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MMA5224AKWR2 Dataheets PDF



Part Number MMA5224AKWR2
Manufacturers Freescale Semiconductor
Logo Freescale Semiconductor
Description PSI5 Inertial Sensor
Datasheet MMA5224AKWR2 DatasheetMMA5224AKWR2 Datasheet (PDF)

Freescale Semiconductor Data Sheet: Technical Data Document Number: MMA52xxAKW Rev. 0, 09/2012 Xtrinsic MMA52xxAKW PSI5 Inertial Sensor The MMA52xxAKW family, a SafeAssure solution, includes the PSI5 Version 1.3 asynchronous mode compatible overdamped X-axis satellite accelerometers. 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.

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Freescale Semiconductor Data Sheet: Technical Data Document Number: MMA52xxAKW Rev. 0, 09/2012 Xtrinsic MMA52xxAKW PSI5 Inertial Sensor The MMA52xxAKW family, a SafeAssure solution, includes the PSI5 Version 1.3 asynchronous mode compatible overdamped X-axis satellite accelerometers. 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 MMA5206AKW MMA5212AKW MMA5224AKW MMA5248AKW MMA5206AKWR2 MMA5212AKWR2 MMA5224AKWR2 MMA5248AKWR2 ORDERING INFORMATION Axis Range Package X 60g 2086-01 X 120g 2086-01 X 240g 2086-01 X 480g 2086-01 X 60g 2086-01 X 120g 2086-01 X 240g 2086-01 X 480g 2086-01 Shipping Tubes Tubes Tubes Tubes Tape & Reel Tape & Reel Tape & Reel Tape & Reel MMA52xxAKW 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 56 12 VSSA 11 VREGA 10 CS 9 VREG 78 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 nF, 10%, 50V minimum, X7R 1 μF, 10%, 10V minimum, X7R VCC Power Supply Decoupling Voltage Regulator Output Capacitor(s) 82Ω, 5%, 200 PPM 27Ω, 5%, 200 PPM VCC Filtering and Signal Damping IDATA Filtering and Signal Damping Device Orientation xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx X: 0g X: +1g X: 0g xxxxxxx xxxxxxx X: -1g X: 0g EARTH GROUND Figure 2. Device Orientation Diagram X: 0g MMA52xxAKW 2 Sensors Freescale Semiconductor, Inc. Internal Block Diagram VCC CS SCLK DIN DOUT SPI Buffer Voltage Regulator VBUF Reference VREF Voltage Digital Voltage Regulator VREG Analog Voltage Regulator VREGA VBUF Low Voltage Detection Control Logic OTP Array Sync Pulse Detection Programming Interface Serial Encoder Self-Test Interface g-cell VREG VREGA VREG ΣΔ Converter Control Status In Out DSP SINC Filter IIR LPF Compensation Offset Monitor HPF Figure 3. Block Diagram VBUF VREG VREGA VSSA VCC IDATA VSS Sensors Freescale Semiconductor, Inc. MMA52xxAKW 3 1 Pin Connections 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 Figure 4. Top View, 16-Pin QFN Package Table 1. Pin Description Pin Pin Name Formal Name Definition 1 VCC Supply This pin is connected to the PSI5 power and data line through a resistor and supplies power to the device. An external capacitor must be connected between this pin and VSS. Reference Figure 1. 2 VSS Digital GND This pin is the power supply return node for the digital circuitry. 3 IDATA Response Current This pin is connected to the PSI5 power and data line through a resistor and modulates the response current for PSI5 communication. Reference Figure 1. 4 VSS Digital GND This pin is the power supply return node for the digital circuitry. 5 NC Not Connected This pin must be left unconnected in the application. 6 SCLK SPI Clock This input pin provides the serial clock to the SPI port for test purposes. An internal pulldown device is connected to this pin. This pin must be grounded or left unconnected in the application. 7 DOUT SPI Data Out This pin functions as the serial data output from the SPI port for test purposes. This pin must be left unconnected in the application. 8 DIN SPI Data In This pin functions as the serial data input to the SPI port for test purposes. An internal pulldown device is connected to this pin. This pin must be grounded or left unconnected in the application. 9 VREG 10 CS Digital Supply Chip Select This pin is connected to the power supply for the internal digital circuitry. An external capacitor must be connected between this pin and VSS. Reference Figure 1. This input pin provides the chip select to the SPI port for test purposes. An internal pullup device is connected to this pin.This pin must be left unconnected in the application. 11 VREGA 12 VSSA Analog Supply Analog GND This pin is connected to the power supply for the internal analog circuitry. An external capac.


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