
Tool/software:TINA-TI or Spice Models
Hi there TI folks;
I'm doing some simulations with a few TI SMPS parts, and I'm interested in their behaviour when connections are bad, or no-connect, or mis-connected.
I tried to run the 62130 model with AGND left 'open', and the simulator failed with some kind of convergence failure... so, I connected the AGND with a 1G Ohm resistor, to simulate a 'bad' AGND, and even isolated the ETPAD pin the same way, but the simulation showed the same behaviour as with AGND connected, and 'probing' those nodes showed a hard GND/0 V on the simulation output.
Thus, the question remains: are these 'pins' actually simulated, or just shown on the schematic for fun??
Best regards,
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TIDA-00274: Max current limit
Part Number:TIDA-00274
The Feature list for the TIDA-00274 BLDC motor reference design lists the max current as 1.9Apk/1.25Arms, and the test data shows a test at this limit. However, the reference design uses the DRV8313 EVM hardware which states it can handle 2.5A pk.
What limits the max current in the TIDA-00274 design? Is this a limit set by the control algorithm?
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PMP21479: Peak load spec
Part Number:PMP21479
If we don't need PD solution, only a simple 65W 19V output adaptor, can it handle 200% peak load for 2mS?
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WEBENCH® Tools/LM5001: Webench won't allow simulation with light load
Part Number:LM5001
Tool/software: WEBENCH® Design Tools
I designed a boost converter using an LM5001 which takes 12V and makes 48V at 0.12A. It simulated fine. When I tried to examine stability at lighter loads the simulation wouldn't let me go beyond one half the design load and failed to generate a result even at that current. I need to know examine stability at low load currents since the design must operate with any load down to a minimum of about 1mA. I may have to add a dummy load to insure stability but I need the simulation to determine how much load I need and how to adjust the compensation components to minimize the dummy load.
The equivalent simulation platform from Linear Technology does this easily for an LT8362 design, I can't find a way to do it on the TI webench platform.
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TIDA-00120: TIDA-00120
Part Number:TIDA-00120
Dear TI team ,
I am using TIDA-00120 reference design for the MPPT Solar charger.
when i am trying to open design file .
Some track are missing .
Can you help to share the complete design in Altium PCB design file
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TIDA-00663: TDC7200
Part Number:TIDA-00663
Can anyone explain to me how the TDC7200 communicates with the microcontroller.
My second question: what is the role of the TPS22967 .And what is the purpose of laser_on signal that it generates.
I understood the general principle of this reference design, but still confused about these two points.
Thank you in advance.
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TINA/Spice: Can anyone share with me a TINA-TI circuit that has LM3880, TPS56339, and TPS2420 components?
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TINA/Spice/TPS92518EVM-878: TINA_reference_design
Part Number:TPS92518EVM-878
Tool/software:TINA-TI or Spice Models
While trying to validate the design equations & other datasheet examples to verify the accuracy & understand the operation using the TI reference model for TPS92518. Unable to replicate the performance.
Considering Vin= 57V, Vout= 44V, Iout= 1.6A, ILP-P= 0.3A, eff= 95%, fSW= 250KHz, design tool gives L= 109uH, Rsense =145mOhm, tOFF= 749.7ns, but when I use TPS92518 Transient model to verify this by putting LED_TOFF_DAC[7:0]= 70, & LED_PKTH_DA[7:0], i.e., Viadj on the model to be 255. with Rsense =145mOhm & L= 110uH, I am unable to replicate the performance.
Have a few questions regarding the TPS92518 Transient model:
1. How are you considering the Rload in the design, how are you calculating it?
2. the 470pF C_OFF capacitor, it is not a part of IC design, how has it been considered.
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[FAQ] PMP21479: What are the trade-offs between using Gallium Nitride (GaN) versus Silicon (Si) FETs in an active clamp flyback?
Part Number:PMP21479
What are the trade-offs between using Gallium Nitride (GaN) versus Silicon (Si) FETs in an active clamp flyback?
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[FAQ] PMP21479: What is the advantage of the active clamp flyback over a quasi-resonant (QR) flyback?
Part Number:PMP21479
What is the advantage of the active clamp flyback over a quasi-resonant (QR) flyback?
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[FAQ] PMP20946: Why is the LCC topology used as the isolated DC-DC stage of the PMP20946 design?
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[FAQ] PMP21842: What are the highlights should I look into this PMP21842 12V/500W LLC design?
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[FAQ] PMP21495: What are the highlights of PMP21495 6.6kW dual-active-bridge CLLLC design?
Part Number:PMP21495
What are the highlights should I look into this PMP21495 6.6kW dual-active-bridge CLLLC design? What are the benefits this design gets from UCC21530-Q1 and C2000 F280049C controllers?
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