Power management

Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.

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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    

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willzhou by ST Employee
  • 9688 Views
  • 20 replies
  • 18 kudos

L6924UTR: abnormal behavior of ST1 and ST2 outputs

Hi all,   I have a problem with the L6924 in the below schematic. After ca. 1 minute of USB power both red and green LED lit and the output keeps on bouncing from 0 to 4.6V with or without battery attached. The 5V USB are stable and so is the charger...

stop by Associate II
  • 369 Views
  • 0 replies
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Question for SPSA068 program

Application: BMSEAU: 100KSOP: 2025Q3End customer: NDA needI want to know SPSA068 if we can program by customer?How to program? Any tools we can use?Do ST can provide burning file from factory configuration?

RandyHou by Associate
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  • 1 replies
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STUSB4761 rejects PDO with 5A

We try to use STUSB4761 for a 100W USB-PD Source.Test setup includes our PCB with STUSB4761 as power source, an e-marked 5A rated cable and Acroname "USBHub3c Pro Edition" as power sink.According to the log (see Attachement) of the USB PD communicati...

STUSB4761_Config_20241119_1.png STUSB4761_Config_20241119_2.png STUSB4761_Config_20241119_3.png STUSB4761_Config_20241119_4.png
mrs by Associate II
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  • 11 replies
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USBLC6-4SC6 Schematic Design Verification

Hi,We are using USBLC6-4SC6 TVS Diode in our design for USB line. The schematic is shown below:We have connected IO1 pin in parallel to D+ line and IO2 pin in parallel to D- line of USB data lines where as IO3 and IO4 lines are left open. Can you ple...

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Information request for L6566B Vref voltage reference.

A 24 VDC, 10 A AC/DC converter design has been done using the eDesignSuite on the ST website.     In this design, L6566B controller has been used. After production of the prototype converter, we tested the converter using loads 4-5 amps. There was no...

EDokm by Associate III
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  • 1 replies
  • 0 kudos

STUSB4700QTR powersource and datasink

I have the following situation:I have a custom PCB with a 4 port HUB ic on it (TUSB8041IRGCR). The UFP of the hub is connected to  my phone and there are 4 DFP.My phone negotiates with the PD controller via CC lines about what voltage it wants when p...

Erwin_N by Associate II
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  • 9 replies
  • 0 kudos

STC3100 Data sheet

 Hi allMy team are using STC3100 for our project. But just I confusing as following itPlease see as following URTSTC3100  data sheet mentioned Rev1.1 and Date of 19 Sep 2016https://www.st.com/ja/power-management/stc3100.html#documentationBut this DL ...

Yoshi441 by Associate II
  • 1747 Views
  • 4 replies
  • 0 kudos