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Switching Power Supply Current-Limit Latchup(3 of 6)
Solvability
Reduction of the load at start-up, or static, dynamic, or adaptive modification of the start-up trajectory or current limit. The following can be used keep the source/load lines from crossing.
Start-up into no load or a reduced load.
Prevent operation at low input voltages (hysteresis is usually desirable).
Extend or remove the current limit during start-up (not applicable to inherently current-limited sources).
Limit the maximum duty cycle of the switching-mode regulator during start-up.
Use adaptive control to limit the duty-cycle as a function of input voltage.
Do not use this information for design without independent verification of the information.
