Power management

Selecting SPV1040 for energy harvesting from solar cell

Hi,This is John from Qmax Systems, We are designing a product - energy harvesting from solar cell. Our application requires a boost converter to convert 0.5V to 4.2V with an output current of min 100 mA. Do you think LTC3105 will support this applica...

SPV1040 not working as specified in the datasheet

Hello. I am using the SPV1040 solar boost converter within the STEVAL-ISV012V1 development board. The datasheet states that the converter can work with an input voltage as low as 0.3 V. The solar cell I am using is able to provide 0.6 V (Voc) and 100...

MTTF value of the following components.

Could you please provide me the MTTF (Mean Time to Failure) Value of following components. 1. TL431    https://www.st.com/resource/en/datasheet/tl431.pdf2. STM6720   https://www.st.com/en/reset-and-supervisor-ics/stm6720.html3. P0102BC     https://ww...

STSPIN32F0 for automotive application

Hi, Any risk in automotive application(water pump) ?Are you intend to make a automotive version?Regard，Vincent

LTSpice simulation for Viper26

Dears,I have found the Pspice model in your website, but I want to simulate it in LTSpice, could you please share another model or tell me how to change it to suit for LTSpice?​thanks�?Shanfeng​

Embedded PGA sensing error due to no differential input for shunt resistor

Hi, I am currently developing a motor control application with more than 50A. My current solution is using LM358 with differential input to elimate the low side shunt voltage due to high current. ​Now, I would like to reduce the PCB size and componen...

Dear Experts, i want to design one solar based power for my Micro controller board that power supply design must support solar input instead of dc adapter, can you please suggest the idea to complete that,

L9942 not working properly accoding to the sample

Hello  I'm a newer about  stepping motor IC L9942 I compsed of  L9942 Climate control Unit in HVAC .Some devices have no problem when they are controlled by a program.A specific device rotates discontinuously when it rotates.I am looking for the caus...

Where does VB come from in STEVAL-POE005V1 in RAUX-only mode?

Hello,I have a question concerning PM8805 and the related evaluation board STEVAL-POE005V1.From my understanding in the evaluation board the PGD signal is pulled-up by a resistor to VB.Now, when I power the board only by RAUX, where does the voltage ...