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參數(shù)資料
| 型號： | MIC2593-5BTQ |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Dual-Slot PCI Hot Plug Controller |
| 中文描述： | 雙插槽的PCI熱插拔控制器 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大小： | 170K |
| 代理商： | MIC2593-5BTQ |
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April 2004
1
M9999-042204
MIC2593
Micrel
MIC2593
Dual-Slot PCI Hot Plug Controller
General Description
The MIC2593 is a power controller supporting power distribu-
tion requirements for Peripheral Component Interconnect hot
plug systems compliant to PCI v2.3 and PCI-X 1.0b. The
MIC2593 provides complete power control support for two
PCI slots, including the 3.3V
AUX
defined by the PCI v2.3
specification. Support for +5V, +3.3V, +12V, and –12V sup-
plies is provided and includes programmable current limit,
voltage supervision, fault reporting, and circuit breaker func-
tions which provide fault isolation. The MIC2593 also incor-
porates an SMBus interface that provides complete status
and control of power within each slot.
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 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 +3.3V
AUX
- Integrated gate driver circuits, current sense,
and power MOSFETs for 3.3V
AUX
, +12V, and –12V
- High-side +5V and +3.3V gate driver circuits for
external N-Channel MOSFETs
Overcurrent protection with adjustable timeout elimi-
nates 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
5V & 3V Fast-trip
Threshold
100mV
Disabled*
+12V & –12V Fast-trip
Threshold
1.5A/0.4A
1.5A/0.4A
Part Number
MIC2593-2BTQ
MIC2593-5BTQ
Operating Temp. Range
0
°
C to +70
°
C
0
°
C to +70
°
C
Package
48-Pin TQFP
48-Pin TQFP
*Contact factory for availability.
LITTLE FOOT is a registered trademark of Siliconix Incorporated.
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