Hot Plug Controller 48-Pin QFN EP

The ISL6114 target the PCI-Express Add-in card hot swap application. Together with a pair of N-Channel and P-Channel MOSFETs, and two sense resistors per slot, either provides compliant hot plug power control to any combination of two PCI-Express X1, X4, X8 or X16 slots. The ISL6114 feature a programmable current regulated (CR) maximum level for a programmable period to each voltage load so that both fault isolation protection and imperviousness to electrical transients are provided. For each +12V supply, the CR level is set by a resistor value depending on the needs of the PCI-Express connector (X1, X4, X8 or X16) to be powered. This resistor is a sub-ohm standard value current sense resistor one for each slot and the voltage across this resistor is compared to a 50mV reference providing a nominal CR protection level adequately above the specific slot maximum limits. The 3.3V supply uses a 15m? sense resistor compared to a 50mV reference to provide 3.3A of maximum regulated current to all connector sizes. The 3.3VAUX is internally monitored and controlled to provide a nominal maximum of 1A of AUX output current.

• Dual PCI-E Slot Hot Swap Power Control and Distribution
• Highest Accuracy External RSENSE Current Monitoring On Main Supplies
• Programmable Current Regulation Protection Function for X1, X4, X8, X16 Connectors
• Programmable Current Regulation Duration
• Programmable In-rush Protection During Turn-On
• Latch-off or Retry Modes After Failure
• Pb-free (RoHS Compliant)