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Item 4 Max column shows “1,2,3,4”. This is PSE Type? In truth, according to Figure 33-14, there is a maximum possible Icon that is Ilim_min.
The minimum Icon is the PSE lowerbound template for continuous current, i.e. after Tcut.
In the text, the phrase “normal POWER ON state” seems vaguely defined. Is this specifically a condition where the PD is operating within its allowed steady-state power budget meaning the PSE is operating at or below the lowerbound template for continuous current ?
Specifying Icont-2P-unb MAXIMUMS of 668 mA for Type-3 and 931 mA for Type-4 seems confusing. A Type-2 PSE today can furnish up to 684 mA continuously (with or without pair-pair unbalance) and meet the template in Figure 33-14. That is higher than 668 mA, of course. Again, this may tie back to a PSE operating at or below the lowerbound template – that would represent the constraint in order for 668 mA to be a Type-3 maximum pair set current.
Food for thought….
Please review for the meeting tomorrow.
Power over HDBaseT Subcommittee
Chief R&D Engineer
Analog Mixed Signal Group
1 Hanagar St., P.O. Box 7220