LSM303DLHTR STMicroelectronics

LSM303DLH Sensor module: 3-axis accelerometer and 3-axis magnetometer Features Analog supply voltage: 2.5 V to 3.3 V Digital supply voltage IOs: 1.8 V Power-down mode 3 magnetic field channels and 3 acceleration channels LGA-28L (5x5x1.0 mm) 1.3 to 8,1 gauss magnetic field full-scale and a 3D digital magnetic sensor. The various 2 g/4 g/8 g dynamically selectable full- sensing elements are manufactured using scale specialized micromachining processes, while the 16-bit data out IC interfaces are realized using a CMOS 2 I C serial interface technology that allows the design of a dedicated circuit which is trimmed to better match the 2 independent programmable interrupt sensing element characteristics. The generators for free-fall and motion detection LSM303DLH has a linear acceleration full-scale Embedded self-test of 2 g / 4 g / 8 g and a magnetic field full-scale Accelerometer sleep-to-wakeup function of 1.3 / 1.9 / 2.5 / 4.0 / 4.7 / 5,6 / 8.1 gauss, both fully selectable by the user. The 6D orientation detection 2 LSM303DLH includes an I C serial bus interface ECOPACK RoHS and Green compliant that supports standard mode (100 kHz) and fast (see Section 10) mode (400 kHz). The internal self-test capability allows the user to check the functioning of the whole module in the final application. The system Applications can be configured to generate an interrupt signal Compensated compassing by inertial wakeup/free-fall events, as well as by the position of the device itself. Thresholds and Map rotation timing of interrupt generators are programmable Position detection on the fly by the end user. Magnetic and Motion-activated functions accelerometer parts can be enabled or put in power-down mode separately. The LSM303DLH Free-fall detection is available in a plastic land grid array (LGA) Intelligent power-saving for handheld devices package, and is guaranteed to operate over an Display orientation extended temperature range from -30 to +85 C. Gaming and virtual reality input devices Table 1. Device summary Impact recognition and logging Temp. Vibration monitoring and compensation Part number Package Packing range C LSM303DLH Tray Description -30 to +85 LGA-28 Tape and The LSM303DLH is a system-in-package LSM303DLHTR reel featuring a 3D digital linear acceleration sensor December 2009 Doc ID 16941 Rev 1 1/47 www.st.com 47 Obsolete Product(s) - Obsolete Product(s)Contents LSM303DLH Contents 1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2 Module specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.1 Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.3 Communication interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3.1 Accelerometer sensor I2C - inter IC control interface . . . . . . . . . . . . . . 14 2.3.2 Magnetic field sensing I2C digital interface . . . . . . . . . . . . . . . . . . . . . . 15 3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.1 Linear acceleration sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.2 Zero-g level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.3 Sleep-to-wakeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5 Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5.1 Factory calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5.2 Linear acceleration self-test operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5.3 Magnetic self-test operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 6.1 External capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.2 Pull-up resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.3 Digital interface power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.4 Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.5 High current wiring effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7 Digital interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7.1 I2C serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7.1.1 I2C operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2/47 Doc ID 16941 Rev 1 Obsolete Product(s) - Obsolete Product(s)