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MIC2591B-5YTQ

Description
Dual-Slot PCI Express Hot-Plug Controller
CategoryPower/power management    The power supply circuit   
File Size2MB,34 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Parametric Compare View All

MIC2591B-5YTQ Overview

Dual-Slot PCI Express Hot-Plug Controller

MIC2591B-5YTQ Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerMicrochip
package instructionTFQFP,
Reach Compliance Codecompli
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeS-PQFP-G48
JESD-609 codee3
length7 mm
Humidity sensitivity level3
Number of channels1
Number of functions2
Number of terminals48
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTFQFP
Package shapeSQUARE
Package formFLATPACK, THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.2 mm
Maximum supply voltage (Vsup)3.6 V
Minimum supply voltage (Vsup)3 V
Nominal supply voltage (Vsup)3.3 V
surface mountYES
Temperature levelCOMMERCIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature40
width7 mm
MIC2591B
Dual-Slot PCI Express Hot-Plug Controller
General Description
The MIC2591B is a dual-slot power controller supporting the
power distribution requirements for Peripheral Component
Interconnect Express (PCI Express) Hot-Plug compliant
systems incorporating the Intelligent Platform Management
Interface (IPMI) Specification v1.0. The MIC2591B 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, programmable current limit, and circuit
breaker functions. These features provide comprehensive
system protection and fault isolation. The MIC2591B also
incorporates an SMBus interface via which complete status
of each slot is provided. Data such as voltage and current
from each supply of each slot can be obtained for IPMI sensor
records in addition to the power status of each slot.
All support documentation can be found on Micrel’s web site
at 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 rails
- Standby operation for Wake-on-LAN applications with
low backfeed on Main +12V and +3.3V rails.
• On-chip circuitry for data collection of each rail output
voltage and output current for both slots
- Integral analog multiplexer and 8-bit
∆Σ
ADC
- Compliant to the Intelligent Platform Management
Interface (IPMI) Specification v1.0
- Conversion results available via an SMBus interface
• 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.
Applications
• PCI Express v1.0a hot-plug power control
Ordering Information
MIC2591B – 2BTQ
Part Number
Standard
Pb-Free
MIC2591B – 2YTQ
12V and 3V
Fast-Trip Thresholds
100mV
150mV
Disabled
3.3VAUX
Current Limit
0.375A
0.375A
0.375A
Package
48 Pin TQFP
48 Pin TQFP
48 Pin TQFP
MIC2591B – 3BTQ* MIC2591B – 3YTQ*
MIC2591B – 5BTQ* MIC2591B – 5YTQ*
* Contact factory for availability
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
March 2005
1
M9999-033105

MIC2591B-5YTQ Related Products

MIC2591B-5YTQ MIC2591B MIC2591B-2BTQ MIC2591B-5BTQ MIC2591B-3BTQ MIC2591B-3YTQ
Description Dual-Slot PCI Express Hot-Plug Controller Dual-Slot PCI Express Hot-Plug Controller Dual-Slot PCI Express Hot-Plug Controller Dual-Slot PCI Express Hot-Plug Controller Dual-Slot PCI Express Hot-Plug Controller Dual-Slot PCI Express Hot-Plug Controller
Is it Rohs certified? conform to - incompatible incompatible incompatible conform to
Maker Microchip - Microchip Microchip - Microchip
package instruction TFQFP, - TFQFP, TQFP48,.35SQ TFQFP, TFQFP, TFQFP,
Reach Compliance Code compli - compli compliant compli compli
ECCN code EAR99 - EAR99 EAR99 EAR99 EAR99
Adjustable threshold YES - YES YES YES YES
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT - POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code S-PQFP-G48 - S-PQFP-G48 S-PQFP-G48 S-PQFP-G48 S-PQFP-G48
JESD-609 code e3 - e0 e0 e0 e3
length 7 mm - 7 mm 7 mm 7 mm 7 mm
Humidity sensitivity level 3 - 3 3 3 3
Number of channels 1 - 1 1 1 1
Number of functions 2 - 2 2 2 2
Number of terminals 48 - 48 48 48 48
Maximum operating temperature 70 °C - 70 °C 70 °C 70 °C 70 °C
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TFQFP - TFQFP TFQFP TFQFP TFQFP
Package shape SQUARE - SQUARE SQUARE SQUARE SQUARE
Package form FLATPACK, THIN PROFILE, FINE PITCH - FLATPACK, THIN PROFILE, FINE PITCH FLATPACK, THIN PROFILE, FINE PITCH FLATPACK, THIN PROFILE, FINE PITCH FLATPACK, THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius) 260 - 240 240 240 260
Certification status Not Qualified - Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.2 mm - 1.2 mm 1.2 mm 1.2 mm 1.2 mm
Maximum supply voltage (Vsup) 3.6 V - 3.6 V 3.6 V 3.6 V 3.6 V
Minimum supply voltage (Vsup) 3 V - 3 V 3 V 3 V 3 V
Nominal supply voltage (Vsup) 3.3 V - 3.3 V 3.3 V 3.3 V 3.3 V
surface mount YES - YES YES YES YES
Temperature level COMMERCIAL - COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
Terminal surface MATTE TIN - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) TIN LEAD MATTE TIN
Terminal form GULL WING - GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.5 mm - 0.5 mm 0.5 mm 0.5 mm 0.5 mm
Terminal location QUAD - QUAD QUAD QUAD QUAD
Maximum time at peak reflow temperature 40 - 30 30 30 40
width 7 mm - 7 mm 7 mm 7 mm 7 mm
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