SN65HVD33: Current limit

Hi Nishie,

The output short circuit current isn't a limit - it is a tested and measured value. If Y and Z are shorted together the worst case scenario is that +/-250mA will flow between Y and Z. Essentially this test is seeing what happens if Y and Z are being driven and the Y and Z lines short circuit - and across this device's operating range the worst you can expect is a current with magnitude 250mA.

However we recommend during normal operation that the output current stays with the range of -60mA to 60mA .

While there is not "max" current listed for the driver on the abs max table - what is denoted is the max rec. junction temperature of the device --> the output current will directly increase junction temperature and depending on environment and how the part is being used the junction could get too hot - this is specified as there are multiple factors at play but its not recommended to go above the -60mA to 60mA under normal conditions.

Please let me know if you have any other questions!

Best,

Parker Dodson