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Part Number: MIC2085
Description: The MIC2085 and MIC2086 are single channel positive voltage hot swap controllers designed to allow the safe insertion o...
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MIC2085
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DataSheet
General Description
MIC2085 General Description
The MIC2085 and MIC2086 are single channel positive voltage hot swap controllers designed to allow the safe insertion of boards into live system backplanes. The MIC2085 and MIC2086 are available in 16-pin and 20-pin QSOP packages, respectively. Using a few external components and by controlling the gate drive of an external N-Channel MOSFET device, the MIC2085/86 provide inrush current limiting and output voltage slew rate control in harsh, critical power supply environments. Additionally, a circuit breaker function will latch the output MOSFET off if the current limit threshold is exceeded for a programmed period of time. The devices' array of features provide a simplified yet robust solution for many network applications in meeting the power supply regulation requirements and affords protection of critical downstream devices and components.
All support documentation can be found on Micrel's web site at www.micrel.com.
MIC2085 Maximum Ratings
(All voltages are referred to GND)
Supply Voltage (VCC) ................................. 0.3V to 33V
SENSE Pin .......................................0.3V to VCC + 0.3V
GATE Pin .................................................... 0.3V to 22V
ON, DIS, /POR, PWRGD, /FAULT,
COMP+, COMP, COMPOUT ...................... 0.3V to 20V
CRWBR, FB, OV, REF..................................... 0.3V to 6V
Maximum Currents
Digital Output Pins .................................................10mA
(/POR, /FAULT, PWRGD, COMPOUT)
DIS Pin ...................................................................30mA
ESD Rating:
Human Body Model ............................................ 2kV
Machine Model ..................................................200V
Supply Voltage (VCC) ................................. 0.3V to 33V
SENSE Pin .......................................0.3V to VCC + 0.3V
GATE Pin .................................................... 0.3V to 22V
ON, DIS, /POR, PWRGD, /FAULT,
COMP+, COMP, COMPOUT ...................... 0.3V to 20V
CRWBR, FB, OV, REF..................................... 0.3V to 6V
Maximum Currents
Digital Output Pins .................................................10mA
(/POR, /FAULT, PWRGD, COMPOUT)
DIS Pin ...................................................................30mA
ESD Rating:
Human Body Model ............................................ 2kV
Machine Model ..................................................200V
MIC2085 Features
• MIC2085: Pin for pin functional equivalent to the LTC1642
• 2.3V to 16.5V supply voltage operation
• Surge voltage protection to 33V
• Operating temperature range 40°C to 85°C
• Active current regulation limits inrush current independent of load capacitance
• Programmable inrush current limiting
• Analog foldback current limiting
• Electronic circuit breaker
• Dual-level overcurrent fault sensing
• Fast response to short circuit conditions (< 1s)
• Programmable output undervoltage detection
• Undervoltage lockout protection
• Power-on reset (MIC2085/86) and power-good (MIC2086) status outputs
• /FAULT status output
• Driver for SCR crowbar on overvoltage
• 2.3V to 16.5V supply voltage operation
• Surge voltage protection to 33V
• Operating temperature range 40°C to 85°C
• Active current regulation limits inrush current independent of load capacitance
• Programmable inrush current limiting
• Analog foldback current limiting
• Electronic circuit breaker
• Dual-level overcurrent fault sensing
• Fast response to short circuit conditions (< 1s)
• Programmable output undervoltage detection
• Undervoltage lockout protection
• Power-on reset (MIC2085/86) and power-good (MIC2086) status outputs
• /FAULT status output
• Driver for SCR crowbar on overvoltage
MIC2085 Typical Application
• RAID systems
• Cellular base stations
• LAN servers
• WAN servers
• InfiniBand™ Systems
• Industrial high side switching
• Cellular base stations
• LAN servers
• WAN servers
• InfiniBand™ Systems
• Industrial high side switching
MIC2085 Connection Diagram
MIC2085
PDF/DataSheet Download
- Datasheet: MIC2085
- File Size: 420948 KB
- Manufacturer: MICREL [Micrel Semiconductor]
- Click here to Download
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