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LM3409HVEVAL issue

Other Parts Discussed in Thread: LM3409HVEVAL

Hello-

I’m playing with LM3409HVEVAL (REV C), but I'm having a problem thermally. See: http://www.ti.com/lit/an/snva390c/snva390c.pdf

Why does the FET Q2 get extremely HOT when 5V is connected? PWM2 input is floating. Thanks and Best Regards,

-Tim Starr on behalf of JSA@AI