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MIC2580

PCI Hot Swap Controller

Status: End of Life

Features:

  • PCI hot-plug and CompactPCI™ hot-swap support
  • +12V, +5V, +3.3V, and -12V power supply control
  • Circuit breaker function to protect system
  • Programmable slew rate control for all supplies
  • Foldback current-limiting
  • +5V and +3.3V programmable current-limit thresholds
  • Undervoltage and overcurrent diagnostic outputs
  • Deglitch filters on diagnostic fault outputs
  • Integrated +12V and -12V MOSFET switches
  • Integrated high-side drivers for 3.3V and 5V external switches
  • Precharge supply for CompatPCI™ I/O termination
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MIC2580 is a hot-swap controller that provides for safe and orderly insertion and removal of PCI based adapter cards from a PCI hot-plug compliant system backplane or CompactPCI™ system. The MIC2580 incorporates a circuit breaker function that protects all four supplies (+12V, +5V, +3.3V, and -12V) upon an overcurrent fault condition. Current foldback limiting prevents large transient currents caused by plugging adapter cards into live backplanes, such as in a CompactPCI system. A programmable slew-rate control limits high inrush currents to all loads that occur when power is applied to large capacitive loads. Voltage supervisory functions for all four power supplies are provided by “power good” (/PWRGD) and “overcurrent fault” (/FAULT) diagnostic outputs. Power good and overcurrent fault include deglitch filters to prevent nuisance tripping. Power good is active when all four supplies are within tolerance. Fault (/FAULT) goes active upon overcurrent or overtemperature conditions. The on-off control input (/ON) is used to cycle power to the adapter card.

Additional Features
    • PCI hot-plug and CompactPCI™ hot-swap support
    • +12V, +5V, +3.3V, and -12V power supply control
    • Circuit breaker function to protect system
    • Programmable slew rate control for all supplies
    • Foldback current-limiting
    • +5V and +3.3V programmable current-limit thresholds
    • Undervoltage and overcurrent diagnostic outputs
    • Deglitch filters on diagnostic fault outputs
    • Integrated +12V and -12V MOSFET switches
    • Integrated high-side drivers for 3.3V and 5V external switches
    • Precharge supply for CompatPCI™ I/O termination
Parametrics
Name
Value
Product type
Low Voltage (<16V)
Latch off
Yes
FAULT
Yes
POR
Yes
# of PWRGD
2 Active Low
Foldback Current Limit
Yes
Θja (C/W)
83

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2580A-1.0YTS
N/A
0.247742
24
TSSOP
4.4mm
Matte Tin
e3
MIC2580A-1.0YTS-TR
N/A
0.218520
24
TSSOP
4.4mm
Matte Tin
e3
MIC2580A-1.6YTS
N/A
0.247742
24
TSSOP
4.4mm
Matte Tin
e3
MIC2580A-1.6YTS-TR
N/A
0.218520
24
TSSOP
4.4mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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