MIC2593

The MIC2593 is a power controller supporting power distribution requirements for Peripheral Component Interconnect hot plug systems compliant to PCI v2.3 and PCI-X 1.0b. TheMIC2593 provides complete power control support for two PCI slots, including the 3.3VAUX defined by the PCI v2.3 specification. Support for +5V, +3.3V, +12V, and -12V supplies is provided and includes programmable current limit, voltage supervision, fault reporting, and circuit breaker functions which provide fault isolation. The MIC2593 also incorporates an SMBus interface that provides complete status and control of power within each slot.

Features
  • Supports two completely independent PCI slots: Compliant to PCI v2.3 and PCI-X 1.0b power control requirements Provides all major power control functions for two independent PCI-X 2.0 slots
  • Compliant to PCI v2.3 and PCI-X 1.0b power control requirements
  • Provides all major power control functions for two independent PCI-X 2.0 slots
  • Five voltage supplies supported: +12V, -12V, +5V,+3.3V, and +3.3VAUX Integrated gate driver circuits, current sense, and power MOSFETs for 3.3VAUX, +12V, and -12V High-side +5V and +3.3V gate driver circuits for external N-Channel MOSFETs
  • Integrated gate driver circuits, current sense, and power MOSFETs for 3.3VAUX, +12V, and -12V
  • High-side +5V and +3.3V gate driver circuits for external N-Channel MOSFETs
  • Overcurrent protection with adjustable timeout eliminates false tripping of circuit breakers
  • Dual-level, dual-speed overcurrent detection circuitry for quick fault response without nuisance tripping
  • Slot power control with "Power-is-Good" and Fault status reporting Via software over an SMBus interface or Via dedicated hardware input/output lines: Hot Plug Interface (HPI)
  • Via software over an SMBus interface or
  • Via dedicated hardware input/output lines: Hot Plug Interface (HPI)
  • Complete thermal isolation between circuitry for Slot A and Slot B
  • One General Purpose Input (GPI) pin per slot for mechanical switch or plug-in card retention/removal input
Parameter
Parameter Name Value Value
Product type Compact-PCI/PCI-X/PCI-Express Compact-PCI/PCI-X/PCI-Express
Latch off Yes Yes
FAULT 2 2
Θja (C/W) 56.5 56.5
Documents
MIC2593 - Dual-Slot PCI Hot Plug ControllerData Sheets11/05/2015220KB
Micrel AN 108 - Universal Serial Bus Power ManagementAppNote10/02/2015125KB
Micrel AN 21 - Dual Current-Limiting Switch for USB ApplicationsAppNote10/01/201536KB
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC2593-2YTQ0.1252000.85200048TQFP7x7x1.0mmMatte Tine3
MIC2593-2YTQ-TR0.1252000.73800048TQFP7x7x1.0mmMatte Tine3
MIC2593 - Dual-Slot PCI Hot Plug Controller MIC2593
Micrel AN 108 MIC2593
Micrel AN 21 MIC2593