OPA549-HIREL: Can I use the voltage at the ILIM pin as current monitor?

Benyuan Liu

Intellectual 595 points

Part Number: OPA549-HIREL

Hi,

Can I use the voltage at the ILIM pin of OPA549-HiRel as the current monitor?

Benyuan

over 4 years ago

0 Christian Yots over 4 years ago

TI__Genius 14540 points

The apps engineer supporting this device will respond to your inquiry upon his return to the office on Friday.

Thanks.

0 Zak Kaye over 4 years ago

TI__Mastermind 23050 points

Hi Benyuan,

No, the ILIM pin can not be used in this way as the current through this pin is not related to the output current. This pin just sets a reference point to compare against the output current for limiting purposes, the output current sensing is done internally.

Best,
Zak

0 Benyuan Liu over 4 years ago in reply to Zak Kaye

Intellectual 595 points

Thank you!

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OPA549-HIREL: Can I use the voltage at the ILIM pin as current monitor?