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Negative Voltage Hot Swap Controller
with Active Power Filter
Features
Live Insertion and Removal Power Manager
Adjustable Power-on slew rate
Autodetect of Load Open Circuit or -VIN
Disconnection
Controlled Time-Delay
Operates from 9 V to External MOSFET Voltage
Limit
Fault Indication Output (microprocessor reset).
Board Insertion/Removal Detector Input
Protection During Turn-On
Low frequency Power Active Filter
Adjustable Electronic Circuit Breaker
Vin undervoltage with GSNSin input
Applications
Arcless card insertion and removal
Central Office Switching Hardware
Circuit Boards From -48 V Distributed Power
Supplies
Circuit Board Power Manager and Noise Filter
Circuit Board Hot Swap Protector and Manager
Electronic Circuit Breaker
Wireless Local Loop Antennas
Cable TV Antenna
Description
The IXHQ100 is a live insertion and removal hot swap
controller with a built-in power noise filter. It incorpo-
rates all the active circuitry necessary to protect circuit
boards during live insertion or removal (insertion or
removal when the system power is active). Additionally,
the IXHQ100 incorporates two unique features: power
active filter for powerline noise suppression and power
auto-disconnect detector which eliminates the need of
additional staggered pins.
The IXHQ100 shunt regulator ensures a wide operating
voltage range (with the external MOSFET breakdown
voltage as limit). The active power filter reduces power
source output impedance, producing "clean" load
power. The IXHQ100 allows continuous load current
rise adjustments, presettable maximum current limits,
and user selectable fault indication turn off times for
resetting µPs and other synchronous board level sys-
tems. For added flexibility, GSNSin pin is available to
implement either circuit board insertion/removal detec-
tion or ground detection.
US Patents Pending.
Typical Application with Auto-Disconnect Detector
CAUTION: These devices are
sensitvie to electrostatic discharge;
take caution when handling and
assembling this component.
Figure 1
IXYS reserves the right to change limits, test conditions and dimensions.
Copyright © IXYS CORPORATION 2000
www.ixys.com
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98716 (08/14/00)