HIP1011A

HIP1011A PCI Hot Plug Controller NOc1NTo-8nOR8taE8Rc-CEItNOCoTMOuErMMRTMESeNIEcLhDNonEDriDcEwaDFlwOSRwRuE.ipPnNpLtEeoArWrsCt iCElD.ceMEonSEmtINeG/rTtNsacSt DATASHEET FN4631 Rev 5.00 November 16, 2004 The HIP1011A is the second PCI Hot Plug Voltage bus control IC from Intersil. A drop-in alternative to the widely used HIP1011, the HIP1011A has the same form, fit and function but additionally features an adjustable latch-off time of the MOSFET switches and fault reporting. Like the HIP1011, the HIP1011A creates a small and simple yet complete power control solution with discrete power MOSFETs and a few passive components. Four independent supplies are controlled, +5V, +3.3, +12V, and -12V. The +12V and -12V switches are integrated. For the +5V and +3.3V supplies, overcurrent (OC) protection is provided by sensing the voltage across external currentsense resistors. For the +12V and -12V supplies OC protection is provided internally. In addition, an on-chip reference is used to monitor the +5V, +3.3V and +12V outputs for undervoltage (UV) conditions. The PWRON input controls the state of the switches. During an OC condition on any output, or a UV condition on the +5V, +3.3V or +12V outputs, a LOW (0V) is asserted on the FLTN output and all MOSFETs are latched-off. The time to FLTN signal going LOW and MOSFET latch-off is determined by a single capacitor from the FLTN pin to ground. This added feature allows the system OS to complete housekeeping activities in preparation for a...