Power management

hii do you have evaluation board for L9935Two-Phase Stepper Motor Driver

Hi ST,I could find pdf format of those files under CAD Resources but can't find gerbers and schematic project files.If they are available, how can I get those files?Thank you.

On Page 8 Chapter 4 Electrical Characteristics, the Value IIN says on Shutdown mode with RPRG = 24kOhm is typically 60uA. This is quite a lot! Does this current also flow when the charging adapter is not connected anymore, meaning Vin = 0V ?

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We have tried three different Qi compatible charging pads which are successfully charging other devices.We are seeing the ping from the charging pad's transmitter but are not seeing the reply from the STWLC68 that is required to establish the power transfer connection. Do you know why we are not able to establish a connection between the STEVAL-ISB68WA and the Qi compatible charging pad? The GUI for the STEVAL-ISB68WA is working as expected. We were wondering if there might be an issue with the STWLC68 automatically retrieving default settings from the OTP memory.Has anyone experience this issue? Thanks in advance for any suggestions you may have.

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Hello,I have a X-NUCLEO-IHM07M1 suite. When I used this hardware and the FOC algorithm(PWM frequency is 8kHz) to drive a BLDC motor. Then I found that the overcurrent protection was always triggered, but I didn't know why it was triggered and how to solve it. Can someone help me?In my control algorithm I am using only the next pins of L6230 chip:- EN1, EN2 and EN3 (for enable the whole bridge),- IN1, IN2, and IN3 (on that pins I generate PWM signals, without dead time),- 3 pins for reading currentsAlthough the motor can rotate, it has the strong vibration and the l6230 chip is seriously hot, as the same in this problem community.st.com/s/feed/0D50X0000AeXo70SQCI use 24V DC input. Here are three oscilloscope waveforms.In the first figure, yellow waveform is a PWM input of the l6230, and the blue waveform is the out1 output, It is obvious that the out1 output is discontinuous.The second is a magnified version of the first picture.The third figure shows that the yellow waveform is the wav

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Hello,I would like to use an stusb1702 on my custom board as source / DFP docking. I found git project for an stusb1602 and nothing for stusb1702. Can someone confirme to me that I2C Register Map is the same between both. Indeed I am not able to write in some registers (register based on git project for stusb1602) to configure my PD controller in SRC / DFP role.For information i use a dc dc buck boost controller which delivers VBUS 5V for USB-C alimentation.Sincerely,Paul-Emile PerrinSafran Software Ingeneer

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 I am planning to turn on the chip really slow, around 0.5s, so the current going through the internal MOSFET is going to be small. The input voltage is about 24V, i do not plan to use external MOSFET. so the issue is, I do not see SOA of the internal MOSFET, can you share. or from the RJA as 40c/w, I can have 2.5W on this chip(suppose ambient 75c). But is there a time limit? for 0.5s could this long time burn the chip?

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I am currently doing a project regarding thermal energy harvesting using TEC Peltier modules and an spv1050 IC chip. I constructed the circuit according to the website-sourced datasheet of the spv1050 and the picture below. However, I didn't get the desired output voltage. The input voltage from the TEC is approximately 500mV and should boost more than 3.3V. But the Output voltage from the V store that I manage to catch is about 2V only. the ldo1 and ldo2 pins from spv1050 also the simulation I get 1.8V but when using a component to do a process fabrication I cannot get the result. Is anyone have experience using this kind of configuration and can tell me what is wrong? Thanks in advance!

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Hi,I'm looking for example project in CubeIDE. I tried the board with SPINFamily and it worked great. Now we want to program it to our needs.Thanks!

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