PI2001 Datasheet, PDF (1/23 Pages) Vicor Corporation – Universal Active ORing Controller IC

PI2001
Cool-ORing^TM Series
Universal Active ORing Controller IC
Description
The PI2001 Cool-ORing^TM solution is a universal
high-speed Active ORing controller IC designed for
use with N-channel MOSFETs in redundant power
system architectures. The PI2001 Cool-ORing
controller enables an extremely low power loss
solution with fast dynamic response to fault
conditions, critical for high availability systems. The
PI2001 controls single or parallel MOSFETs to
address Active ORing applications protecting
against power source failures. The PI2001 can be
used in either high-side or low-side Active ORing
applications and a master/slave feature allows the
paralleling of IC/MOSFET chipsets for high current
Active ORing.
The gate drive output turns the MOSFET on in
normal steady state operation, while achieving high-
speed turn-off during input power source fault
conditions, that cause reverse current flow, with
auto-reset once the fault clears. The MOSFET
drain-to-source voltage is monitored to detect
normal forward, excessive forward, light load and
reverse current flow. The PI2001 provides an active
low fault flag output to the system during excessive
forward current, reverse current, light load, over-
voltage, under-voltage and over-temperature fault
conditions. There is an internal shunt regulator at
the VC input for high voltage applications and the
under-voltage and over-voltage thresholds are
programmable via external resistor dividers.
Typical Applications:
Features
• Fast Dynamic Response to Power Source
failures, with 160ns reverse current turn-off
delay time
• 4A gate discharge current
• Accurate MOSFET drain-to-source voltage
sensing to indicate system level fault conditions
• Programmable under & over-voltage detection
• Over temperature fault detection
• Adjustable reverse current blanking timer
• 100V for 100ms operation in low side
applications
• Master/Slave I/O for paralleling (TDFN only)
• Active low fault flag output
Applications
• N+1 Redundant Power Systems
• Servers & High End Computing
• Telecom Systems
• Low & High-side Active ORing
• High current Active ORing
Package Information
The PI2001 is offered in the following packages:
• 10 Lead 3mm x 3mm TDFN package
• 8 Lead SOIC package
Figure 1a: PI2001 High Side Active ORing
Picor Corporation • picorpower.com
Figure 1b: PI2001 Low Side Active ORing
PI2001
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