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MIC2587

Positive High Voltage Hot-Swap Controller

Status: In Production

Features:

  • MIC2587: Pin-for-pin functional equivalent to the LT1641
  • Operates from +10V to +80V with 100V ABS MAX operation
  • Industrial temperature specifications at VCC = +24V and VCC = +48V
  • Programmable current limit with analog foldback
  • Active current regulation minimizes inrush current
  • Output latch off (MIC2587) or
  • Output auto-retry (MIC2587R)
  • Fast responding circuit breaker (< 2µs) to short circuit loads
  • Programmable input undervoltage lockout
  • Active-HIGH: MIC2587-1/MIC2587R-1
  • Active-LOW: MIC2587-2/MIC2587R-2
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MIC2587 and MIC2587R are single-channel positive voltage hot swap controllers designed to provide safe insertion and removal of boards for systems that require live (always-powered) backplanes. These devices use few external components and act as controllers for external N-channel power MOSFET devices to provide inrush current control and output voltage slew rate control. Overcurrent fault protection is provided via programmable analog foldback current limit circuitry equipped with a programmable overcurrent filter. These protection circuits combine to limit the power dissipation of the external MOSFET to insure that the MOSFET is in its SOA during fault conditions. The MIC2587 provides a circuit breaker function that latches the output MOSFET off if the load current exceeds the current limit threshold for the duration of the programmable timer. The MIC2587R provides a circuit breaker function that automatically attempts to restart power after a load current fault at a low duty cycle to prevent the MOSFET from overheating. Each device provides either an active-HIGH (-1BM) or an active-LOW (-2BM) "Power-is-Good" signal to indicate that the output load voltage is within tolerance.

Additional Features
    • MIC2587: Pin-for-pin functional equivalent to the LT1641
    • Operates from +10V to +80V with 100V ABS MAX operation
    • Industrial temperature specifications at VCC = +24V and VCC = +48V
    • Programmable current limit with analog foldback
    • Active current regulation minimizes inrush current
    • Electronic circuit breaker for overcurrent fault protection
      • Output latch off (MIC2587) or
      • Output auto-retry (MIC2587R)
    • Fast responding circuit breaker (< 2µs) to short circuit loads
    • Programmable input undervoltage lockout
    • Fault Reporting: Open-drain "Power-is-Good" output for enabling DC/DC converter(s)
      • Active-HIGH: MIC2587-1/MIC2587R-1
      • Active-LOW: MIC2587-2/MIC2587R-2
Parametrics
Name
Value
Product type
High Voltage (>16V)
Latch off
Yes
# of PWRGD
1 Active Low
Foldback Current Limit
Yes
Θja (C/W)
160

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2587R-2YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2587R-2YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2587R-1YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2587-1YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2587-1YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2587-2YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2587-2YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2587R-1YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
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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