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MIC2342

Dual -Slot PCI Express Hot-Plug Controller

Status: In Production

Features:

  • Supports two independent PCI Express slots
  • MAIN & AUX outputs are inter-dependent during AUX overcurrent conditions
  • 12V, 3.3V, and 3.3VAUX supplies supported per PCI Express Specification v1.0a, v.2.0
  • Integrated Power MOSFETS for 3.3VAUX rails
  • Standby Operation for Wake-on-LAN applications with low backfeed on Main +12V and +3.3V rails
  • Programmable gate voltage slew-rate control
  • Active current regulation controls inrush current
  • High accuracy Primary and Secondary Circuit Breaker Current-limit Thresholds
  • Dual-level, dual-speed fault detection for fast response without nuisance tripping
  • User-programmable Primary Overcurrent Detector
  • /PWRGD and Delayed /PWRGD (164 ms) Signal Outputs per slot
  • Separate /FAULT output signals for MAIN and AUX rails for each slot
  • Global Systems Power-is-Good Output
  • Both slots thermally isolated
  • Internally Debounced Plug-in Card Retention Switch Inputs per slot.
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MIC2342 is a dual-slot power controller supporting the power distribution requirements for Peripheral Component Interconnect Express (PCI Express®) Hot-Plug compliant systems. The MIC2342 provides complete power control support for two PCI Express slots, including the 3.3VAUX defined by the PCI Express standards. Support for the 12V, 3.3V, and 3.3VAUX supplies includes programmable gate voltage slew-rate control, voltage supervision, programmable current limit, and circuit breaker functions. These features provide comprehensive system protection and fault isolation. Additionally, in the event of an overcurrent fault on 3.3VAUX that "trips" the circuit breaker to cause the 3.3VAUX output to shut down, the MAIN outputs (3.3V and 12V) for the affected 3.3VAUX slot, A or B, will also be shut down. The MIC2341 controller provides truly independent output operation for MAIN and AUX.

Additional Features
    • Supports two independent PCI Express slots
    • MAIN & AUX outputs are inter-dependent during AUX overcurrent conditions
    • 12V, 3.3V, and 3.3VAUX supplies supported per PCI Express Specification v1.0a, v.2.0
    • Integrated Power MOSFETS for 3.3VAUX rails
    • Standby Operation for Wake-on-LAN applications with low backfeed on Main +12V and +3.3V rails
    • Electronic circuit breakers for each supply per slot
      • Programmable gate voltage slew-rate control
      • Active current regulation controls inrush current
    • High accuracy Primary and Secondary Circuit Breaker Current-limit Thresholds
    • Dual-level, dual-speed fault detection for fast response without nuisance tripping
    • User-programmable Primary Overcurrent Detector
    • /PWRGD and Delayed /PWRGD (164 ms) Signal Outputs per slot
    • Separate /FAULT output signals for MAIN and AUX rails for each slot
    • Global Systems Power-is-Good Output
    • Both slots thermally isolated
    • Internally Debounced Plug-in Card Retention Switch Inputs per slot.
Parametrics
Name
Value
Product type
Compact-PCI/PCI-X/PCI-Express
Latch off
Yes
FAULT
4
# of PWRGD
4
Θja (C/W)
76.8

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
MIC2342-2YTQ
0.125200
0.852000
48
TQFP
7x7x1.0mm
Matte Tin
e3
MIC2342-2YTQ-TR
0.125200
0.738000
48
TQFP
7x7x1.0mm
Matte Tin
e3
MIC2342R-2YTQ
0.125200
0.852000
48
TQFP
7x7x1.0mm
Matte Tin
e3
MIC2342R-2YTQ-TR
0.125200
0.738000
48
TQFP
7x7x1.0mm
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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