MMA6231Q MOTOROLA | Alldatasheet
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L o w N o i s e L o w C o s t L o w P o w e r 2.7 V to 3.6 V Operation 6mm x 6mm x 1.98 mm QFN Integral Signal Conditioning with Low Pass Filter Linear Output Ratiometric Performance S e l f - T e s t Robust Design, High Shocks Survivability Typical Applications Pedometer Appliance Control Impact Monitoring Vibration Monitoring and Recording Position & Motion Sensing Freefall Detection Smart Portable Electronics
ORDERING INFORMATION
Response IDD Case No. Package MMA6231Q 300 Hz 1.2 mA 1477-01 QFN-16, Tube MMA6231QR2 300 Hz 1.2 mA 1477-01 QFN-16,Tape & Reel MMA6233Q 900 Hz 2.2 mA 1477-01 QFN-16, Tube MMA6233QR2 900 Hz 2.2 mA 1477-01 QFN-16,Tape & Reel MMA6230Q Series: X-Y AXIS SENSITIVITY MICROMACHINED ACCELEROMETER ± 10 g Bottom View N/C N/C VDD VSS N/C N/C N/C N/C N/C N/C N/C N/C 16 15 14 756 8 ST XOUT YOUT N/C Pin Assignment MMA6231Q M M A 6 2 3 3 Q
16 LEAD QFN
iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
Figure 1. Simplified Accelerometer Functional Block Diagram
2000 V ESD protection circuitry, extra precaution must be
can alter the performance or cause failure of the chip. discharges which may be detrimental to its performance.
- Dropped onto concrete surface from any axis
Freescale Semiconductor, Inc.
Motorola Sensor Device Data MMA6200 Series Operating Characteristics Unless otherwise noted: -20°C < TA < 85°C, 3.0 V < VDD < 3.6 V, Acceleration = 0g, Loaded output1 Characteristic Symbol Min Typ Max Unit Operating Range2 Supply Voltage3 VDD 2.7 3.3 3.6 V Supply Current MMA6231Q IDD 1 . 2 1 . 5 m A MMA6233Q IDD 2 . 2 3 . 0 m A Operating Temperature Range TA -20 +85 °C Acceleration Range gFS 1 0 g Output Signal Zero g (TA = 25°C, VDD = 3.3 V)4 VOFF 1.485 1.65 1.815 V Zero g VOFF, TA 2 . 0 m g / ° C Sensitivity (TA = 25°C, VDD = 3.3 V) S 111 120 129 mV/g Sensitivity S, TA 0.015 %/°C Bandwidth Response MMA6231Q f_3dB 300 Hz MMA6233Q f_3dB 900 Hz Nonlinearity NLOUT -1.0 +1.0 % FSO Noise MMA6231Q RMS (0.1 Hz 1 kHz) nRMS 0 . 7 m V r m s MMA6233Q RMS (0.1 Hz 1 kHz) nRMS 0 . 6 Power Spectral Density RMS (0.1 Hz 1 kHz) MMA6231Q nPSD 50 ug/ √Hz MMA6233Q nPSD 3 0 Self-Test Output Response gST 2.0 g Input Low VIL 0.3 V DD V Input High VIH 0.7 VDD V DD V Pull-Down Resistance5 RPO 43 57 71 k Ω Response Time6 tST 2 . 0 m s Output Stage Performance Full-Scale Output Range (IOUT = 200 µA) VFSO VSS +0.25 V DD -0.25 V Capacitive Load Drive7 CL 100 pF Output Impedance ZO 50 300 Ω Power-Up Response Time MMA6231Q tRESPONSE 2 . 0 m s MMA6233Q tRESPONSE 0 . 7 m s Mechanical Characteristics Transverse Sensitivity8 VZX, YX, ZY -5.0 +5.0 % FSO NOTES: 1. For a loaded output, the measurements are observed after an RC filter consisting of a 1.0 k Ω resistor and a 0.1 µF capacitor to ground. 2. These limits define the range of operation for which the part will meet specification. 3. Within the supply range of 2.7 and 3.6 V, the device operates as a fully calibrated linear accelerometer. Beyond these supply limits the device may operate as a linear device but is not guaranteed to be in calibration. 4. The device can measure both + and - acceleration. With no input acceleration the output is at midsupply. For positive acceler ation the output will increase above VDD/2. For negative acceleration, the output will decrease below VDD/2. 5. The digital input pin has an internal pull-down resistance to prevent inadvertent self-test initiation due to external board level leakages. 6. Time for the output to reach 90% of its final value after a self-test is initiate. 7. Preserves phase margin (60°) to guarantee output amplifier stability. 8. A measure of the devices ability to reject an acceleration applied 90° from the true axis of sensitivity. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
chined integrated-circuit accelerometer. ASIC contained in a single integrated circuit package. level using a bulk micromachined cap wafer. tem to an acceleration (Figure 2). tance is a measure of acceleration. is ratiometric and proportional to acceleration. Figure 2. Simplified Transducer Physical Model and capacitors) to set the cut-off frequency. the accelerometer at any time before or after installation. A fourth plate is used in the g-cell as a self-test plate. tronic sections of the accelerometer are functioning. Freescale Semiconductor, Inc.
Figure 3. Pinout Description Figure 4. Accelerometer with Recommended Connection Figure 5. Recommend PCB Layout for Interfacing
- Use 0.1 µF capacitor on V DD to decouple the power
- Physical coupling distance of the accelerometer to
the microcontroller should be minimal.
- Flag underneath package is connected to ground.
- Place a ground plane beneath the accelerometer to
to all of the open ended terminals shown in Figure 5.
- Use an RC filter with 1.0 k Ω and 0.1 µF on the
(from the switched capacitor filter circuit).
- PCB layout of power and ground should not couple
- Accelerometer and microcontroller should not be a
- A/D sampling rate and any external power supply
will prevent aliasing errors. 1, 5 - 7, 13, 16 N/C No internal connection. 4V SS The power supply ground. 2, 8 - 11 N/C Used for factory trim.
12 ST Logic input pin used to initiate
Freescale Semiconductor, Inc.
MMA6200 Series Motorola Sensor Device Data Direction of Earth's gravity field.* * When positioned as shown, the Earth's gravity will result in a positive 1g output Top View XOUT @ 0g = 1.65V YOUT @ -1g = 0.85V XOUT @ -1g = 0.85V YOUT @ 0g = 1.65V XOUT @ 0g = 1.65V YOUT @ +1g = 2.45V XOUT @ +1g = 2.45V YOUT @ 0g = 1.65V DYNAMIC ACCELERATION STATIC ACCELERATION 16-Pin QFN Package +X -X 56 8 16 15 14 13 Top View XOUT @ +1g = 1.77V YOUT @ 0g = 1.65V XOUT @ 0g = 1.65V YOUT @ -1g = 1.53V XOUT @ -1g = 1.53V YOUT @ 0g = 1.65V XOUT @ 0g = 1.65V YOUT @ +1g = 1.77V Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
Motorola Sensor Device Data MMA6200 Series 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 packag- es must be the correct size to ensure proper solder con- nection 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. CASE 1477-01 ISSUE O NOTES: ALL DIMENSIONS ARE IN MILLIMETERS. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. THIS DIMENSION APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25MM AND 0.30MM FROM TERMINAL TIP. THIS DIMENSION REPRESENTS TERMINAL FULL BACK FROM PACKAGE EDGE UP TO 0.1MM IS ACCEPTABLE. COPLANARITY APPLIES TO THE EXPOSED HEAT SLUG AS WELL AS THE TERMINAL. RADIUS ON TERMINAL IS OPTIONAL. (45˚)16X 0.1 DETAIL M PIN 1 INDEX AREA B C0.15 C0.15 G M M (0.203) C0.1 C0.08 C SEATING PLANE DETAIL G VIEW ROTATED 90˚ CLOCKWISE (1) (0.5) (0.102) 1.98+0.1 EXPOSED DIE ATTACH PAD 12X M0.1 C M0.05 C A B 16X 0.63 0.43 C0.1 A B VIEW M-M DETAIL M PIN 1 INDEX C0.1 A B 16X 0.60 0.40 4.24 4.04 4.24 4.04 0.5 Pin 1 ID (non metallic) 1 4 12 9 5 8 16 13 Solder areas 0.50 0.55 1.00 4.25 6.0 6.0 Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...
HOW TO REACH US: USA/EUROPE/LOCATIONS NOT LISTED: JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center Motorola Literature Distribution 3-20-1 Minami-Azabu. Minato-ku, Tokyo 106-8573, Japan P.O. Box 5405, Denver, Colorado 80217 81-3-3440-3569 1-800-521-6274 or 480-768-2130 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong 852-26668334 HOME PAGE: http://motorola.com/semiconductors MMA6231Q Information in this document is provided solely to enable system and software implementers to use Motorola products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the informa tion in this document. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, represen tation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may var y over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as compon ents in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and di stributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of persona l injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufa cture of the part. MOTOROLA and the Stylized M Logo are registered in the US Patent and Trademark Office. All other product or service names are t he property of their respective owners. © Motorola, Inc. 2004 Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...