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LPY4150AL
MEMS motion sensor: dual-axis pitch and yaw ±1500 dps analog gyroscope
Features
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2.7 V to 3.6 V single-supply operation Wide operating temperature range (-40 °C to +85 °C) High stability over temperature Analog absolute angular-rate outputs Two separate outputs for each axis (1x and 4x amplified) Integrated low-pass filters Low power consumption Embedded power-down Embedded self-test Sleep mode High shock and vibration survivability ECOPACK® RoHS and “Green” compliant (see Section 6)
LGA-28 (4x5x1 mm)
The LPY4150AL has a full scale of ±1500 dps and is capable of detecting rates with a -3 dB bandwidth up to 140 Hz. The device includes a sensing element composed of a single driving mass, kept in continuous oscillation and capable of reacting, based on the Coriolis principle, when an angular rate is applied. A CMOS IC provides the measured angular rate to the external world through an analog output voltage, allowing high levels of integration and production trimming to better match sensing element characteristics. ST's family of gyroscopes leverages on the mature and robust manufacturing process already used for the production of micro-machined accelerometers. ST is already in the field with several hundred million sensors which have received excellent acceptance from the market in terms of quality, reliability and performance. The LPY4150AL is available in a plastic land grid array (LGA) package, which ST successfully pioneered for accelerometers.Today ST has the widest manufacturing capability and strongest expertise in the world for production of sensors in plastic LGA packages.
Applications
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Gaming applications Pointing devices, remote and game controllers Motion control with user interface Industrial and robotics
Description
The LPY4150AL is a low-power dual-axis micromachined gyroscope capable of measuring angular rate along pitch and yaw axes. 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 LPY4150AL LPY4150ALTR
Package LGA-28 (4x5x1) LGA-28 (4x5x1)
Packing Tray Tape and reel
October 2009
Doc ID 16581 Rev 1
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Contents
LPY4150AL
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Mechanical and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 2.2 Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 4
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 4.2 4.3 4.4 4.5 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Zero-rate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 High pass filter reset (HP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Sleep mode, self-test and power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 5.2 Output response vs. rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 7
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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LPY4150AL
Block diagram and pin description
1
Block diagram and pin description
Figure 1. Block diagram
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