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
  • 9716 Views
  • 22 replies
  • 19 kudos

L9369-tr IC is not responding.

One of our project we are using L9369-tr IC and we are trying to communicate with the IC using TC38X controller with SPI protocol. We are able to send the data but IC is always giving 0x8efffff6 data as a response and it is not valid data.   Could yo...

Resolved! BULK ID

Can I find the manufacture year from the bulk ID? Most of ST parts only indicate the last digit of the year, sometimes we just don't know it is 2013 or 2023. 

L7987L Failure

Hi, we are using L7987L IC top generate -15V from 24V input. However, we see repetitive failure in the IC. I have attached the waveform also (Green- Input Voltage, Pink- Vout). I am also sharing the layout for the same. Switching frequency we have ke...

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Shivalee by Associate II
  • 552 Views
  • 6 replies
  • 0 kudos

STEVAL-DPSTPFC1 source code and BINARY code

hello,I have STEVAL-DPS334C1 and STEVAL-DPSTPFC1. I am trying to put PFC code on STEVAL-DPS334C1 again. I load bin file via stm32programmer. then STEVAL-DPS334C1 crashes. I need source code to find where the error is coming from. Or if you have any s...

STEVAL-DPSTPFC1 Hardware Problem

Hello.When I measure between 5V_SCR1 and GND_SCR2 in STEVAL-DPSTPFC1 Hardware, I see 9V. And when I start via Switch, it goes into standby mode when the output is unloaded and reaches 300V. It never becomes 400V. I quickly turn the switch to the off ...

Motor acts as generator and damages VNHD7008AY

We use the VNHD7008AY to control the motor of a cargo lift. The lift has an emergency switch, which disconnects the battery from the circuit.In case of an emergency cutout, the lift runs down while its motor generates a high voltage, which finally ki...

Marc1 by Associate III
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  • 2 replies
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Resolved! LDL212PUR LDO ceramic caps and resistor values

Hi,I want to buy LDL212PUR LDO. I have 2 questions:1. Can it work reliably with ceramic capacitors?2. What are the recommended resistor values for voltage adjust version?I cannot find this information in the datasheet.Thanks,Adam

awocrf by Associate III
  • 283 Views
  • 1 replies
  • 1 kudos

Resolved! About the TS3330AMR

The TS3330AMR has a voltage reference, but the internal configuration of the IC is unclear.Is a reverse bypass diode, like the reverse voltage protection of a linear regulator, unnecessary?

Ikegawa by Associate
  • 247 Views
  • 1 replies
  • 1 kudos