Datasheet > MIC2341R

MIC2341R

更新时间： 2024-11-08 10:57:19

品牌	Logo	应用领域
麦瑞 - MICREL		控制器 PC
页数	文件大小	规格书
32页	1278K
描述
Dual-Slot PCI Express Hot-Plug Controller

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MIC2341R 数据手册

MIC2341/2341R

Dual-Slot PCI Express Hot-Plug

Controller

General Description

Features

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.

•

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

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

•

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

___________________________________________________________________________________________________________

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 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-102507-A

(408) 944-0800

October 2007

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