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MIC2341R

Micrel Semiconductor
Part Number MIC2341R
Manufacturer Micrel Semiconductor
Description Dual-Slot PCI Express Hot-Plug Controller
Published Apr 15, 2011
Detailed Description MIC2341/2341R Dual-Slot PCI Express Hot-Plug Controller General Description The MIC2341 is a dual-slot power controller...
Datasheet PDF File MIC2341R PDF File

MIC2341R
MIC2341R

Overview
MIC2341/2341R Dual-Slot PCI Express Hot-Plug Controller General Description The MIC2341 is a dual-slot power controller supporting the power distribution requirements for Peripheral Component Interconnect Express (PCI Express) Hot-Plug compliant systems.
The MIC2341 provides complete power control support for two PCI Express slots, including the 3.
3VAUX defined by the PCI Express standards.
Support for the 12V, 3.
3V, and 3.
3VAUX supplies includes programmable gate voltage slew-rate control, voltage supervision, programmable current limit, and circuit breaker functions.
These features provide comprehensive system protection and fault isolation.
Data sheets and support documentation can be found on Micrel’s web site at: www.
micrel.
com.
Features • • Supports two independent PCI Express slots 12V, 3.
3V, and 3.
3VAUX supplies supported per PCI Express Specification v1.
0a, v.
2.
0 • Integrated Power MOSFETS for 3.
3VAUX rails • Standby Operation for Wake-on-LAN applications with low backfeed on Main +12V and +3.
3V rails Electronic circuit breakers for each supply per slot - Programmable gate voltage slew-rate control - Active current regulation controls inrush current High accuracy Primary and Secondary Circuit Breaker Current-limit Thresholds Dual-level, dual-speed fault detection for fast response without nuisance tripping User-programmable Primary Overcurrent Detector /PWRGD and Delayed /PWRGD (164 ms) signal outputs per slot Separate /FAULT output signals for MAIN and AUX rails for each slot Global Systems Power-is-Good Output Both slots thermally isolated Internally Debounced Plug-in Card Retention Switch Inputs per slot.
• • • • • • • • • Applications • PCI Express v1.
0a, v2.
0 hot-plug power control ___________________________________________________________________________________________________________ www.
DataSheet4U.
com PCI Express is a registered trademark of the PCI SIG Micrel Inc.
• 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • f...


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