Power management

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

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Resolved! SPV1040 - using LX to generate a boost supply

This is to turn on MOSFETs that operate above 5.2V supply of the Boost regulator.  I have followed a forward converter guidance roughly in one of the application notes, but I have not used a transformer but placed a high value resistor in the voltage...

AL-0060-03A Car Dynamo manager - Field Drive opts -1.png

Resolved! Wlc38 Digital Ping Power Consumption

Hello, We are looking to use the Wlc38 in Bi-directional mode alternating between RX and TX digital pings. We are wondering how much power consumption the digital ping takes and for what duration so we can calculate power consumption of pinging at va...

rjengr by Associate
  • 265 Views
  • 1 replies
  • 1 kudos

Resolved! About High Side Driver Selection

Hello everyone,I am finding to drive for 4 cabin lock. For this, VNxxx or VNQxxx series help me. I don't need high current. It is 1 amper per channel(per output.  I'm looking for a chip that will not cause any supply problems and will be produced con...

ufukv by Associate II
  • 589 Views
  • 2 replies
  • 2 kudos

Resolved! STPMIC1D Boost bypass

HiIs it possible to bypass the boost by applying a 5V voltage directly to BSTOUT (VLXBST is left unconnected)?Thank in advance for your reply

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Spub by Associate
  • 256 Views
  • 1 replies
  • 0 kudos

ACS, ACST negative voltage schematics ?

I found the ACS108-6SA that seems to fit my needs.   1) I will control the gate with my stm32G0B1 uC. I really don't understand why I have to connect the 24VAC Neutral to the +3.3VCC of the MCU ! It sounds like dangerous no? i can understand that the...

FloSolio by Associate II
  • 557 Views
  • 2 replies
  • 0 kudos

Resolved! Encrypted Spice model for altair04-900

Hello!I am currently designing a flyback converter with the altair04-900.The .lib file in the spice model folder is encrypted. I cannot open it neither with Altium nor with ltSpice.I would like to know, which simulation software can decrypt it? And, ...

Viper12, AC-DC non isolated Buck converter 5V 60mA

Hello, I'm considering using Viper12 to 3Phase AC/DC non isolated buck converter 5V 60mA Vout. I found some application notes like AN1357. But is it reliable? Or will it cause problems in long-term operation? Has anyone experienced it before? Thanks,...

MGökhan by Associate
  • 490 Views
  • 3 replies
  • 0 kudos

Resolved! SCTWA70N120G2V Ron data

I want the specific Ron data corresponding to different VGS values (e.g., 8V–15V) when the MOSFET switch SCTWA70N120G2V is in the linear region.

Kyle4 by Associate
  • 344 Views
  • 1 replies
  • 1 kudos

Output capacitor selection for LD1085D2M-R

Edited by a ST moderator: Update the title and the content with the part number Hi,I'm using LD1085D2M-R regulator. There is no certain information about output capacitor ESR limit value for stabilization.  -Input : 5V -Output : 4V @3A -Desired Outpu...

hamzdmr by Associate II
  • 687 Views
  • 5 replies
  • 4 kudos