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TIDA-00637: Request use of GFCI test and rest of part number and information

May 15, 2019, 3:25 am
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Part Number:TIDA-00637

Dears,

Please kindly help to share with below infromation

1. Part # and Vendor's name of CT on page 27 (Figure 22. system as tested)?

2. Part # and Vendor's name of J1772 CABLE(Figure 22. system as tested)? 

2. Question with  test result Pic on Page 32.

- Is Blue line  Final GFCI TEST SIGNAL and red line is measured on  MCU I/O pin?

- Is that correct that blue line is test result that measured on X6-1 connect pin?

- Is Red line is signal of GFCI Fault singal or GFCI+?

3. Use for GFCI TEST SIGNAL 

- Is GFCI TEST SIGNAL just for test to check on right activation physically on EVSE reference board? 

- Does it mean that MCU make 2Khz freq, and make activate coil on CT and op-amp amplify loopback signal from CT and MCU recongnize this signal?

 

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Tlk2711-sp functinnality

May 15, 2019, 4:31 am
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hi all,

I have a question about the functioning of the component tlk27-11sp, on the reception how can one know if the data which arrives from the transmitter are data injected throughTXD0 to TXD15 or prbs generator (10 bits)?

thanks

best regards

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TINA/Spice/SM74611: SM74611KTTR rectifier circuit transient simulation

May 15, 2019, 5:09 am
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Part Number:SM74611

Tool/software:TINA-TI or Spice Models

Hi,

I'm trying to simulate (transient) SM74611KTTR with 10uF capacitor connected to diode's cathode. I was expected DC voltage ripple at cathode. But, output voltage is sinusoidal (which follows input ). Any clue?

Circuit attached. Input voltage: 1V AC, 8Hz. DC offset voltage is 3V

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TIDA-070002: Reference Design

May 15, 2019, 9:58 am
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Part Number:TIDA-070002

Hello, 

I have some questions about the TIDA-070002 reference design:

1. why isolate the feedback loop, what advantage does this give?

2. would you agree that the over-current facility isn't strictly required which means that INA901 and LM139 could be removed from the design?

3. What functions are L1 and D11 performing?

4. why are there so many output capacitors after the secondary output from T1?

5. why are there so many input capacitors before T1?

thank you very much.

Kind Regards,

Rajan.

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TINA/Spice/DAC7311: DAC7311 : THD issue

May 15, 2019, 11:08 pm
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Part Number:DAC7311

Tool/software:TINA-TI or Spice Models

Hi Sir,

I tried running THD of DAC analysis(example:DAC7311 Parallel TINA-TI Reference Design), but THD performance is not good. What's wrong?

 

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PMP4745: Drive Current

May 16, 2019, 2:42 am
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Part Number:PMP4745

Hi E2E,

Our customer refer PMP4745  to design TPS23757.

But the MOS which customer use that had higher Qg lead to VGS can't pull low at the moment. (Please refer the waveform)
(Customer MOS's Qg=42nC, PMP4745 MOS's Qg=17nC)

We modify R12 to 43.2R  can fix this issue. (the Q1 Gate can pull low fast)

Could you let us know does have any risk with modify R12 to 43.2R?

Thanks!

Circuit:

Waveform: 

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TIDA-00792: In Gerber Files for TIDA-00792, Pick & Place File Missing. Can any one provide it?

May 16, 2019, 2:49 am
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Part Number:TIDA-00792

Dear All,

I started to make Pcb from TIDA-00792 Gerber files given over TI website. But am not getting "Pick and Place FIle from Gerber Data".

Is any body having Pick and Place file for the same ?

Rohit

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WEBENCH® Tools/LM22676: WEBENCH® Tools/LM22676:

May 16, 2019, 3:06 am
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Part Number:LM22676

Tool/software: WEBENCH® Design Tools

Created a design with the LM22676, but after simulation the circuit has gone. Also the PCB layout is for another chip, LM26xxx

is this a known problem?

Phil Sharrock

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TINA/Spice/TPS54360: TINA/Spice: TINA/Spice: TPD2E001 Pspice model convert to TINA-TI

May 16, 2019, 4:45 am
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Part Number:TPS54360

Tool/software:TINA-TI or Spice Models

Hello Sir,

I want to simulate TPS54360 Switcher IC using TINA Ti free software, But i didn't get Spice model to support  TINA Ti free software from TI site.

If any one have spice model to support in TINA Ti  free software Please provide.

Please help. . . .

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PMP11236: UCC28881

May 16, 2019, 5:21 am
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Part Number:PMP11236

Hi dear TI Experts,

I want to use PMP11236 reference design for my project. I need to connect one of both 220V AC or 24V DC in the same plug(only one). Thats why I choose this part(It is okay if you suggest another one). And, here is the problem: I want to use it for powering and Arduino board, relay board and 7-segment board. But the PMP11236 says, it is supply 20mA for 5V. Is the PMP11236's power supply okay for this kind of application?

Here is the board that I have designed so far;

Here, I am not using 24V output, only 5V output.

Best regards;

Osman

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TIDA-00366: Replacing the Bootstrap by Isolated DC/DC

May 16, 2019, 8:13 am
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Part Number:TIDA-00366

Hi,

I am trying to design a 15-20kW AFE motor drive, which consists of an active rectifier and an inverter. I may or may not use the bootstrap DC for the inverter part. But, when the bootstrap is used in the rectifier's gate driver, the modulation index range will be limited. Due to this limited Duty Cycle, for the rectifier part I have to replace it with the Isolated DC/DC converters. I need to use 15/15 DC/DC for the gate driver and 15/5 DC/DC for the ADC current sensing part. Do you have any suggestions from TI products, which is compatible in this application design and works good with the other parts? Also, I need to add three voltage sensors to the rectifier board for the PLL implementation. Do you have any suggestions for that part as well?

Thank you

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TIDA-01168: Details on Top Side Interface Material

May 16, 2019, 4:02 pm
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Part Number:TIDA-01168

Hi Team,

My customer would like to know more details on the interface material between the bus bar and the top side of the PCB on page 10 of TIDA-01168?

More specifically, is the bus bar in direct contact with the copper planes (board top side) or is there an interface material to fill in the air gaps (if any)?

I see that the materials and detailed description are included for the bottom side, but want to understand if it’s the same for the top side.

Thanks,
Mitchell

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WEBENCH® Tools/TLV62568: Load Transient Simulation Failed

May 16, 2019, 5:29 pm
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Part Number:TLV62568

Tool/software: WEBENCH® Design Tools

Hi,

Our customer is doing a load transient simulation for TLV62568 and he got an error message "Simulation Failed - Sim Type: Load Transient Sim ID: 1"

The parameters used in simulation are as follows:

Input voltage: 2.7V - 3.6V, Output voltage: 1.2V and, Max output current: 1A. 

Please advise. Thank you.

Regards,

Cedrick

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WEBENCH® Tools/LM25145: to support 19V to 12V/10A

May 17, 2019, 12:05 am
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Part Number:LM25145

Tool/software: WEBENCH® Design Tools

Hi Team,

We want to apply LM25145 for the spec, 19V to 12V/10A, but Alert Center showed the message below. 

We think LM25145 can do the design, could you please check if any problems from the model or tool? Thanks!

Best regards,

Sam Ting

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TIDA-00690: Battery Power

May 17, 2019, 1:17 am
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Part Number:TIDA-00690

I want to replace my PCB battery with a switch generator (AFIG-0010 from ZF electronics) + rectifier + super capacitor (for storage). My question is: how much power capacity and time can I get from a single switch pulsation?

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TIDA-00690: Where can I buy it? + Output voltage

May 17, 2019, 1:25 am
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TINA/Spice/CSD25304W1015: Unencrypted Spice Model for CSD25304W1015

May 17, 2019, 2:04 am
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Part Number:CSD25304W1015

Tool/software:TINA-TI or Spice Models

Is there an unencrypted Spice model for CSD25304W1015 ?  The datasheet looks so promising, but the rest of my circuit is modelled in SIMetrix, where I have created analog behavioural models

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TINA/Spice/LM5175-Q1: Search for LM5175 Spice simulation Model

May 17, 2019, 11:34 am
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Part Number:LM5175-Q1

Tool/software:TINA-TI or Spice Models

Hi， I now use LM5175 to design a super capacitor charging model, I want to do some circuit function evaluation by SIMetrix/Simplis simulation tool before detailed designing. But SIMetrix/Simplis without  LM5175 Spice Model, so can you provide the LM5175 Spice simulation Model. 

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WEBENCH® Tools/ADS1292R: Using the AFE without the respiration module

May 19, 2019, 11:51 am
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Part Number:ADS1292R

Tool/software: WEBENCH® Design Tools

Hello all,

I'm trying to use the ADS1292R for ECG purposes (I'm not interested in getting respiration measurements). I went to page 58 of the datasheet and I found schematic for the input signals, but it includes the respirartion inputs too (I attach a picture bellow). My question is: what should I do with the respiration inputs if I won't use them? Can I just use the same schematic and just ignore the respiration inputs, or should I make some changes?

Thank you in advance for your help!

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TIDA-00333: TIDA-00333

May 19, 2019, 12:31 pm
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Part Number:TIDA-00333

Hello!
I use same one shot autodirection control schematic in my device as in TIDA-00333. According to this method RS485 line reaches full -1.5 V (driver output on A and B lines) durind 0 transmission, but reaches only litle bit more than 200 mV (failsafe bias level) during 1 transmitssion instead of minimum 1.5 V (min driver output) according RS485 standart. Does it decrease robustness of such RS485 design on long distances compared to standart RS485 implementation with DE (driver enable) controled by PC or MCU during entire 8 bit transmissin?
Best regards!

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