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MIC2593 Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC2593 Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 26 page MIC2593 Dual-Slot PCI Hot Plug Controller LITTLE FOOT is a registered trademark of Siliconix Incorporated. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( 408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com September 2008 M9999-092208 General Description 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. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. 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 • 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 • 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) • 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 Applications • PCI hot plug power distribution Ideal Applications: • Mid- and High-end Server Applications compliant to PCI v2.3, PCI-X 1.0b, and PCI-X 2.0 ___________________________________________________________________________________________________________ Ordering Information Part Number 5V & 3V Fast-trip Threshold +12V & –12V Fast-trip Threshold Operating Temp. Range Package Lead Finish MIC2593-2BTQ 100mV 1.5A/0.4A 0° to +70°C 48-Pin TQFP Standard MIC2593-2YTQ 100mV 1.5A/0.4A 0° to +70°C 48-Pin TQFP Pb-Free Note: Contact factory for availability of the MIC2593-5YTQ option that disables the 100mV fast-trip threshold. |
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