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
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  • 19 replies
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ISO8200B query

1. Fault signal trigger: Communication error, what is the mechanism of its occurrence2. Does a watchdog timeout lower the Fault signal?3. Direct control mode, does the watchdog work?4. What is the tWD value?    

zhuyix by Associate
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Resolved! Power good (PG) pin on LD39100

HiI am looking some guidance how to use the PG pin to indicate the power good mode with fixed versions of LD39100. (3.3 and 1.8V versions.) I plan to use the 3.3V output as an input for the fixed 1v8 ldo version, so ideally all I need to monitor to v...

lamikr by Associate
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  • 1 replies
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Regarding REF pin and LDO pin outputs

Hello ST Team, We are using L5965 power management IC in one our projects. Currently we are in design phase and like to address one concern we are facing right now. So, if anyone could clarify, then it will be boon to us.Coming to the matter.In the b...

Resolved! STEVAL-ISV020V1 - min required voltage to be operated

Hi ST Community / @Peter BENSCH I use my solar panel connected to the STEVAL-ISV020V1 to charge my LiPo battery. Everything works fine and it charges the battery. However since I am trying to charge it indoors, during night-time, my solar panel doesn...

rsmqu by Associate II
  • 2070 Views
  • 10 replies
  • 1 kudos

Resolved! VIPER319-HD AC/DC Design

Hello friends, i design  ac/dc converter circuit using VIPER-319HD with eDesignSuite. One point makes me confused. In attached document, i am not sure these points are GND or not. When i look the datasheet, it seems that these points are related with...

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Resolved! About VNL5030JTR-E

Thank you very much for your help.My name is Ichikatai, Designe Engineering Department, NIKKI CO.,LTD.Regarding the VNL5030JTR-E productI believe that high melting point solder (lead 85% or more) is used in the semiconductor chip part as an exemption...

Ichi by Associate
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  • 1 replies
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exposed pad

“What could happen if the exposed pad of the LD39200 is not properly grounded? Could it affect its functionality?Is there any limitation regarding the reflow temperature for the LD39200, considering that everything seems fine initially but only 0.4 V...

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rmessino by Associate
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  • 1 replies
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Resolved! STM32F405 behavior when VCap pins aren't connected

Good morning,I'm using STM32F405 for my embedded project and this PCB version showed itself a real MCU killer... So far, it has already burned 4 MCU. Here's my situation. It's not my first time designing using an STM32 (I've already used STM32F103), ...

Agatti by Associate
  • 1308 Views
  • 4 replies
  • 2 kudos