Power Management ICs Forum Discussions

Hello.
Would you mind if like to know about EVAL_TDA38740_3.3VOUT.
I was writing to the device using "tuning & debugging" of "XDPDesigner 1.9.0".
(Using USB dongle "USB005(59.31)")
I accidentally wrote something, so I stopped it midway through, but after that, the device was no longer recognized.
If the USB dongle is disconnected during writing or if writing is interrupted midway, will the device become unrecognized?
Also, is there a way to initialize the device in that case?
Sincerely yours.

I need to design 2 isolated supplies. For both, I am fed by a PFC front-end with a input voltage range 350V ~ 410V. My output shall be 28V. The 1st supply should deliver 200W and the 2nd supply should deliver 400W. I was first considering the LLC topology with ICE2HS01G-DS but after going into some reference material, found that EMI will be a problem later on due to the varying frequency of the converter. I therefore am considering a forward converter topology with an active clamp. I want to use the same topology for both designs in order to re-use circuitry and minimize risk. I came across the XDPP1100 digital power controller but what I would like to verify is whether the choice of topology and controller is in fact the optimum choice. I am not space constraint but my operating temperature will be at a maximum of 65 deg C, so efficiency is critical. I do not have forced air to cool down my design so I will have to rely on conduction cooling. Some inputs or advice will be greatly appreciated.

Dear Infineon engineer，

I want to use TLE7386-3E chip to generate 5V, 3.3V, and 1.3V voltages. However, in my design, it's not for MCU. Therefore, for the pins related to reset, RO_1, RO_2, and the pins related to watchdog, WDI, WDO, can I just give them a constant high or low voltage level? That is, I don't need these monitoring functions, as long as the chip can generate voltages normally.

Your help with this matter is invaluable to me, and I thank you in advance.

Doublemint

We have EVAL_PS5401-25A Evalution board with us, we are using 4 switchers (A, B, C, D) and one LDO. We made configurations based on the schematic from the User Guide.

Switchers (A, B, C) working well, we are getting excepted output in GUI and even when we are measuring with the multimeter, but for Switcher D in GUI (PowIR Center Build tool) it's showing correct value but when we are measuring with multimeter, we are seeing difference in the output voltage.

Even we have checked the voltage by multimeter at feedback resistor (R43) there we are getting the half of the excepted output voltage, but at switcher port it's showing more voltage as attached in image.

Can you please let us know where we are going wrong or any hardware issue. 

Thanks & Regards

Navin

Hello,

As you can see in the attached document, “Bidirectional CLLC” is mentioned. I wonder that could you please send me the PLECS file OR could you please send me the document that shows how I can control CLLC when it is on the "forward and reverse mode conditions"?

Regards,

Mehmet

Dear Sir,

I need an AUX power under 10W ,3.3V application which Input DC Vin 150V. 

I saw the Coolset product - EVAL-ICE2QR1765Z.  (provide a voltage of 70VDC to 380 VDC depending on the mains  input voltage.)

Input voltage 85Vac~265Vac
Input frequency 50Hz, 60Hz
Output voltage and current 5V 2A
Output power 10W

can I follow the EV kit of EVAL-ICE2QR1765Z and take off bridge rectifier BR1 to work with input VDC at 150V?

thanks.