Part Number:SN65LVPE504
Hi team,
The customer is asking junction temperature range, which is not shown at the datasheet. Could you provide the data to the customer? Thank you for your support.
Best regards,
Takeshi Sasaki
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SN65LVPE504: Junction temperature range
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Linux/TPS53681: TPS53681: No output voltage
Part Number:TPS53681
Tool/software: Linux
Hello, we are debuging the TPS53681, it's expected to control the A channel through the PMBus commands to output PWM1/PWM2/PWM3 and through three chip CSD95490Q5MC to get a 0.42V voltage, Now the IIC to read/write registers is all OK, and my configuration like so: the 0X00 register is set to 0X00, the 0X03 register is set to 0X00,the 0x04 register is set to 0x02,the 0x01 register is set to 0x80, the 0x02 register is set to 0x1B, the 0x24 register is set to 0x0029,the 0x2B register is set to 0x001B,the 0x21 register is set to 0x001D, other registers use their default values, but no PWM measured at the TPS53681output endpoint, So now I need to understand the operating flow how to output the expected PWM by the TPS53681 through sending PMBus commands, or whether there is a corresponding development DEMO code, hope to reply, thank you.
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CC3200-LAUNCHXL: Heating issue on the board
Part Number:CC3200-LAUNCHXL
We had ordered about 10 of the launchpads but to our surpirse 3 of them are already blown due to over heating. This had occurred mostly during the power up as we inserted the boards into the USB socket. So it was not the programming issue. We have used many other USB based boards in the past but had never seen such issue. We are sure that there is no ESD or over voltage issue here. Also there are multiple posts on the E2E regarding the parts blown due to over heating. Can someone give a more definitive answer?
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TL431: TL431 Reference Voltage vs Free Air Temperature
Part Number:TL431
Hi,
I refer to TL431 datasheet Page 14 Figure 1: Reference Voltage vs Free-Air Temperature under Item 7.14 Typical Characteristics.
This graph only shows general grade tolerance with Vref (max)=2550mV and Vref (min)=2440mV.
Do you have similiar Reference Voltage vs Free-Air Temperature graph for grade A (P/N: TL431AQDVZR) and grade B (P/N: TL431BQDVZR)?
Please kindly advise, thanks.
Best Regards,
Philip
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BQ27541: Setting update issue.
Part Number:BQ27541
Hi,
When use the EV2400 to read the Flash of the Gauge IC(BQ27541), and the software is" bq gas gauge evaluation software", we find that the package voltage of the battery from the "DataRAM" column can up to 4410mV (refer to the attatchment log file), but when we read the "DataFlash" column, the "Lifetime Max Pack Voltage" is 4397mV, Please help us to analyse why the max voltage 4410mV is not updated into Dataflash? TKS!
(Please visit the site to view this file)
(Please visit the site to view this file)
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DLPC3435: For DMD DLP2010, only controller DLPC3435 is used, but no driver is used. So what is used to power DMD?
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CD74HCT4067: Interchannel interference
Part Number:CD74HCT4067
74HCT4067M 5.1V powerd；When the input voltage on channel Ix is greater than 4.3V，Select other channels will read 500mV voltage（Increased with Ix input） on pin1（in fact other channels are float）；Is this phenomenon normal?How can I avoid this problem?
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UCC28180: Package Power Dissipation
Part Number:UCC28180
Hi All,
My customer ask me Pd ( Package Power Dissipation ) of UCC28180.
Because their customer required it for Application data for "China energy efficiency index".
Another Maker's PFC IC datasheet shows Power Dissipation at Maximum Ratings
If TI cannot answer Pd, they cannot use UCC28180.
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EMB1428Q: some questions of 1402EVM
Part Number:EMB1428Q
Hi，dear ti enginner:
I am debugging the active balance with 1402EVM. And i use my own MCU,not TMS570.
I refer to the TMS570 code to write my own code.And I used the BQ76PL455 ‘ GPIO to communicate with EMB1428 not real spi.
There are some questions,I hope to get your help.:
1.the D4 light is light up and turn off soon,and then repeats the process always. Is this the correct phenomenon by use TMS570 DEMO software?
I find When GPIO5 is set to low voltage ，the D4 will light up，when the GPIO5 is set to high voltage ，the D4 will turn off. it is opposite of the schematic named TIDA-00817?
2.The code in function void EMB_SetCS(int nDev_ID, int CS)
nRead = ReadReg(nDev_ID, 120, &bTemp, 2, 0); // Read GPIO dir register
No.120 register is 1 blen，not 2 blen.
Does this affect the operation of the code?
3.I still can't implement the active balance function. Is there any reference material that can help me solve this problem?
Thanks for you help.
regards.
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TPS62290: The question about the feedback divider network Resistance.
Part Number:TPS62290
Hello,
For about the feedback divider network Resistance. The datasheet of TPS62290 promote R1=360K and R2=180K, But Our customer think that a smaller resistance is more suitable and more Stable and reliable. like under 100kΩ. Because it means stronger driving current for the FB side. Do you think it's necessary or we can still use the recommend Resistance? would you please give your advice for us? thanks.
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RTOS/OMAPL138B-EP: What's the correct PDK building command for C6748?
Part Number:OMAPL138B-EP
Tool/software: TI-RTOS
hi .
I'm using the 5.x RTOS packet for building C6748 (AKA OMAP138).
I have the attached error marked with Yellow color.
I have some questions:
Q1. What's the correct build command for C6748 PDK?
Q2. What's the correct build command for Building SBL & Flash Writer?
BR Rio
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CCS / TMS570LS0714： EB Tool configuration DIO module
Part Number:TMS570LS0714
Tool/software: Code Composer Studio
I have a problem configuring DIO in EB
Ex. :
LINRX and LINTX are configured in LINPORT, but there is only one DioPortLin in EB, but the corresponding relationship between them is unknown. DioChannelID is not sure how to fill in.
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CC1310: Output Power of CC1310 in mW
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LM3630A: Question for datasheet Spec
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TMDXEVM8168: Problem in audio capturing and streaming in dm8168
Part Number:TMDXEVM8168
Hi,
I am trying to capture and stream audio data on DM8168. While searching i got to know that we can capture and stream audio data using gstreamer command so can anyone provide the gstreamer pipeline command to capture analogue and stream audio data on a port.
Thanks,
Brijesh Gupta
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CC2642R: Where can I find the related test projects of SCE in the AN "swra578"?
Part Number:CC2642R
Hi,
In the swra58, it decribe 6 test Scenarios and give out the power consumption data. I want to verify it. please advise where can I find these related test projects . thanks.
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CC2541: simpleBLEperipheral
Part Number:CC2541
Hi,
This is sumanth. I am a student. I am working on CC2541. I set up the entire environment required for CC2541 and also tried to program it with IAR embedded workbench with sample examples like toggle LED on board GPIOs. It went well. Now i would like to work further on BLE. I installed BLE stack 1.4.2 and trying to understand the SimpleBLEperipheral project.
I could not understand the output of that project and how can i use cc2541 to transmit data to mobile APP?
I am learning BLE protocol stack now and i request to help me to respond to the query mentioned above.
Thanking you
Sumanth
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RF430FRL152H: How to read the data from the patch into a PC?
Part Number:RF430FRL152H
Hi,
I am a beginner using the RF430FRL152H patch. I want to read the sensor data from the patch into my PC through a NFC/RFID card reader. Please let me know the the ways in which I can do this.I also have a R430FRL152HEVM. Also can I use a Arduino RFID card reader to access the data from the patch. The GUI supplied only works with the TRF7970AEVM which is not currently available. Please suggest some suitable alternatives for TRF7970AEVM.
Thank you in advance for the help.
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FDC1004EVM: Using capacitance sensor to measure water height inside pipe
Part Number:FDC1004EVM
Hi,
I'm using this sensor to determine water height in a pipe and will the equation provided in the datasheet work for this since the electrodes are curved instead of vertical? And should the ratios of capacitances in the Level equation (Page 20 in the datasheet) should be less than one since it is multiplied by the height of the container? For me, testing shows ratio is greater than 1 and goes up to 4.
Thanks
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CCS/RM48L952: RM48L952
Part Number:RM48L952
Tool/software: Code Composer Studio
Dear sir/madam,
we are using RM48L952 microcontroller in our project. MIL 1553B communication through SPI. we are using MIBSPI1 port as normal SPI1 but communication is not happening properly.
when tried with SPI2 It is working fine. we are not getting what is difference between normal SPI and MIBSPI as normal SPI.
Please suggest & we are waiting for your reply.
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