Power management

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STWBC86 stops working after a few days

Hi,I have a array of 2x5 STWBC86 on a aluminium plate to make a charging station for multiple devices. They are all connected to a common 5V source and decoupled by a small filter of Ferrite bead and MLCC.After testing them for a while i let them res...

S3rr4 by Associate II
  • 10 replies
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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
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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.


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


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
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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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SPV1040T Not Working as intended.

Hello, I'm trying to use the SPV1040T MPPT IC to boost up the 1.5V I'm getting from the Solar Panel to 3.8V. When I Power ON the MPPT IC its output just follows the Input and i don't see any chances of voltage getting boosted up. Is there anything wr...

Stalin by Associate II
  • 16 replies
  • 1 kudos

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