Power management

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

By pass capacitor, stability and possible OSCILLATION

STNS01 data sheet dated 14-Dec-2017, Revision 4, schematic is enclosed. What precaution are recommented to prevent the chip going into oscillation. On value of Cap, pcb trace length, rated voltage (MLCC capacitance drops when DC is a good percentage ...

PCB copper thickness

Dear Support, in the data sheet of LED2001, it provided the layout reference, but it didn't mention the copper thickness. for the demo board, what is the copper thickness in oz of the PCB of.STEVAL-ILL054V1, Thank you very much, David

Resolved! Strange response from L6981N50DR. (L6981)

Hi, In one of my designs, I used the L6981 5.0v low-noise variant. I followed the datasheet, and this was my first time using this chip. However, I added an option that separates the AGND and PGND pins with a ferrite bead which is not present in the ...

L9963E Eval Board GUI Error

Hi There, I want to try the L9963 development board. I downloaded the GUI but I get an error. I go to the site from the warning and upload but my problem persists. Could I be having this problem because my computer is Win10?Does anyone have a solutio...

2024-01-11 13_14_12-L9963_evaluation_GUI.png

LED2001 Smoked with set to 4A output

Dear Support,I have a design which works fine even drive it full PWM with 0.025 ohm (4A max current). we need to control the backflow current so added a diode on the power supply path. the schematic is attached. C169 and C170 not installed. it works...

Resolved! Wireless Charge IC Qi2.0 Products

Dear STM, May I know do you have product roadmap for Qi2.0 compliant 15W RX, due to obsolescent of Qi1.3 on 2026.

Marking on LED2001

for LED2001, the marking on the chip like LED2K1xxxx118. or xxx125. how to understand the Marking under the LED2K1? Thank you,David

Reg: Cooling type clarification for part STPS10200SF

Hi All,As mentioned in the datasheet for part the part STPS10200SF, it was stated that cooling will be conduction cooled.Please clarify that the cooling method will be either top cooled or bottom cooled.Thanks in advance.,Ganapathy Raman.I

STWLC38JRM does not output 5V at VOUT pin

Hi all,I am designing the custom wireless charging receiver using the STWLC38JRM chipCurrently, when I put the circuit on the wireless charging pad (Qi standard), I notice that the STWLC38JRM chip does not output 5V at the VOUT pin. Below is the sche...