SM5420 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Low-Cost, SO-8 Packaged Pressure Sensor

SILICON
MICROSTRUCTURES
INCORPORATED
SM5420
Low-Cost,
SO-8 Packaged Pressure Sensor
• For High-Volume Applications
• Ultra-Small, Low Cost OEM Pressure Package
DESCRIPTION
The SM5420 is a small outline SO-8 packaged
pressure sensor. The sensor uses SMI’s
SM5108 micromachined, piezoresistive
pressure sensing chip that has been optimized
to provide the highest possible accuracy for a
package of this size. This performance is
achieved through careful resistor placement
and mechanical configuration along with
advanced MEMS processing.
This sensor is intended for high volume
applications where cost is a critical factor,
such as consumer tire pressure gauges or
automotive tire pressure monitoring. The
SM5420 is available as an absolute pressure
sensor in full-scale ranges of 15 PSI, 30 PSI,
60 PSI, and 100 PSI. It is designed to be
surface-mounted on ceramic or PC board
substrates by high-volume OEM
manufacturers.
The SM5420 is available in a ported
configuration to allow positive positioning of a
pressure source over the inlet or in a non-
ported configuration to be used for sensing
general environmental pressures or with an o-
ring seal. The port position has been chosen
to minimize the chance of pressure pulses
directly impacting the face of the sensor die for
added long-term reliability in hostile
environments. The part comes with gel over
the die as standard; the part can be ordered
without gel in high volumes where the
maximum stability is required, such as in
barometric, weather station sensing
applications. Please contact SMI for more
information.
The SM5420 is shipped either in IC tubes or in
tape-and-reel.
Custom pressure ranges are available in high-
volume applications.
FEATURES
• Available in 15 PSI, 30 PSI, 60 PSI, and
100 PSI ranges
• Wide Temperature range (-40 to +125 ^oC)
• Suitable for Automated Assembly
• Extremely Low Cost
• Small foot-print (0.16 in X 0.20 in)
package
• Constant Current or Constant Voltage
Drive
• High millivolt Output
APPLICATIONS
• Automotive Tire Pressure Monitoring
• Engine Control
• Barometric Sensing
• Altitude Correction Detection
• Pneumatic Gauges
• Hand-held Meters
• Home Appliances
Minimum order quantities apply to this
product.
Rev 1.2 4_05
 2004 - 2005
Silicon Microstructures, Inc. ♦ 1701 McCarthy Blvd. ♦ Milpitas, CA 95035 USA
Tel: [phone] ♦ Fax: [phone] ♦ [e-mail] ♦ www.si-micro.com