Power management

2N5551HR LCC-3 Package Pin Orientation

Looking at the 2N5551HR datasheet pages 7 - 9, it is misleading where pin 1 is located. If you look at the UB package on page 7, pin 1 seems to be on the opposite side to the ident and dot. Does this also mean the LCC-3 package is also wrong. Can ...

I'm using the STC4054 Li-ion single cell charger in a design, the CHRG pin is supposed to have a weak pull-down when not charging but the current drawn is higher than specs

In the STC4054 datasheet, it says the CHRG pin is supposed to have a weak pull-down of max 35uA when no battery is connected yet. However, with a 4.7Kohm pullup from that pin to 3.3v, I measure a 1.2v drop, which indicates about 250uA of current. Wit...

Help with nucleo board and pca9685 servo board

Hello everyone,I came here looking for help : I'm doing a project for an intership where i have to create an hexapod robot basically from the ground up, with particular interest in the electronics and programming part.As a main microcontroller, we ar...

Problems with STSPIN32G4. False overcurrents errors, and gd_nfault occurs. Bad soldering process?

Hi, we are facing a strange problem with your MCU + GD combo - STSPIN32G4. In general, about 60% of soldered ICs are not working properly, we test on the default firmware generated for EVSPIN32G4 and we get error "64 overcurrent" and / or gd_nfault a...

Investigating the Cause of Empty Measurement Fields in EVAL3PHISO Kit's STPM005 Software

I am attempting to establish a connection between the EVAL3PHISO kit and its accompanying software, the STPM005 GUI. To power up the board, I am utilizing a USB cable connected to my laptop. The illuminated green LED on the kit verifies that the boar...

The datasheet of the powerStep01 says: After each Byte the CS Pin must be toggeled, but in the diagramm the CS Pin is toggeled between these four bytes. What is correct? Are there additional failures in that datasheet?

I want to know the FIT rate of following IC L9908TR.

Why would I use a STM704 instead of a STM806 battery monitor?

Program in my STSPIN32G4 is not executed while i turned controller power off and on, how to check if the code is in flash memory