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參數資料
| 型號： | MIC2592B-5YTQ |
| 廠商： | MICREL INC |
| 元件分類： | 電源管理 |
| 英文描述： | Dual-Slot PCI Express Hot-Plug Controller |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48 |
| 封裝： | LEAD FREE, TQFP-48 |
| 文件頁數： | 1/31頁 |
| 文件大?。?/td> | 1916K |
| 代理商： | MIC2592B-5YTQ |
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March 2005
1
M9999-033105
MIC2592B
Dual-Slot PCI Express Hot-Plug Controller
General Description
The MIC2592B is a dual-slot power controller supporting the
power distribution requirements for Peripheral Component
Interconnect Express (PCI Express) Hot-Plug compliant
systems. The MIC2592B provides complete power control
support for two PCI Express slots, including the 3.3VAUX
defined by the PCI Express standards. Support for 12V, 3.3V,
and 3.3VAUX supplies is provided including programmable
constant-current inrush limiting, voltage supervision, pro-
grammable current limit, and circuit breaker functions. These
features provide comprehensive system protection and fault
isolation. The MIC2592B also incorporates an SMBus interface
via which complete status of each slot is provided.
All support documentation can be found on Micrel’s web site
at www.micrel.com.
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
Features
Supports two independent PCI Express slots
SMBus interface for slot power control and status
Voltage-tolerant I/O for compatibility with SMBus 2.0
systems
12V, 3.3V, and 3.3VAUX supplies supported per PCI
Express Specification v1.0a
- Intergrated power MOSFETs for 3.3VAUX
- Standby operation for Wake-on-LAN applications with
low backfeed on Main +12V and +3.3V rails.
Programmable inrush current limiting
Active current regulation controls inrush current
Electronic circuit breaker for each supply to each slot
High accuracies for both circuit breaker trip points and
nuisance trip prevention timers
Dual level fault detection for quick fault response without
nuisance tripping
Thermal isolation between circuitry for Slot A and Slot B
Two General Purpose Input pins suitable for interface to
logic and switches.
rails
Ordering Information
* Contact factory for availability
Disabled
0.375A
Package
Pb-Free
48 Pin TQFP
MIC2592B – 5BTQ* MIC2592B – 5YTQ*
MIC2592B – 3BTQ* MIC2592B – 3YTQ*
150mV
0.375A
48 Pin TQFP
Part Number
100mV
0.375A
MIC2592B – 2BTQ MIC2592B – 2YTQ
48 Pin TQFP
Fast-Trip Thresholds
Current Limit
Standard
12V and 3V
3.3VAUX
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