The MIC2580A is a hot-plug controller that provides safe and orderly insertion and removal of PCI-based adapter cards from a PCI hot-plug compatible system backplane or CompactPCI™ system. The MIC2580A employs a circuit breaker function to protect all four power supplies (+12 V, +5 V, +3.3 V and -12V) from overcurrent fault conditions. Current foldback limitations prevent plugging in adapters from causing large transient currents to live backplane cards, such as in CompactPCI systems. A programmable slew rate control limits high inrush current loads that occur after power-on and large capacitive loads. Supervisory functions for all four supply voltages provide "Power Good" (/PWRGD) and "Over Current Fault" (/Fault) diagnostic outputs. Power good and overcurrent protection faults include glitch filters to prevent tripping. When activated, all four power supplies are within power-good tolerance. go after an overcurrent fault (/fault) or an active overheat condition. On-off control input (/ for cycle power generation adapter card.

Features • Hot-plug PCI and CompactPCI™ hot-plug support • 12 V, +5 V, +3.3 V and -12V power control • Circuit breaker to protect system functionality • Programmable slew rate control for all consumables • Foldback current limit • +5 V and +3.3 V, programmable current limit thresholds • Diagnostic output undervoltage and overcurrent protection • Diagnostic fault output glitch filter • Integrated +12 V and -12V MOSFET switches • Integrated high-side driver, 3.3V and 5V external switch • CompatPCI Pre-Charged Power™ I/O Termination

Applications • PCI Hot Swap System • CompactPCI™ Hot Swap System