Power management

L6564 used to BUCK controller, the buck output voltage is not set-point voltage at startup, and L6564 control logic is incorrect

L6564 used to BUCK controller, the buck output voltage is not set-point voltage at startup, it's output is equal to input as duty cycle =1, please help to resolve it, thanks.the below is waveform and buck circuit, CH1 is output voltage B+, CH3 is buc...

What is the minimum time required for PB about SRC0CS25D at Power-UP?

What is the minimum time required for PB  about SRC0CS25D at Power-UP?When PB is pulled to Low, even though PSHOLD is High, the EN may fall Low.PB Low time was about 200ms. The time PB Low to PSHOLD High was about 150ms.If the PB Low time was about 4...

why is l4981A operating current into vcc pin 19 high er than normal

at times the current rises to 300ma and overloads the aux supply , shutting the IC down . What can cause an unwarranted rise in input Q current ?

Why is heating up L6230 chip (on IHM07M1 expansion board)

I have a Nucleo-F302R8 board with X-Nucleo-IHM07M1 motor driver.When I run the motor (using my sensorless algorithm, PWM frequency is 20kHz) the L6230 chip is started to heat up and the temperature of the chip has very fast increased.In the L6230 dat...

the F302 project example of X-CUBE-SPN8 doesn't work

Dear I try to flash the example image which is located at the following path"STM32CubeExpansion_SPN8_V1.0.1\Projects\Multi\Examples\MotorControl\Src"to development board and using six-step to start motorbut the motor doesn't startup , check the failu...

STEVAL-ESC001V1 UART and JTAG Hardware Requirements

For this EVAL board, I see that there are 2 headers, one for JTAG [SWD] and one for Serial [UART] communications. It appears that these are just the raw digital 3.3 V logical connections from the MPU itself.However, there is not a single example sch...

POWER AND ENERGY value from STPM32

Hello,I am using STPM32 to monitor the voltage and current. When I refer the datasheet of STPM32 it shows we can directly get the power and energy value from STPM32. I am using STM32F429 as my MCU and using UART communication with STPM32. Please tell...

Identify an ST part for package markings?

Can someone help identify an ST part from the package markings?Top line : GZ912nd Line : 29013rd line: MRC717Thanks,​              Andy

we are using STM6510 IC, pls provide us LTSpice simulation model