STEVAL-MKI042V1 STMicroelectronics, STEVAL-MKI042V1 Datasheet

EVAL BOARD FOR LPR503AL

STEVAL-MKI042V1

Manufacturer Part Number
STEVAL-MKI042V1
Description
EVAL BOARD FOR LPR503AL
Manufacturer
STMicroelectronics
Series
MEMSr

Specifications of STEVAL-MKI042V1

Sensor Type
Gyroscope, 2 Axis
Sensing Range
±30°/sec
Interface
Analog
Sensitivity
33.3mV/°/s
Embedded
No
Utilized Ic / Part
LPR503AL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Other names
497-10364
Features
Applications
Description
The LPR503AL is a low-power dual-axis
micromachined gyroscope capable of measuring
angular rate along pitch and roll axes.
It provides excellent temperature stability and
high resolution over an extended operating
temperature range (-40 °C to +85 °C).
Table 1.
July 2009
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
2.7 V to 3.6 V single-supply operation
Wide operating temperature range
(-40 °C to +85 °C)
High stability overtemperature
Analog absolute angular-rate output
Two separate outputs for each axis
(1x and 4x amplified)
Integrated low-pass filters
Low power consumption
Embedded power-down
Embedded self-test
High shock and vibration survivability
ECOPACK
(see
Image stabilization for DVC and DSC
Image stabilization for camera phones
Motion controlled user interface
GPS navigation systems
LPR503ALTR
Order code
LPR503AL
Section
Device summary
®
RoHS and “Green” compliant
5)
Temperature range (°C)
dual axis pitch and roll ±30°/s analog gyroscope
-40 to +85
-40 to +85
Doc ID 15810 Rev 2
The LPR503AL has a full scale of ±30 °/s and is
capable of detecting rates with a -3 dB bandwidth
up to 140 Hz. The gyroscope is the combination
of one actuator and one accelerometer integrated
in a single micromachined structure.
It includes a sensing element composed by single
driving mass, kept in continuous oscillating
movement and able to react when an angular rate
is applied based on the Coriolis principle.
A CMOS IC provides the measured angular rate
to the external world through an analog output
voltage, allowing high level of integration and
production trimming to better match sensing
element characteristics.
ST’s gyroscope family leverages on robust and
mature manufacturing process already used for
the production of micromachined accelerometers.
ST is already in the field with several hundreds
million sensors with excellent acceptance from
the market in terms of quality, reliability and
performance.
LPR503AL is provided in plastic land grid array
(LGA) package. Several years ago ST pioneered
successfully the usage of this package for
accelerometers. Today ST has the widest
manufacturing capability and strongest expertise
in the world for production of sensor in plastic
LGA package.
LGA-16 (5x5x1.5)
LGA-16 (5x5x1.5)
Package
MEMS motion sensor:
LGA-16L (5x5x1.5mm)
LPR503AL
Tape and reel
Packing
Tray
Preliminary data
www.st.com
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STEVAL-MKI042V1 Summary of contents

Page 1

Features ■ 2 3.6 V single-supply operation ■ Wide operating temperature range (-40 °C to +85 °C) ■ High stability overtemperature ■ Analog absolute angular-rate output ■ Two separate outputs for each axis (1x and 4x amplified) ■ ...

Page 2

Contents Contents 1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Pin ...

Page 3

LPR503AL 1 Block diagram and pin description Figure 1. Block diagram + Ω Ω Y REFERENCE 1.1 Pin description Figure 2. Pin connection + Ω Y (TOP VIEW) DIRECTION OF THE DETECTABLE ANGULAR RATES CHARGE DEMODULATOR AMPLIFIER + ...

Page 4

Block diagram and pin description Table 2. Pin description Pin # 14,15 16 4/12 Pin name GND 0V supply voltage FILTVDD PLL filter connection pin #2 VCONT ...

Page 5

LPR503AL 2 Mechanical and electrical specifications 2.1 Mechanical characteristics Table 3. Mechanical characteristics @ Vdd = °C unless otherwise noted Symbol Parameter FSA Measurement range FS SoA (3) Sensitivity So Sensitivity change vs SoDr temperature ...

Page 6

Mechanical and electrical specifications 2.2 Electrical characteristics Table 4. Electrical characteristics @ Vdd =3 V, T=25 °C unless otherwise noted Symbol Parameter Vdd Supply voltage Idd Supply current Supply current in IddPdn power-down mode V Self-test input ST V Power-down ...

Page 7

LPR503AL 3 Terminology 3.1 Sensitivity An angular rate gyroscope is a device that produces a positive-going output voltage for counterclockwise rotation around the sensitive axis considered. Sensitivity describes the gain of the sensor and can be determined by applying a ...

Page 8

Application hints 4 Application hints Figure 3. LPR503AL electrical connections and external component values C2 10nF 10kOhm R1 Not amplified filtered output Y Recomeded Low-pass filter Typical values 1MOhm C1 = 4.7 µ 33kOhm C2 = ...

Page 9

LPR503AL 4.1 Output response vs. rotation Figure 4. Output response vs. rotation + Ω Y Steady State position: 4xOUTX = 4xOUTY = 1.23V OUTX = OUTY = 1.23V 4.2 Soldering information The LGA package is compliant with the ECOPACK It ...

Page 10

Package information 5 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK ...

Page 11

LPR503AL 6 Revision history Table 6. Document revision history Date 04-Jun-2009 06-Jul-2009 Revision 1 Initial release Small text changes to improve readability. 2 Table 4 Updated Doc ID 15810 Rev 2 Revision history Changes 11/12 ...

Page 12

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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