ADuM54xx and ADuM64xx: Startup Problems

Q

My part has startup problems during Power Up

A

This startup issue looks like that described in the attached note as symptom no
2. The solution is to reduce the capacitive load and/or add a resistive load
to avoid restart issues, as shown in figure 1. There is a revision that is
available through distribution, with data code 11/28 or later.

Please see the symptoms in the attached document

This applies to all ADuM52xx and All ADuM64xx parts

There is a new die available which was introduced mid 2011 - please see
specific PCNs

Attachments:

VisoStartupIssues.doc