LSM303DLHC datasheet(17/42 Pages) STMICROELECTRONICS

Part #	LSM303DLHC

Description	Ultra compact high performance e-compass 3D accelerometer and 3D magnetometer module

PDF	42 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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17 / 42 page

LSM303DLHC

Application hints

Doc ID 018771 Rev 1

17/42

4.3

Digital interface power supply

This digital interface, dedicated to the linear acceleration and to the magnetic field signal, is

capable of operating with a standard power supply (Vdd) or using a dedicated power supply

(Vdd_IO).

4.4

Soldering information

The LGA package is compliant with the ECOPACK®, RoHS, and “Green” standard.

It is qualified for soldering heat resistance according to JEDEC J-STD-020.

Leave “Pin 1 Indicator” unconnected during soldering.

Land pattern and soldering recommendations are available at www.st.com/mems.

4.5

High current wiring effects

High current in the wiring and printed circuit trace can be culprits in causing errors in

magnetic field measurements for compassing.

Conductor generated magnetic fields add to the Earth’s magnetic field, causing errors in

compass heading computation.

Keep currents higher than 10 mA a few millimeters further away from the sensor IC.

LSM303DLHC Datasheet(PDF) 17 Page - STMicroelectronics