MMA7456LR1 Freescale, MMA7456LR1 Datasheet - Page 29

• Manufacturer Part Number: MMA7456LR1
• Manufacturer: Freescale

Specifications of MMA7456LR1

• Package Type: LGA
• Operating Supply Voltage (min): 2.4V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 3mm
• Product Height (mm): 1mm
• Product Length (mm): 5mm
• Mounting: Surface Mount
• Pin Count: 14
• Lead Free Status / RoHS Status: Compliant

MINIMUM RECOMMENDED FOOTPRINT FOR SURFACE MOUNTED APPLICATIONS
Surface mount board layout is a critical portion of the total design. The footprint for the surface mount packages must be the
correct size to ensure proper solder connection interface between the board and the package.
With the correct footprint, the packages will self-align when subjected to a solder reflow process. It is always recommended to
design boards with a solder mask layer to avoid bridging and shorting between solder pads.
SOLDERING AND MOUNTING GUIDELINES FOR THE LGA ACCELEROMETER SENSOR TO A PC BOARD
These guideline are for soldering and mounting the LGA package inertial sensors to printed circuit boards (PCBs). The purpose
is to minimize the stress on the package after board mounting. The MMA7456L digital output accelerometer uses the Land Grid
Array (LGA) package platform. This section describes suggested methods of soldering these devices to the PC board for con-
sumer applications.
Sensors
Freescale Semiconductor
Figure 18
Figure 18. Recommended PCB Land Pattern for the 5 x 3 mm LGA Package
shows the recommended PCB land pattern for the package.
MMA7456L
29