Wireless Charging solution Wiki
This Topic is used for Wireless Charging solution 1.Mcu C drive code: GitHub - STMicroelectronics/STWirelessCharging-C-Drivers: Standard C platform-independent drivers for wireless charging ICs
Power management
Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.
Forum Posts
L4985A_PFC issue
HiI am using L4985A for my 110W PFC design. During testing boost inductor current is getting distorted when i increase the load. And also, audible noise from the boost inductor. Here I attached the waveform. I used eDesign suite for designing and sim...
STC3115 - do we really need to use the RAM
HiI am looking into STC3115 for a device, powered by a LiPo battery. The battery is not removable, main CPU turns off during low-power states.Looking at the AN4324 system integration manual, it describes the procedure to use the embedded RAM to save ...
Resolved! ST1S12G18R Output Voltage Issue - Feedback Not Functioning Properly
Hello,I'm encountering an issue with the ST1S12G18R DC/DC regulator. I've attached the reference schematic from the datasheet and my PCB layout, created in Altium. As you can see, my design matches exactly with the reference schematic provided by ST....
Resolved! VNH5019A-E- How to understand the thermal resistance (RθJA) in VNH5019A-E datasheet
I need to calculate and estimate the required thermal resistance and temperature in operation for thermal design. When I read in Section 3.1 of datasheet, I do not see the Rja I can use directly, instead, it presents a chipset configuration with vari...
Wireless Charging solution Wiki
This Topic is used for Wireless Charging solution 1.Mcu C drive code: GitHub - STMicroelectronics/STWirelessCharging-C-Drivers: Standard C platform-independent drivers for wireless charging ICs
How to set STUSB4710 PDO profiles
Hi, I am designing a 25W power supply for the raspberry pi 5 for my battery powered project. The buck regulator I am using has a fixed 5V output and I want to use the STUSB4710 to offer 5V 5A to the Pi. How can I program the registers to do so via I2...
Resolved! Looking for datasheet on diode
From what I can read on this diode it is from ST for sure, and it says VU beside the logo, the next line is M R, and the last line is GP922. Any help would be appreciated.
![IMG_20240703_171230[1].jpg](/t5/image/serverpage/image-id/81033iF37C115DDD9E5E14/image-size/medium/is-moderation-mode/true?v=v2&px=400)
![IMG_20240703_172423[1].jpg](/t5/image/serverpage/image-id/81034iCCDB80FA118F59F9/image-size/medium/is-moderation-mode/true?v=v2&px=400)
STWBC86JR wireless charge efficiency
Hi,When we were using the STWBC86JR as the wireless charging TX, we encountered a problem. The design is defined as wirelessly charging the battery and supporting the product's operation. The tested charging efficiency was relatively low, only 43%. W...
Resolved! STWLC38 VRECT over-voltage clamping resistor
Hello experts, I have a question about how to determine the resistance value.In STEVAL-WLC38RX circuit schematic, R4 = 200, R5 = 200, R6 = NA.What is the idea behind the values you set?The electrical characteristics in the datasheet for STWLC38 state...
N channel MOSFET as LOW side switch for capacitive Load
Hello Team, I am looking for an N channel MOSFET as Low side switch for Capacitive Load.Application is to generate sharp negative pulses as below.Supply Voltage range: 25V to 450VPulse width: 25nsec to 9usecPRF: 0.5msecPulse current is 8Amax for 9use...
