Power management

STUSB4500 - SCL and SDA really pulled low when none of VDD or VSYS is present?

According to the datasheet, this is what would happen if no VDD or VSYS is present. This seems like odd behaviour for an open drain output. This also does no correspond to what I'm measuring on the board. Any insights?

How to find ΔVcboot of STGIPQ4C60T-HZ according to AN4840 which doesn't specifies where can be found some values for example. Vrds(on), Vgemin .

I am trying many days to find the value of ΔVcboot for a typical Vcc (15V). To be more accurate I cant find the requested variables of Page. 24 on AN4840. Any help or suggestion would be appreciated.Tags: ΔVCBOOT , VCBOOT , Vcboot

Problem with low inductor values and high current ripple and export to eDsim with ST8R00WPUR in eDesignSuite

I am was assigned a project where I need to design a step-up (boost) converter drom USB 5V to 12V using eDesignSuite.The only boost converter that suited these criteria that I could find was the ST8R00WPUR synchronous boost regulator.I have a 1A max ...

STUSB4500 (not the lite version) - VBUS_EN_SNK does not pull low. VBUS CTRL register shows it's read only - so how to ensure it pulls low so i can switch power to my system?

Example of PM8805 EVB (EVLPOE007V1/STEVAL-POEL45W1)

Hi, I'm looking for a layout example of PM8805 EVB (EVLPOE007V1/STEVAL-POEL45W1)BRShmuel

We are using L6480 Microstepping motor controller for driving a pump. Could you please let us know how to test overtemperature protection feature for this IC for application?

STEVAL-ESC001V1 circuit schematic question

Hey Community!Newbie here + first postIn the STEVAL-ESC001v1 can someone please explain what this portion of the schematic means/is doing (document attached)?Also how do you determine the max current draw of your Hbridges? Most I have seen just defin...