2025-02-27 3:51 AM
hello comunity,
i want design a motor controller with the stspin32g4.
i have a question about the build in buck converter:
i want use the stspin32g4 just with a 4s battery ca 15V and a 2 wire control ifc (servo pwm + ground).
I want the stspin32g4 generate the power Vdd and Scref for the internal gate drivers with the internal buck converter.
some body told me I not need the diode D1 and also not need the inductor 18uH what we see in the datasheet. because the used Vcc = 15V is so low. is this true? or should I add the diode and 18uH inductor? similar what we see in datasheet Figure 9 : 3.3 V LDO regulator supplied through VCC
maybe some body can explain it. or even can add a pdf or picture with the circuit for stspin32g4 power management.
thank you
Frank