Power management

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

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Forum Posts

L9963E accuracy calibration mode

Hello ST community! Actually my question is very simple. Is there anybody who worked with IC L9963E and used some calibration for more accurate Vcell measurement? I've found only mentioning in the datasheet about it. and in registers' section.But how...

Screenshot 2024-01-25 111523.jpg Screenshot 2024-01-25 111442.jpg

VREG on L9963E chip

Hi, I see on the datasheet that the external NMOS on the voltage regulator is connected to the positive terminal of the battery stack. Since the VREG voltage is 6.5V, can I connect the external mosfet to a lower tap of the battery stack? I want to do...

GPapo.1 by Associate
  • 1124 Views
  • 1 replies
  • 0 kudos

STC3115 Vcc Pin Getting ~0.7V In Power OFF

Hi Team,I'm using STC3115AIQT on one of my projects for a 3.7V Li-Ion battery monitoring. I'm powering the IC by supplying an external 3.3V on the VCC pin (From an LDO) of the IC and giving my battery voltage input on the VIN pin.During the normal op...

Resolved! Backup power

Hello, my device will work in a car and I need to arrange power for the RTC. Is the H750 processor used, is the diagram in the screenshot suitable or are there better technological solutions?

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Denys_T by Associate III
  • 1965 Views
  • 5 replies
  • 1 kudos

Isolation between NC pin and Cathode on STPSC20H12-Y

We have an application using an STPSC20H12-Y silicon carbide power Schottky diode in the D²PAK HV package (full MPN STPSC20H12G2Y-TR).  This diode has a No Connect pin that we would like to tie to the Anode pin to simplify board layout and improve th...

Pete_ by Associate
  • 939 Views
  • 0 replies
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Bias voltage on ST1L08PUR

Little confused by the spec of a max 90mV dropout while the Bias voltage needs to be >=1.5V higher than the regulated voltage.So this regulator is only good in the case where that higher voltage is already present in the system?https://www.st.com/con...

markn by Associate
  • 894 Views
  • 1 replies
  • 0 kudos
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