Quantcast
Channel: Motor drivers forum - Recent Threads
Viewing all articles
Browse latest Browse all 15414

DRV8301 on custom PCB not outputting PWM

$
0
0

We created a PCB board using the specifications from the datasheet for the DRV8301 but we are not getting any output when connecting this board to a C2000 LaunchPad XL TMS320F2802x. We are setting EN_GATE high at 3.3 V and have the 6 PWM's connected between the Launchpad and our board but there is no output from the DRV8301. We have tested our code using the BoostXL-DRV8301 and the LaunchpadXL and that works so we don't think it's a software issue. When we power the custom board at 12 V and set EN_GATE at 3.3 V directly, we tested AVDD to be 0.4 V, GVDD to be 0.25 V, and DVDD at 0.4 V. nOCTW and nFault always are 1.4 V with 10 K ohm pull up resistors whether EN_GATE is low or high. Attached is a pdf of the pcb schematic. Any help would be appreciated.(Please visit the site to view this file)


Viewing all articles
Browse latest Browse all 15414

Trending Articles



<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>