The Gate pull-up current of LT4356 is specified at -4.5uA (min), -30uA(typ), -50uA(max) for Vgate = 48V, Vcc =48V. I was wondering under what conditions the gate pull-up current can drop to -4.5uA.
The Gate pull variation depends on Temperature and Supply voltage along with part-to-part variation.
The following plot (from datasheet Pg. 6) depict the gate pull-up current variation with temperature and Vcc.
The worst case corner is expected at lower Vcc and high temperature.