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TPS561201: operating of low current consumption in Vout=3.3V

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Part Number: TPS561201

Dear all,

Our customer would like to ask a question about DCDC.

They would like to check if it can be used even when using with low current consumption

For example, is it possible to hole Vout=3.3V when the current consumption is less than 1mA (Extremely no load)?

(The input voltage is 11V)

Best Regards,

Y.Ottey


IWR6843: RS232 connectivity issue

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Part Number: IWR6843

Hello!

I have a trouble to activate our IWR6843 test module which is composed of IWR6843 boost B'd and RF module.

Basically, the circuit was reviewed and confirmed by TI. The only different point compared with TI's reference circuit is warmRst pull-up resistor is not connected in our module. [ SOP0, 1 are closed, SOP2 is open for a DCA B'd connection]

Is this root cause? The issue is a RS232 connectivity in mmwaveStudio.

And there is no oscillation of a 40MHz crystal on module board.

Each of 1v4_synth and vout_PA is 1.37V and 1.0V. And the 1v4_APLL and VBGAP output are 0V.

This case is very similar with "IWR1642: no crystal oscillation" that I have seen on E2E forum.

However, I couldn't notice the solution to resolve this issue.

Please let me know how to resolve it.

I'm looking forward to hearing from you.


Thank you!


Regards,

ADC128D818: Interrupt Mask Register

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Part Number: ADC128D818

On section 8.6.4 of the datasheet for the ADC128D818, what does this mean?

 

Default Value [7:0] = 0000_0000 binary

 

Does this mean that upon default, NONE of the interrupts of ANY of the channels will propagate to the /INT pin?

 Or is it the opposite?

-Jason 

Current limit switch for screen power switching

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I want to choose a low-limit current-limit switch for screen power switching; see a TPS2596 on the Internet, I don't know if this can be used for this function, and this material has not been mass-produced.

We use it to control the power control of the LCD screen. The operating current of the screen is about 1-1.5A. It needs overcurrent protection and overcurrent detection.
Not necessarily the rules of the car, the rules of work can also be. The temperature range should be above -40-125.

TM4C1230E6PM: Programming problem

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Part Number: TM4C1230E6PM

Hi Sir

we use TM4C1230E6PM meet above questions,need you help check it and give some suggestions,tks!

The chip encountered a programming problem, that is, how to jump from the startup code to the address of the application layer program 2000, the jump code is written in C language, without assembly. How to write jump instructions written in C language? We tried to use the common C language program jump instruction in Keil C, and the simulation will have a hardware error interrupt.

TPS659037: Power down sequence control using POWERHOLD pin

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Part Number: TPS659037

Hi,

(I asked the same question to Processor forum, but they recommended to ask here.)

My customer is using TPS6590379 with Sitara AM5728.
He wants to trigger power down sequence by POWERHOLD pin.
- POWERHOLD pin is connected to AM5728 GPIO.
- BOOT1 pin is pull-down.

Customer wants to know which register configurations are needed on PMIC side.
According to datasheet(SLIS165G.pdf) section 5.4.2.2 OFF Requests, below two settings are needed.
- DEV_ON bit in DEV_CTRL Register is cleared to 0.
- Bit 5 in PRIMARY_SECONDARY_PAD2 Register is set to 1 to select secondary function (POWERHOLD).

Correct?

Thanks and regards,
Koichiro Tashiro

CCS/CC3200SDK: ti has Audio decoding library?

DS90UB954-Q1: The distinction about SER_ID and SER_ALIAS_ID

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Part Number: DS90UB954-Q1

Hi, 

   I'm confused about the  SER_ALIAS_ID. Would you please clarify the distinction about SER_ID and SER_ALIAS_ID? thanks very much.


CCS/AWR1642BOOST: AWR1642Boost ES1.0 never running

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Part Number: AWR1642BOOST

Tool/software: Code Composer Studio

I ordered AWR1642BOOST online a few months ago. Trying to run Vital Sign Lab in CCS and never get it running. Its ES1.0 version. I tried the training video many times.

Can you help to list all the software with right versions and link? (CCS, MMWave SDK, MATLAB GUI)

TRS232E: TRS232 can replace the MAX202

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Part Number: TRS232E

Hi Tiers

i use the max202 in my project, but it shouldn't be the optimal solution,

Can the TRS232/TRS232E replace the MAX202?

Is there any other P/N recommended,   need Pin to Pin

Compiler/AM3359: Where to get the latest cross compile toolchain for processor AM3359

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Part Number: AM3359

Tool/software: TI C/C++ Compiler

Dear All,

   I am porting the older kernel which is running on my development machine(DevKit8600), The toolchain came along with the BSP for this Devkit, supports the gcc version "arm-none-linux-gnueabi-gcc (Sourcery G++ Lite 2009q1-203) 4.3.3" and it is good to build the kernel version 3.1.0. But when I am using the latest kernel (5.2.11) the minimum compiler (gcc) version supported is 4.6. I had tried out different cross-compiler from different sources like Linaro, CodeSourcy and Free Electrons but nothing seems like working. could you please point me the like where I can download the proper latest toolchain that fits AM3359 processor.

When I am using the older toolchain and tried building the latest kernel I am getting error "./include/linux/compiler-gcc.h:14:3: error: #error Sorry, your compiler is too old - please upgrade it."

Please suggest any pointers.

Thanks in Advance.

Regards,
Srini.

LMH6644: What does Vcm=Vo=V+/2 mean? andRL=2kohm to V+/2?

ISO1042: ISO1042 replace the TJF1052

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Part Number: ISO1042

I used the TJF1052i in my servo project,

I found the ISO1042, ISO1050 is Pin to Pin  TJF1052,

can the ISO1042 or ISO1050 replace the TJF1052,

Are there any other cost-effective solutions to recommend? thx

OPT3001: UL VDE certificate

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Part Number: OPT3001

Dear all:

       Can you provide OPT3001DNPR UL VDE certificate ?My customer need it .

 

Thank you!

TPS51120: Limiting the delay of MOSFETs used in the TPS51120.

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Part Number: TPS51120

Maybe I made the wrong choice of development tools / software, change it and ask again.

(I have the same question here. -> e2e.ti.com/.../835739)

===================

I am considering a MOSFET controlled by TPS51120.
Are there any limits on MOSFET delay parameters (rise time (tr), turn-on delay time (td (on)), fall time (tf), turn-off delay time (td (off))?
I am thinking of selecting a FET using the following parameters: Can I use (1) and (2) below?

(1) TOSHIBA TPN2R903PL (tr = 4.7ns, td (on) = 12ns, tf = 8.2ns, td (off) = 30ns)
(2) TOSHIBA TPCA8045-H (tr = 4.6ns, td (on) = 15ns, tf = 11ns, td (off) = 67ns)


TPS929120-Q1: Can this device use 16 pieces?

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Part Number: TPS929120-Q1

Hello team,

I have questions about broadcast mode on TPS929120.

At page 36 table8 of the datasheet, "0h is reserved for broadcast only" is written.

However, according to center of P36, "The address 0h to Fh can be used as slave address for up to 16 pieces of TPS929120-Q1 in same FlexWire bus." is written.

I guess these 2 scripts are conflicted because the addresses I can use is just 16 although 0h can't be used during single-device mode.

Can I really use 16 pieces at the same time as slave device?

Another question is that what can I do by Broadcast mode?

I thought Broadcast mode allow to shut down all of current at the same time or all of duty can be set same binary. Is my understanding correct?

Best regards,

Koyo 

AM3356: About DDR Signal matching

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Part Number: AM3356

HI,

Our customer is verifying DDR3 with AM3356BZCZ60.
When SI analysis was performed before, all the signal lines were the same, so the same adjustment was done.
However, in order to use low-power mode with AM335x, it is necessary to re-examine the fact that it is necessary to pull-down the CKE signal (e2e.ti.com/.../638781).

Q1.
Only the CKE signal is different from other signals. How do they perform signal validation?
(Can they adjust the amplitude and delay from the CKE waveform?)

Q2.
Is it necessary to make the CKE pattern the same length as other control signals?

Best Regards,

Kouji Nishigata

UCC21520EVM-286: UCC21520EVM-286

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Part Number: UCC21520EVM-286

Hi,

I am trying to use UCC21520EVM-286 paralleling the channels, supplying VDDA and VDDB through a single power supply with a negative bias and parallel outputs VOUTA, VOUTB to drive two IGBT transistors connected as a bi-directional AC switch.
When I connect J-INA pin 2 and J-INB pin 2 together, the output VOUTA,VOUTB switches off.
I tried to find out what I am doing wrong in paralleling the channels without any success. Please help.

TMS570LS3137: TMS570LS3137: How to ensure two MCUs work synchronously.

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Part Number: TMS570LS3137

Hi,

I am recently in trouble with a question. There are two MCUs in my board. I want to ensure these two MCUs work synchoronously, for example, MCU1 and MCU2 receive the same 4-byte data and handle it, how to operate some module to make sure that when MUC1 processes the 1st byte of the data and  MCU2 does the same thing at the same time, that means MCU1 and MCU2 not only do the same thing but also do the thing synchronously. How to realize the 2 MCUs process the same data  simultaneously?

Thank you very much. Hope your reply.

LM5180: Low vin maximum power

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Part Number: LM5180

In vin 4.5V condition can support output 5V/1A ?

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