Power management

Phase current isn't precise at different speed

Hi all,I am using STM32F303RE + IHM08M1 to do a bike project (250W/36V motor).When the motor ramp up, I found the current will output very low and become higher according to speed.I connected a current meter between battery and the board, I found the...

Is it possible for this IC (PWD5F60) to be cascaded in series in an interleaved configuration? For example the output of it to be connected at the input of another IC (PWD5F60), and so on multiple times. Is it possible to operate in all four quadrants?

spice models for ST1L05CPU33R

Hi , We are using ST1L05CPU33R in our Design. We need spice models for ST1L05CPU33R. If you have this. Could you Please share with us.Thanks & ReagrdsKranthi

hi, I am going to use the VNH5019 driver and i want to use 6cell Battery Pack ( Total 25.6 V). can the driver have the capability? VNH5019 run between 5 ~ 24 voltage but the 6cell battery pack is 25.2V. thanks

How is the max rpm calculated?

I am trying to understand the max rpm limitation. I previously thought that the theoretical max speed would be calculated by Kv * battery voltage. But in any case the real max speed at no load is a half of expected.I use a STEVAL-ESC001V1 at 18V with...

L7985A ENABLE Threshold

Dear All,I've a problem with my step-down regulator L7985A.On power up, the DC / DC is activated when the ENABLE pin reaches about 880mV, while on the datashhet it is reported 1.2V as the ON threshold.Can you explain to me what this difference is due...

Quality Issue About TIP147

HI Sir, May I ask you for the help due to the quality issue of TIP147, functional fail,Customer would like to known what the problems and want to get analysis report,Attached is the picture for the component, what the information needed to provide th...

L9907 undervoltage

Hello, we have a L9907 evaluation kit and we are trying implement the software to get L9907 to run. We have some problems we need support for:we supply the board at 24V and are using the VBAT_Scal circuitry to scale down the voltage on the VB pin, bu...

Measuring at the output of the L6235, we see during the offtime, that the outputs doesn't stay low. Could someone advise us what could go wrong in our application.?

Our BLDS motor becomes warm/hot at no load, at room temperature. In our application the surrounding temperature is more then ambient up until 55°C. Any addition heat that we generate inside the motor will cause the motor to quickly overheat, with pos...