L6229 L6235 +5V Supply

dgrimes · ‎2014-12-03

Posted on December 03, 2014 at 19:24

For EVAL6229 or EVAL6235 with PractiSpin board it looks like 3.3V or 5V reference is from other PCB, is there a way for L6229 or L6235 to supply 5V (for EN, F/R, BRAKE) internally?

Does ST make compatible 8-52V to 5V (or 3.3V) DC-DC conveter that would be good companion for L6229 if this cannot make own 5V source (like L4971 but with fixed output and not needing so many external components?)

Enrico Poli · ‎2014-12-15

Posted on December 15, 2014 at 16:07

The EVAL boards can generate the 5V pull-up voltage through a zener diode.

For your final application ST proposes a wide range of step-down converters covering the 8V to 52V range. For example you can use the

http://www.st.com/web/catalog/sense_power/FM142/CL1456/SC355/PF63210

,

http://www.st.com/web/catalog/sense_power/FM142/CL1456/SC355/PF63207

and

http://www.st.com/web/catalog/sense_power/FM142/CL1456/SC355/PF63205

.