Part Number: DS90UB940-Q1EVM
Hi Team,
May I know the reference design of EVM is the newest version or not?
If not, then where should I modify? Or TI could provide the newest version?
Thank you,
C.T.
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DS90UB940-Q1EVM: The reference design of EVM
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TPS82085: Thermal derating graph of 3.3V output
Part Number: TPS82085
Hello,
There are thermal derating graph on the datasheet when Vout is 1.2V and 2.6V. We would like to see Vout = 3.3V thermal derationg graph.
Is it possible to share the information?
Best regards,
Toshihiro Watanabe
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TMS320F280049: GPIO internal circuit
Part Number: TMS320F280049
Hi Champ,
Could you help to provide the GPIO internal equivalent model?
Is it like below pic?
Does that means when output 0 , there are 70ohm resistor connect to the GND?
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TLV758P: Schematic Review
Part Number: TLV758P
Dear Team,
I am using two LDO's from TI for one of my Project. Their P/N are TLV75801PDBVT and TLV70033DDCR.
The input voltage is coming from a USB and these go directly to the I/Ps of LDOs.One LDO is used to Power the OPAMP and another one for Comparator.
Could you please check the attached schematic . (Please visit the site to view this file)Please let me know your comments.
Regards
HARI
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TPS54334: Maximum rated voltage of the EN pin? (Simplified schematic)
Part Number: TPS54334
Hello, I have a question regarding the simplified schematic used in the datasheet of the TPS54334.
In the schematic a resistor divider (where R1 = 221 kOhm and R2 = 84.5 kOhm) is connected to the EN pin with a Vin of 4.2 V to 24 V. However, with a Vin of 24 V, this should result in a voltage at the EN pin of around 6.6V. This is higher than the absolute maximum rated voltage of 6V that is mentioned in the datasheet. Is this possibly a mistake in the datasheet or is this because of some other reason?
Thank you.
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AWR1843BOOST: how to interface the AWR1843 EVM with other microcontrollers??
Part Number: AWR1843BOOST
Hi,
I'm using AWR1843 EVM and now i'm trying to interface with other microcontrollers,I wanted to use SPI Protocol to transfer data ,where can i start with?
Thanks
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DS90UB947-Q1EVM: The reference design of EVM
Part Number: DS90UB947-Q1EVM
Hi Team,
May I know the reference design of EVM is the newest version or not?
If not, then where should I modify? Or TI could provide the newest version?
Thank you,
C.T.
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DS90UB948-Q1EVM: The reference design of EVM
Part Number: DS90UB948-Q1EVM
Hi Team,
May I know the reference design of EVM is the newest version or not?
If not, then where should I modify? Or TI could provide the newest version?
Thank you,
C.T.
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LM5033: Results of ICT (in-circuit tester) inspection
Part Number: LM5033
Hi,
I am FAE, a distributor of TI products.
I received a question from a customer.
Before mounting the IC on the board and performing an operation test, the customer performs an inspection with an in-circuit Tester.
Among them, there seems to be a problem with the result when 1V is applied to VIN (1pin) and GND (7pin).
Normally, the resistance value between pins is 40Ω or less. (1V / 40Ω = 25mA)
In rare cases, the resistance value between pins is about 8Ω. (1V / 8Ω = 125mA)
This current seems to be the current that flows in the parasitic diode inside the IC. How much current normally flows in a normal product when 1V is applied?
Customers want to determine the threshold for normal and abnormal products through ICT inspection.
I received a question from a customer.
Before mounting the IC on the board and performing an operation test, the customer performs an inspection with an in-circuit Tester.
Among them, there seems to be a problem with the result when 1V is applied to VIN (1pin) and GND (7pin).
Normally, the resistance value between pins is 40Ω or less. (1V / 40Ω = 25mA)
In rare cases, the resistance value between pins is about 8Ω. (1V / 8Ω = 125mA)
This current seems to be the current that flows in the parasitic diode inside the IC. How much current normally flows in a normal product when 1V is applied?
Customers want to determine the threshold for normal and abnormal products through ICT inspection.
Best regards,
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DS90UH949-Q1EVM: The reference design of EVM
Part Number: DS90UH949-Q1EVM
Hi Team,
May I know the reference design of EVM is the newest version or not?
If not, then where should I modify? Or TI could provide the newest version?
Thank you,
C.T.
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ADS54J66: About the clock termination
Part Number: ADS54J66
In ADS54J66's datasheet, it shows the termination schema as:
But in http://www.ti.com/tool/ADS54J66EVM, the schema is:
Which one is better? Why the EVM don't use the shcema the recommended by the datasheet?
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DS90UB926QSEVB: The reference design of EVM
Part Number: DS90UB926QSEVB
Hi Team,
May I know the reference design of EVM is the newest version or not?
If not, then where should I modify? Or TI could provide the newest version?
Thank you,
C.T.
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MSP430F5529: Device Firmware Upgrade thru' TI's Factory USB BSL on Receiving a string from communication on USB from my pc application s/w
Part Number: MSP430F5529
Hello ,
I am facing .."USB device not recognized" error on my PC when I try to do firmware upgrade from within my mcu firmware( SOFTWARE METHOD ).My implementation & idea as follows :
a. We use 24 MHz X2 crystal.
b. My MCU application code uses USB to communicate to our PC application as a normal function.To initiate F/W upgrade, PC application will send a string on usb communication.
c. upon receiving the string( let's say "USBBSL") MCU application will disconnect usb and jump to USB BSL location at 0x1000 . i am using TI's USB API.
if( Received string == "USBBSL")
{
USB_reset();
USB_disconnect();
__disable_interrupt();
((void (*)())0x1000)();
}
d. after executing the above i get the error . and TI 's "MSP430 USB Firmware Upgrade Example " GUI shows "No device connected"
e. My assumption is that after executing code as in (c) ....MCU should go to TI's Factory USB BSL area and wait for TI's F/W upgrade example GUI to get the device detected.I am following SLAA452C doc.
Please note by H/W method i.e by holding PUR pin high by a jumper.. &..connecting USB to the MSP device , I was successfully able to do F/W upgrade.
Please can any one has a solution or point out which is missing in my process.....pls
Thanks & Regards,
Ars
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SN74LVC2T45: Output spike issue
Part Number: SN74LVC2T45
Hello Team,
Requesting your help on this.Our customer is having issues with the SN74LVC2T45 output. The device are used to translate signals from 3.3V to 5V level. However, output spikes appears upon its power-up.
Attached are waveforms and additional information.
He confirmed that they have followed the correct supply and power-up sequence recommendations given on the datasheet.
We would really appreciate any help.
Regards,
Jejomar
(Please visit the site to view this file)
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DLPDLCR2000EVM: DLPLC2000EVM NOT WORKING.
Part Number: DLPDLCR2000EVM
Hi team,
Unfortunately 12V --2A power supply is given to DLPLC2000EVM , still not responding only blink Green color led light only on the PCB board..
Thanks,
Gowdham
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TLV7011: Comparator circuit Review
Part Number: TLV7011
Dear Team,
I am designing a comparator circuit which operates in two modes Low Power Mode( LPM) and Normal Mode (NPM). These are the conventions we are following
Let me explain Normal mode for you. In this mode VIH is 3.6V and VIL is 2.8V. But we are not directly giving this I/P to the comparator.
This "VIH" and "VIL" get divided using a voltage divider. The voltage coming at the comparator I/P will be 1.386 and 1.078.
The REFHI for the comparator is 1.282 and REFL is 1.182 so HYS is 100mv.
Please find the attached schematic and NPM and LPM calculation details and I/P waveforms also. Maximum I/P Frequency is 100Khz
Please review the same and let me know your comments.
Regards
Hari
(Please visit the site to view this file)
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CC2642R: Restart on exceptions
Part Number: CC2642R
Hi,
I have a project using CC2642R based on Simple Peripheral. In release build I want it to restart whenever any kind of exception or abort() happens. I have looked over the .cfg file but I'm not sure which of the hooks below I need to implement or if there is a standard policy to handle this. I have noticed that some of them default to a spin which I really don't want.
Error.policyFxn
Error.raiseHook
m3Hwi.enableException
m3Hwi.excHandlerFunc
System.abortFxn
System.exitFxn
SysCallback.abortFxn
SysCallback.exitFxn
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TDC7200: SPI Mode
Part Number: TDC7200
Hi Team, we would like to seek your support on our customer's inquiry. Our customer is using a different MCU and it requires to specify the serial port if it the SPI is Motorola or TI Mode for this device.
We are hoping for your clarification.
Thank you very much.
Regards,
Mark
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WEBENCH® Tools/LM25118: LM25118 related detail reqired
Part Number: LM25118
Tool/software: WEBENCH® Design Tools
HI team,
We are designing a power supply using LM25118 IC which have below requirements.
1) Input voltage: 9V to 36V(down to 3V at the cold crank)
2) output voltage: 4V@7A and 12V@3A
3) what is the output voltage at our input voltage is 3V in cold crank condition?
please reply as soon as possible.
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DRV110A-Q1: Maximum external FET gate charge
Part Number: DRV110A-Q1
How do I calculate the max acceptable gate charge of the external FET? In TIDU584A (section 4.2.2.6) the recommendation is that the gate charge should be less than 10 nC. However TIDA-01621 use MOSFET SI7414DN-T1-E3 with 26nC max total gate charge. If a MOSFET with even larger gate charge is required, would you recommend using an external low side gate driver?
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