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LY550ALH Dataheets PDF



Part Number LY550ALH
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description MEMS motion sensor:high performance +-500 /s analog yaw-rate gyroscope
Datasheet LY550ALH DatasheetLY550ALH Datasheet (PDF)

www.DataSheet4U.com LY550ALH MEMS motion sensor: high performance ±500 °/s analog yaw-rate gyroscope Preliminary data Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 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 (1x and 4x amplified) Integrated low-pass filters Low power consumption Embedded power-down Embedded self-test High shock and vibration survivability ECOPACK® RoHS and “.

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www.DataSheet4U.com LY550ALH MEMS motion sensor: high performance ±500 °/s analog yaw-rate gyroscope Preliminary data Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 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 (1x and 4x amplified) Integrated low-pass filters Low power consumption Embedded power-down Embedded self-test High shock and vibration survivability ECOPACK® RoHS and “Green” compliant (see Section 5) LGA-16L (5x5x1.5mm) The LY550ALH has a full scale of ±500 °/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 continuos 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. LY550ALH 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. Package LGA-16 (5x5x1.5) LGA-16 (5x5x1.5) Packing Tray Tape and reel Applications ■ ■ ■ ■ Gaming applications Pointing devices, remote and game controllers Motion control with user interface Industrial and robotics Description The LY550ALH is a low-power single-axis micromachined gyroscope capable of measuring angular rate along yaw axis. It provides excellent temperature stability and high resolution over an extended operating temperature range (-40 °C to +85 °C). Table 1. Device summary Temperature range (°C) -40 to +85 -40 to +85 Order code LY550ALH LY550ALHTR July 2009 Doc ID 15802 Rev 2 1/12 www.st.com 12 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. www.DataSheet4U.com Contents LY550ALH Contents 1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Mechanical and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 2.2 2.3 Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 3.2 3.3 3.4 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Zero-rate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 High pass filter reset (HP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1 4.2 Output response vs. rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2/12 Doc ID 15802 Rev 2 www.DataSheet4U.com LY550ALH Block diagram and pin description 1 Block diagram and pin description Figure 1. Block diagram DRIVING MASS GAIN 4x Feedback loop 4xOUT Z (amplified) +Ω z + CHARGE AMPLIFIER SWITCHED CAPACITOR LOW-PASS FILTER DEMODULATOR Optional LP Filter Not amplified filtered output Z - REFERENCE TRIMMING CIRCUITS CLOCK PHASE GENERATOR 1.1 Pin description Figure 2. Pin connection Res +Ω z HP PD ST OUTZ (TOP VIEW) DIRECTION OF THE DETECTABLE ANGULAR RATE 14 13 Res 16 1 GND FILTVDD VCONT Res 4xINZ 9 8 4xOUTZ Vref Vdd 5 6 Res Res (BOTTOM VIEW) Doc ID 15802 Rev 2 3/12 www.DataSheet4U.com Block diagr.


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