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SMT4004
BLOCK
DIAGRAM
(PDF
pg
8)
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SMT4004
PINOUT
(PDF
pg
12)
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SMT4004: Quad Trakking™ Power Supply Manager
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FEATURES
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Programmable
Softstart, Tracking and
Voltage Monitoring
Functions
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Controls
4 Independent Supplies
Down to 0.9V
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Programmable
Bus-Side and Card-Side
UV and OV
Thresholds
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Guarantees
Differential Supply
Tracking
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Operates
From Any One of Four
Supply Voltages down to
2.7V
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Four
independent RST#s, two
IRQ#s, CROWBAR and
Circuit breaker
functions
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I2C
2-Wire Serial Bus
Interface for
Programming, Power
On/Off and Operational
Status
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256X8
Nonvolatile EEPROM
Memory Array
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APPLICATIONS
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Power
Supply Management
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Telecom/Datacom
Motherboards/Servers
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Mezzanine
Line Cards
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Compact
PCI™ Hot Swap
Control
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Network
Processors, DSPs,
ASICs
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INTRODUCTION
The SMT4004 is a fully
integrated programmable voltage
manager IC, providing supervisory
functions and tracking control
for up to four independent power
supplies. The four internal
managers perform the following
functions: monitor source
(bus-side) voltages for
under-voltage and over-voltage
conditions, monitor back end
(card-side) voltages for
under-voltage conditions, ensure
voltages to the card-side track
within specified parametric
limits, and provide status
information to a host
processor.
The SMT4004 incorporates
nonvolatile programmable circuits
for setting all monitored
thresholds for each manager.
Individual functions are also
programmable allowing Interrupts
or Reset conditions to be
generated by many combinations of
events. Also included are
nonvolatile fault status
registers and a 2K-bit (256 byte)
nonvolatile memory.
User
programming of configuration and
control values is simplified with
the interface adapter (SMX3200)
and Windows GUI software
obtainable from Summit
Microelectronics.
[continued
in the
PDF]
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ORDERING
INFORMATION
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SUMMIT
Microelectronics, Inc.
reserves the right to
make changes to the
products contained in
this publication in
order to improve design,
performance or
reliability. SUMMIT
Microelectronics, Inc.
assumes no
responsibility for the
use of any circuits
described herein,
conveys no license under
any patent or other
right, and makes no
representation that the
circuits are free of
patent infringement.
Charts and schedules
contained herein reflect
representative operating
parameters, and may vary
depending upon a user's
specific application.
While the information in
this publication has
been carefully checked,
SUMMIT Microelectronics,
Inc. shall not be liable
for any damages arising
as a result of any error
or omission.
SUMMIT Microelectronics,
Inc. does not recommend
the use of any of its
products in life support
or aviation applications
where the failure or
malfunction of the
product can reasonably
be expected to cause any
failure of either system
or to significantly
affect their safety or
effectiveness. Products
are not authorized for
use in such applications
unless SUMMIT
Microelectronics, Inc.
receives written
assurances, to its
satisfaction, that: (a)
the risk of injury or
damage has been
minimized; (b) the user
assumes all such risks;
and (c) potential
liability of SUMMIT
Microelectronics, Inc.
is adequately protected
under the
circumstances.
Revision 5.2 - This
document supersedes all
previous versions and
covers Status Tracking
Code 13 and Windows GUI
revision 3.3.0 and
later.
I2C is a
trademark of Philips
Corporation.
IBM, the IBM logo,
PowerPC, and PowerPC 750
are trademarks of
International Business
Machines in the United
States and/or other
countries.
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Copyright©1999- Summit
Microelectronics,
Inc.
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