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.
FEATURES
•
•
•
•
•
•
•
Available in 15 PSI, 30 PSI, 60 PSI, and
100 PSI ranges
Wide Temperature range (-40 to
+125°
C)
Suitable for Automated Assembly
Extremely Low Cost
Small foot-print (0.16” × 0.20”) 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 00 7_07
©
2004-2007
Silicon Microstructures, Inc.
♦
1701 McCarthy Blvd.
♦
Milpitas, CA 95035 USA
Tel: 408-577-0100
♦
Fax: 408-577-0123
♦
Sales@Si-Micro.Com
♦
WWW.Si-Micro.Com
SM5420
Low-Cost,
SO-8 Packaged Pressure Sensor
CHARACTERISTICS FOR SM5420 -
SPECIFICATIONS
All parameters are measured at 5.000V supply at room temperature, unless otherwise specified.
Min.
Excitation Voltage
Excitation Current
Span (FS Range), PSI (kPa)
15 (103)
30 (207)
60 (414)
100 (689)
Zero Offset
TC Span
TC Offset
TC Resistance
Linearity
Bridge Impedance
Input Capacitance
Proof Pressure
Burst Pressure
Operating Temperature
Storage Temperature
0
0
95
65
65
65
-35
-24
-7
+24
-0.20
4
3X
5X
-40
-40
Typ.
5.0
1.5
127
100
100
100
-19
-1
+27.5
-0.07
5
<2
Max.
10
2.5
160
135
135
135
35
-15.5
+7
+33
+0.20
6
Units
V
mA
mV
mV
mV
mV
mV
%FS/100°
C
%FS/100°
C
%/100°
C
%FS
kΩ
pF
Rated FS
Rated FS
°
C
°
C
Notes
1
1
2, 3
2, 3
2, 3
4
2
2
2
2
2
+125
+150
Notes:
1. Bridge may be driven with positive or negative excitation; positive output for positive pressure applied to circuit side
of die when bridge is driven with positive voltage.
2. Tested on sample basis.
3. Measured from 0 to 70°
C
4. Defined as best straight line fit.
5. All parts are gelled.
PIN OUT
1
2
3
4
NC
Out+
NC
-IN
8
7
6
5
+IN
NC
Out-
NC
8
ORDERING INFORMATION:
Model Number
Pressure
Shipping
Type
2
6
H
configuration
SM5420 - XXX - A - P - T
Pressure
Range
Pressure Range = 015, 030, 060, or 100
for 15, 30, 60, or 100 PSI respectively
Pressure Type = A (absolute only)
Cap Type = H (hole) or P (port)
Shipping = T (tape) or S (IC stick)
Cap
Type
4
SM5420
Pin-out
P
configuration
Rev 00 7_07
©
2004-2007
Silicon Microstructures, Inc.
♦
1701 McCarthy Blvd.
♦
Milpitas, CA 95035 USA
Tel: 408-577-0100
♦
Fax: 408-577-0123
♦
Sales@Si-Micro.Com
♦
WWW.Si-Micro.Com
SM5420
Low-Cost,
SO-8 Packaged Pressure Sensor
NOTICE
Information in this document is provided solely to enable software and system implementers to use Silicon
Microstructures, Inc. products and/or services. No express or implied copyright licenses are granted hereunder to design
or fabricate any silicon-based microstructures based on the information in this document.
Silicon Microstructures, Inc. makes no warranty, representation, or guarantee regarding the suitability of its products for
any particular purpose, nor does Silicon Microstructures, Inc. assume any liability arising out of the application or use of
any product or silicon-based microstructure, and specifically disclaims any and all liability, including without limitation
consequential or incidental damages. Parameters that may be provided in Silicon Microstructures, Inc. data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. Silicon
Microstructures, Inc. assumes no responsibility for any inaccuracies and/or errors in this publication. All operating
parameters, must be validated for each customer application by customer’s technical experts. Silicon Microstructures,
Inc. does not convey any license under its patent rights nor the rights of others. Silicon Microstructures, Inc. makes no
representation that the circuits are free of patent infringement. Silicon Microstructures, Inc. products are not designed,
intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the Silicon Microstructures, Inc.
product could create a situation where personal injury or death may occur. Should Buyer purchase or use Silicon
Microstructures products for any such unintended or unauthorized application, Buyer shall indemnify and hold Silicon
Microstructures, Inc. and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs,
damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or
death associated with such unintended or unauthorized use, even if such claim alleges that Silicon Microstructures, Inc.
was negligent regarding the design or manufacture of the part. Silicon Microstructures, Inc. reserves the right to make
changes without further notice to any products herein
Silicon Microstructures, Inc.
TM
and the Silicon Microstructures, Inc. logo are trademarks of Silicon Microstructures, Inc. All
other service or product names are the property of their respective owners.
© Silicon Microstructures, Inc. 2001-2007. All rights reserved.
Rev 1.4 6_07
Rev 00 7_07
©
2004-2007
Silicon Microstructures, Inc.
♦
1701 McCarthy Blvd.
♦
Milpitas, CA 95035 USA
Tel: 408-577-0100
♦
Fax: 408-577-0123
♦
Sales@Si-Micro.Com
♦
WWW.Si-Micro.Com
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