PSI5 Inertial Sensor - Freescale Semiconductor
Description
Freescale Semiconductor Data Sheet: Technical Data
Document Number: MMA51xxAKW Rev.
0, 09/2012
Xtrinsic MMA51xxAKW PSI5 Inertial Sensor
The MMA51xxAKW family, a SafeAssure solution, includes the PSI5 Version 1.
3 asynchronous mode compatible overdamped Z-axis satellite accelerometer.
Features
• ±60g to ±480g Full-Scale Range • 400 Hz, 3-Pole Low-Pass Filter • Single Pole, High-Pass Filter with Fast Startup and Output Rate Limiting • PSI5 Version 1.
3 Asynchronous Mode Compatible
– PSI5-A10P-228/1L Compatible – Baud Rate: 125 kBaud – 10-bit Data – Even Parity Error Detection • 16 μs Internal Sample Rate, with Interpolation to 1 μs • Pb-Free 16-Pin QFN, 6 by 6 Package • Qualified AECQ100, Revision G, Grade 1 (-40°C to +125°C) (http://www.
aecouncil.
com/)
Typical Applications
• Airbag Front and Side Crash Detection
Device MMA5106AKW MMA5112AKW MMA5124AKW MMA5148AKW MMA5106AKWR2 MMA5112AKWR2 MMA5124AKWR2 MMA5148AKWR2
ORDERING INFORMATION
Axis
Range
Package
Z ±60g
2086-01
Z ±120g
2086-01
Z ±240g
2086-01
Z ±480g
2086-01
Z ±60g
2086-01
Z ±120g
2086-01
Z ±240g
2086-01
Z ±480g
2086-01
Shipping Tubes Tubes Tubes Tubes
Tape & Reel Tape & Reel Tape & Reel Tape & Reel
MMA51xxAKW
Bottom View
16-PIN QFN CASE 2086-01
Top View
VSSA NC TEST VBUF
16 15 14 13
VCC VSS IDATA VSS
1 2 3 4
17 567
12 VSSA 11 VREGA 10 CS
9 VREG 8
NC SLCK DOUT
DIN
PIN CONNECTIONS
© 2012 Freescale Semiconductor, Inc.
All rights reserved.
Application Diagram
C4 C5 C6
Note: Pin names and references may differ from PSI5 V1.
3 pin names and references
VVBVUBFUF
VCC
VREG
IDATA
MMA51xx
VREGA
CS SCLK DO
VSSA VSS
DI
R1 R2
C2 C3
VCE
C1
VSS
Ref Des
C1 C3 C2 C4, C5, C6 R1 R2
Type
Ceramic Ceramic Ceramic Ceramic General Purpose General Purpose
Figure 1.
Application Diagram
External Component Recommendations
Description
Purpose
2.
2 nF, 10%, 50V minimum, X7R
VCC Power Supply Decoupling and Signal Damping
470 pF, 10%, 50V minimum, X7R
IDATA Filtering and Signal Damping
15 ...
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