Opal Part Change Notification

Number: PCN-OPAL-1.4

Issue Date: 26 March 2015

Implementation Date: 26 March 2015

Description: Removed Shottkey Diode from DA9053 input circuit.

Reason for change: A production batch exhibited higher than acceptable overshoot on the DA9053 input on start-up resulting in damage to the DA9053 on some units.  Removing the diode reduces the overshoot to within tolerance for the DA9053.  The overall impact is a drop in efficiency of 1-2% for the DA9053.

 Customer action required: None required.

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