MAX4370
Description
The MAX4370 is a circuit-breaker IC designed to offer protection in hot-swap applications using Maxim’s Dual Speed/Bi Level™ detection. This controller, designed to reside either on the backplane or on the removable card, is used to protect a system from startup damage when a card or board is inserted into a rack with the main system power supply turned on. The card’s discharged filter capacitors provide a low impedance that can momentarily cause the main power supply to collapse. The MAX4370 prevents this start-up condition by providing inrush current regulation during a programmable start-up period, allowing the system to stabilize safely. In addition, two on-chip parators provide Dual Speed/Bi Level short-circuit protection and overcurrent protection during normal operation. The MAX4370 provides protection for a +3V to +12V single supply. An internal charge pump generates the controlled gate drive for an external N-channel MOSFET power switch. The MAX4370 latches the switch...
