Quantcast
Channel: Motor drivers forum - Recent Threads
Viewing all articles
Browse latest Browse all 14309

DRV8242-Q1: Driver does not report OLA fault in register

$
0
0
Part Number: DRV8242-Q1

Tool/software:

I am currently working on report errors and protection mechanisms of the DRV8242-Q1 driver,  and I am facing an issue with the driver's OLA (Open Load detection)  mechanism. 

After setting the EN_OLA bit in the CONFIG1 register and ensuring the driver's state is active, I conducted the following tests:

  • Without a load: I alternately switched the high-side FET on and the low-side FET off for every 10 seconds.
  • With a load: I performed the same alternation and then removed the load from the two OUTx pins after several FET switching cycles.

=> In both cases, the driver did not report an OLA fault in either the FAULT_SUMMARY register or the STATUS1 register.

Information about the load used:

  • Operating voltage: 9–16V
  • Rated current: 0.15A
  • Peak current: 2A

Information about the setup:

  • Input voltage to the driver: 12V
  • The load is connected to the two OUTx pins of the driver.

Registers used:

  • COMMAND Register: Set bits CLR_FLT, SPI_IN
  • CONFIG1 Register: Set bits EN_OLA, OCP_RETRY, TSD_RETRY, VMOV_RETRY, OLA_RETRY

Viewing all articles
Browse latest Browse all 14309

Latest Images

Trending Articles



Latest Images

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