Power management

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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 2. Python drive code, check attach file "Python_FT260_S...

willzhou by ST Employee
  • 7 replies
  • 3 kudos

Resolved! L99MH98

I would like to know the working principle of the charger bump for MH98, as well as the working principles of CPOUT, CP1, and CP2. Why can the voltage of the bootstrap capacitor reach 11.3V when VDH = 6V? In other words, why can the voltage of CP rea...

Resolved! LDL212PUR bypass capacitor requirements

Hi all. The data sheet for the LDL212PUR low dropout linear regulator does nor specify the quality of the input and output bypass capacitors with regard to ESR or loss tangent requirements.  Most LDO regulators require at least one low ESR bypass cap...

SteveD by Associate
  • 2 replies
  • 0 kudos

Please reply my question regarding L9369 GIO

I am writing because I have a question about the L9369 chip. The second case of above table ( SPI_GIOx_HSCtrl == 0 and SPI_Off_Giox == 1) , Output  is set to HIGH. I'm curious why GIOx Output is HIGH when SPI_GIOx_HSCtrl is 0.  Thank you.

jwprk123 by Associate
  • 0 replies
  • 0 kudos

Do you have a solution for wBMS?

Hi~   I am curious about the solution which referred to the wBMS I heard that you have BMS solution SOC. But I haven't heard about the wBMS. If you have, please let me know it   Many thanks BRs Daniel Lim

Resolved! LED1202QTR

Hello ST Team,We are observing that LEDs are minor glowing, during turn off condition due to leakage current. As per our application we are not not using any PWM configuration for LEDs. We are just making LEDs turn ON/OFF as per application requireme...

kadam_0-1713076004679.png kadam_1-1713076048300.png
kadam by Associate II
  • 1 replies
  • 0 kudos


Hi, I am MURALI SELVAM from India, We are plan to build the circuit for Battery Monitoring circuit for which I select L9963E so someone give me suggestion for ensure L9963E part number is suitable for my project, My battery spec is "6S 25200 mA/h so ...

murali by Associate III
  • 0 replies
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USB Device Not Recognized for STBC08PMR

Hello,On my custom designed PCB, there is a USB port for battery charging and programming ESP32 microcontroller. When I plug in to the PC, I get "USB Not recognized" message. In addition, the two LEDs are light up. In the datasheet of the charger IC ...

AE104 by Senior
  • 1 replies
  • 0 kudos