TPS65917-Q1: TPS65917 PMIC

Hi,

This current seems quite high. With no load, the input current of the device usually sits around 50mA. Have you checked for shorts on the outputs? Can you measure the resistance from each output to ground?

Also, which TPS65917 part number are you using?

For I2C communication with the PMIC, the device will need to startup correctly with no interrupts and RESET_OUT going high before it can communicate with the GUI. Likely, if the device is not starting up correctly, you will not be able to use the GUI yet.

Thanks,

Nastasha

Thanks!

I found when I press down the K1, PIN11 SMPS3_SW will output a 5V, and this phenomenon cause the PIN11 damaged, then the chip goes very hot; 

And now , I  removed L3, there is only 27mA current after I press down the K1;  

My TPS65917 marked "OTP 52  1.1";  I was also confused which part should choose, since there are so many Device Markings in the datasheet.

I2C communication still jammed; My USB2ANY didn't output any signal, seem  my GUI dosen't  work correctly; 

Can you give us an exactly download link of LabVIEW, since there are many errors about xxx.lvlib xxx.vi,

and I'm using WIN7-64.

Hi,

It looks like you may be shorting SMPS3 to your VCC3.3 domain. SMPS3 has a 1.8V output. There is a conflict here.

To pick which part number you are using, see our user guides. This is the user guide for 0x52 OTP: http://www.ti.com/lit/ug/slvuas4e/slvuas4e.pdf

The I2C will not work if there is a short. You can probe your interrupt pin. If the interrupt is set during startup, you will not be able to communicate through I2C.

You should only need the executable files that can be downloaded online for the GUI to work: http://www.ti.com/lit/zip/slvc670

Thanks,

Nastasha

We are intend to use TPS65917 to power XILINX MPSOC, which need  0.85V core voltage; 

TPS65917 seems  has a default voltage after powerd up, such as1.06V 1.15V; 

Do TPS65917  got the ability for us to change the default output voltage before SMT?

Hi,

Which version of Xilinx processor are you using?

TPS65917-Q1 is programmed through OTP (one-time programmable). Once programmed in the TI factory, you cannot change the default voltages and sequences. You can only change the voltages after startup through I2C.

We do have some PMIC solutions for Xilinx processors, however, it would be helpful to know which variant you are using.

Thanks,

Nastasha

Thanks a lot!

We are using XAZU3EG and  XAZU5EV for ADAS, both automotive grade.

we have read all TI PMICs nearly, and compare many other vender's; TPS65917 might be the best solution.

One piece TPS65917 for XAZU3EG, and two piece for XAZU5EV. enought current, automotive grade, no external LDOs need and proper price.

But the OTP default voltages makes it unsuitable for MPSOC~~oh no~~

Is there any possibility for us to ask TI factory to make another OTP verison specially for XILINX MPSOC?

Or, can the OTP operation left for the customers to do?

Hi,

The OTP for TPS65917-Q1 cannot be done by the customer, only in the TI factory. If you are interested in a custom OTP there are minimum volume requirements, you would need to reach out to your local sales representative.

I am looping in our expert for Xilinx attached power solutions for recommendations on ZU3EG and ZU5EV.

Thanks,

Nastasha

Thanks!

This discretely solution mainly increased our board area, and we prefer TPS65400+LP5912.

Hi Nastasha:

    There ara about 8 OTP  verision in TPS65917's datasheet, where can I find all those 8 OTP default powerd up volutage?

Just in case there is any one 0.85V default.

And we are contacting ARROW to know about custom OTP and MOQ.