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MIC2595

Negative Voltage Hot-Swap Controller

Status: Not Recommended for new designs

Features:

  • Provides safe insertion and removal from live -48V (nominal) backplanes
  • Operates from -19V to -80V
  • Fast responding circuit breaker (<1µs) to short circuit conditions
  • User-programmable overcurrent detector response time
  • Output latch OFF (MIC2589/MIC2595)
  • Output auto-retry (MIC2589R/MIC2595R)
  • Active current regulation to control inrush currents
  • Programmable undervoltage and overvoltage lockouts (MIC2589/MIC2589R)
  • Programmable UVLO hysteresis (MIC2595/MIC2595R)
  • Active-HIGH (-1)
  • Active-LOW (-2)
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MIC2589 and MIC2595 are single-channel, negative voltage hot swap controllers designed to address the need for safe insertion and removal of circuit boards into "live" system backplanes, while using few external components. The MIC2589/MIC2589R and the MIC2595/MIC2595R are each available in 14-pin SOIC packaging and work in conjunction with an external N-Channel MOSFET for which the gate drive is controlled to provide inrush current limiting and output voltage slew-rate control. Overcurrent fault protection is also provided via a programmable overcurrent threshold and filter. Very fast fault response is provided to ensure that system power supplies maintain regulation even during output short circuits. These controllers offer two responses to a circuit breaker fault condition: the MIC2589 and MIC2595 latch the circuit breaker's output off when the overcurrent threshold interval is exceeded and the overcurrent filter times out while the MIC2589R and MIC2595R automatically attempt to restart at a fixed duty cycle after a current limit fault. A primary Power-Good signal and two secondary (delayed and staggered) Power-Good signals are provided to indicate that the output voltage is within its valid operating range. These signals can be used to perform an all-at-once or a sequenced enabling of one or more DC-DC power modules.

Additional Features
    • Provides safe insertion and removal from live -48V (nominal) backplanes
    • Operates from -19V to -80V
    • Fast responding circuit breaker (<1µs) to short circuit conditions
    • User-programmable overcurrent detector response time
    • Electronic circuit breaker function:
      • Output latch OFF (MIC2589/MIC2595)
      • Output auto-retry (MIC2589R/MIC2595R)
    • Active current regulation to control inrush currents
    • Programmable undervoltage and overvoltage lockouts (MIC2589/MIC2589R)
    • Programmable UVLO hysteresis (MIC2595/MIC2595R)
    • Staggered 'Power-Good' output signals provide load sequencing
      • Active-HIGH (-1)
      • Active-LOW (-2)
Parametrics
Name
Value
Product type
High Voltage (>16V)
Latch off
Yes
# of PWRGD
3 Active High
Θja (C/W)
120

Documents

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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
MIC2595-2YM
0.143200
0.280702
14
SOIC
.150In(3.90mm)
Matte Tin
e3
MIC2595-2YM-TR
0.143200
0.325000
14
SOIC
.150In(3.90mm)
Matte Tin
e3
MIC2595-1YM
0.143200
0.280702
14
SOIC
.150In(3.90mm)
Matte Tin
e3
MIC2595-1YM-TR
0.143200
0.325000
14
SOIC
.150In(3.90mm)
Matte Tin
e3
MIC2595R-1YM
0.143200
0.280702
14
SOIC
.150In(3.90mm)
Matte Tin
e3
MIC2595R-1YM-TR
0.143200
0.325000
14
SOIC
.150In(3.90mm)
Matte Tin
e3
MIC2595R-2YM
0.143200
0.280702
14
SOIC
.150In(3.90mm)
Matte Tin
e3
MIC2595R-2YM-TR
0.143200
0.325000
14
SOIC
.150In(3.90mm)
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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