Power management

Strange behavior ST1S40

I use ST1S40 to power the microcontroller and SIM800C modem. Microcontroller uses 3.3V after LDO. The modem is powered on by the PWR_MODEM_ON signal and VT3-> VT2. Yellow line - power supply voltage + SIM_VBAT. Blue line + 3V8 after ST1S40.Sometimes ...

How to make resistivity LOAD SWITCHER for 10A, 400VDC 4KW using 88N65M5 N channel MOSFET. Please help me. I have tested but 88N65M5 MOSFET breaked. What do i mistake to it?

Can you tell me where I can find the soldering profile recommendations for STH240N10F7-6?

I have seen a few discussions in various online communities that imply that it is possible to use the STC3115 with LiFePO4 batteries, but nothing is mentioned in the official docs (datasheet, app notes that I've seen, etc.). Is it possible?

If so, what should I know about doing this? Are there any app notes or other reference information about it?

I want to design Controller and TRIAC based Universal Motor Drive. Could you please suggest some good application notes and design circuit.

Is there an updated version of MasterPresentationMotorControlSeminars2018_v0830.pdf?

I did the hands-on seminar in 2018 and am trying to repeat it now for a new BLDC control project I have, with updated software and the same ST hardware. Problem is the presentation is out of date, especially starting with the STM32 MX portion. Is t...

What is the maximum power dissipation of STC3117 fuel gauge?

Where do I find package footprint dimensions for the HTSSOP16 package used by the PM8800? More generally, where are ST Micro's package specifications?