|
|
San
Jose, CA -- September 03, 2003 -- Summit
Microelectronics has introduced the
SMT4004A,
a four-channel, truly differential tracking power
supply controller that is supplemented with
comprehensive monitoring and supervisory functions.
It adds to Summit's growing family of differential
tracking power supply controllers. Typical
applications for the device include server,
networking and communications equipment where
carrier-class availability (ie, 99.999% up-time) is
required.
The SMT4004A is configurable to differentially
track up to four power supplies, typically within
100mV of each other, as they follow a selected 100,
250, 500 or 1000 V/Sec internally generated ramp
during power up or power down. This assures that
processor, ASIC & FPGA multi-rail components in
the user's circuit do not latch up and experience
immediate destruction or later reliability
problems. The differential voltage between the two
supplies must be held to a small voltage (~300mV
for some advanced DSP devices).
Summit's tracking controllers provide true
differential tracking both on and off with
guaranteed matching between supplies to protect
devices. Approaches being touted in the market as
being tracking, but which really do not track, put
these sensitive circuits in jeopardy because they
do not monitor/control both the power source and
load of each supply.
The SMT4004A operates from any one of the four
power supply voltages down to 2.7V and can control
supplies as low as 0.9V. Four independent resets,
two interrupts, a forced shutdown circuit-breaker
function, and crowbar shutdown functions are
selectable and programmable by the user.
The SMT4004A provides 256 x 8 bits of nonvolatile
memory to the user, and is accessed using the
popular I2C bus to exercise complete control of the
board's power characteristics. The device can
therefore be programmed during production, or each
time the board is booted up, or during normal
operation "on the fly."
DESIGN SOFTWARE AND PROGRAMMER FOR PROTOTYPE
DEVELOPMENT
To speed user product development using the
SMT4004A and Summit's other programmable products,
Summit offers customers the SMX3200
programming system.
This is a complete development system that lets
designers easily manipulate the characteristics of
their system. The SMX3200 design kit includes
menu-driven Microsoft Windows® graphical user
interface (GUI) software to automate programming
tasks and also includes the necessary hardware to
interface to the parallel port of a laptop or
PC.
Once a user completes design and prototyping, the
SMX3200 automatically generates a HEX data file
that can be transmitted to Summit for review and
approval. Summit then assigns a unique customer
identification code to the HEX file and programs
the customer's production devices prior to final
electrical test operations. This ensures the device
will operate properly in the end application. The
design kit software can be downloaded today from
Summit's website (www.summitmicro.com).
DESIGN KIT FOR AUTOMATED PROTOTYPE
DEVELOPMENT
An evaluation card containing the SMT4004A
controller, support circuitry, and a port for "plug
and play" programming via the SMX3200 dongle
interface are available.
PRICING AND AVAILABILITY
Available in volume quantities today, the SMT4004A
comes in a 48-pin TQFP surface-mount package.
Commercial temperature range pricing is $8.65 in
10,000 unit quantities.
|
|
|
ABOUT
SUMMIT
Summit Microelectronics supplies semiconductors
that manage power functions in communications,
networking, storage and server systems. With
Summit's programmable analog technology, customers
can achieve carrier-class availability, the highest
standard of reliability available today for
telecommunications, data communications and
Internet applications.
Founded in 1997, Summit is headquartered in San
Jose, California. The Company is ISO 9001
certified.
|
