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X80013Q32I Datasheet

  • X80013Q32I

  • Penta-Power Sequence Controller with Hot swap and System Man...

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X80010, X80011, X80012, X80013
Data Sheet
January 13, 2005
FN8149.0
PRELIMINARY
Penta-Power Sequence Controller
with Hot swap and System Management
The X80010, X80011, X80012, X80013 contain three major
functions: a power sequencing controller, a hotswap
controller, and systems management support.
The power sequencer controller time sequences up to five
DC/DC modules. The device allows various DC/DC power
sequencing configurations, either parallel or relay modes.
The power good, enable, and voltage good signals provide
for flexible DC/DC timing configurations. Each voltage
enable signal has a built-in delay while additional delay can
be added with simple external passive components.
The hot swap controller allows a board to be safely inserted
and removed from a live backplane without turning off the
main power supply. The X80010 family of devices offers a
modular, power distribution approach by providing flexibility
to solve the hotswap and power sequencing issues for
insertion, operations, and extraction. Hardshort Detection
and Retry with Delay, Noise filtering, Insertion Overcurrent
Bypass, and Gate Current selection are some of the
integrated features of the device. During insertion, the gate
of an external power MOSFET is clamped low to suppress
contact bounce. The undervoltage/overvoltage circuits and
the power on reset circuitry suppress the gate turn on until
the mechanical bounce has ended. The X80010 turns on the
gate with a user set slew rate to limit the inrush current and
incorporates an electronic circuit breaker set by a sense
resistor. After the load is successfully charged, the PWRGD
signal is asserted; indicating that the device is ready to
power sequence the DC/DC power bricks.
Systems management function provides a reset signal
indicating that the power good and all the voltage good
signals are active. The reset signal is asserted after a wait
state delay. This signal is used to coordinate the hotswap
and DC/DC module latencies during power up to avoid
"power hang up". In addition, the CPU host can initiate soft
insertion or DC voltage module re-sequencing.
Features
鈥?Integrates Three Major Functions
- Power Sequencing
- Hot Swap Controller
- System Management Functions
鈥?Penta-Power Sequencing
- Sequence up to 5 DC/DC converters.
- Four independent voltage enable pins
- Four time delay circuits
- Soft Power Sequencing - MRC pin restarts sequence
without power cycling.
鈥?Hot Swap Controller
- Programmable overvoltage and undervoltage protection
- Undervoltage lockout for battery/redundant supplies
- Electronic circuit breaker - Overcurrent Detection and
Gate Shut-off
- Overcurrent limit during Insertion
- Hardshort retry with retry failure flag
- Selectable gate current using IGQ pins (10, 70, 150碌A(chǔ))
- MRH pin controls board insertion/extraction.
- Typically operates from -30V to -80V. Tolerates
transients to -200V (limited by external components)
鈥?System Management
- Reset output, with delay, holds off host until all supplies
are good
- Host control of reinsertion with MRH input
- Host control of resequencing using MRC input
鈥?Available packages
- 32-lead Quad No-Lead Frame (QFN)
Applications
鈥?-48V Hot Swap Power Backplane/Distribution Central
Office, Ethernet for VOIP
鈥?Card Insertion Detection
鈥?Power Sequencing DC/DC/Power Bricks
鈥?IP Phone Applications
鈥?Databus Power Interfacing
鈥?Custom Industrial Power Backplanes
鈥?Distributed Power Systems
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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