Power management

Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.

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Forum Posts

In need to replace a resistor diode

Greetings, I have being searching for this diode but I had no luck. Markings: BEX 6BA (SG)?)This is an electronic control module (ECM) 12v for an ATV 2007 Polaris 450. I am trying to fix it and I need help to buy this little piece. Any help will be a...

Diode.jpg
frwycop by Associate
  • 298 Views
  • 4 replies
  • 2 kudos

Bring-Up of L6591 without PFC

 Hello everyone,we are currently trying to bring up the L6591 without PFC, but unfortunately we have not been successful so far.It looks like the L6591 is not able to start up correctly.The Vcc voltage slowly rises to about 14V with the built-in HV s...

camillem by Associate
  • 145 Views
  • 0 replies
  • 0 kudos

Resolved! Thermal Resistance of the SOT-223 Package

I am selecting the LD1117S50CTR. The package is SOT-223.I understand that the thermal resistance Rthja = 110 °C/W shown in the datasheet is the value for the IC alone.Since I am designing the PCB, I would like to know the relationship between copper ...

Matsuura by Associate II
  • 308 Views
  • 4 replies
  • 1 kudos

PowerSTEP01 Low speed optimization

I cannot see the effect of the low speed optimization.I set speed to 1 rpm and watch the phase currents.With these settings (these values are readbacks):min_speed: 0x1fdfconfig: 0x2c90step_mode: 0x0007I get significant distortion around 0 A:To compar...

Gostervall_0-1763385262693.png Gostervall_1-1763385324820.png

PowerSTEP01 self-contradicting datasheet

The PowerSTEP01's datasheet says on page 34 that MIN_SPEED is 12 bits wide.On page 37, it is described as 13 bits wide.I suppose that 13 is correct, from code I've read online, but a confirmation (and fix) would be nice. I cannot see the low speed op...