SCA3100-D04 Data Sheet SCA3100-D04 3-AXIS HIGH PERFORMANCE ACCELEROMETER WITH DIGITAL SPI INTERFACE Features • • • • • • • • • • • 3.3V supply voltage ±2 g measurement range 3-axis measurement XYZ directions ±30mg offset stability over temp range SPI digital interface Extensive self diagnostics features Size 7.6 x 3.3 x 8.6 mm (w x h x l) Qualified according to AEC-Q100 standard Package, pin-out and SPI protocol compatible with VTI digital accelerometer product family RoHS compliant Dual Flat Lead (DFL) plastic package suitable for lead free soldering process and SMD mounting Proven capacitive 3D-MEMS technology Applications SCA3100-D04 is targeted to applications with high stability requirements. Typical applications include • Hill Start Aid (HSA) • Electronic Parking Brake (EPB) • Roll Over detection • Suspension control • Inclinometers • Motion and position measurements General Description SCA3100-D04 is a high performance three axis accelerometer component based on VTI capacitive 3D-MEMS technology. The component integrates high accuracy micromechanical acceleration sensing together with a flexible SPI digital interface. Dual Flat Lead (DFL) housing guarantees reliable operation over product lifetime. SCA3100-D04 is designed, manufactured and tested for high stability, reliability and quality requirements of automotive applications. The accelerometer has extremely stable output over wide range of temperature, humidity and vibration. The component is qualified against AEC-Q100 standard and has several advanced self diagnostics features. The DFL housing is suitable for SMD mounting and the component is compatible with RoHS and ELV directives. SCA3100-D04 is a part of VTI digital accelerometer family and fully compatible with single axis accelerometers (SCA800 series) and other multi axis accelerometers (SCA2100 series and SCA3100 series). VTI Technologies Oy www.vti.fi 1/6 Doc.nr. 82 688 00 D SCA3100-D04 Performance Characteristics Vdd=3.3 V and ambient temperature unless otherwise specified. Parameter Condition Min 3.0 Analog and digital Vdd Current consumption Active mode Power down mode Measurement axes (XYZ) Measurement range Operating temperature Offset total error B) Offset calibration error C) Offset temperature drift Sensitivity Total sensitivity error Sensitivity calibration error Sensitivity temperature drift Linearity error Cross-Axis sensitivity Zero acceleration output Amplitude response F) Noise Power on setup time Output data rate Output load SPI clock rate ESD protection Moisture sensitivity level Mechanical shock ID register value A) B) C) D) E) F) Typ A) 3 0.12 -2 -40 -70 -40 -30 D) Temperature range -40 ... +125 °C @25 °C ±5°C Temperature range -40 ... +125 °C 12 bit output Between ±3° Temperature range -40 ... +125 °C @25 °C ±5°C Temperature range -40 ... +125 °C +1g ... -1g range ±16 ±18 E) 900 0.0637 -4 Max 3.6 5 50 8 2 1 Units V mA mA g °C mg mg mg Count/g °/Count % FS % FS % FS mg % Counts Hz mg RMS s Hz pF MHz kV kV 20 000 g 2 125 70 40 30 D) 4 ±0.5 ±0.8 -20 -3.5 2-complement -3dB frequency ±2.5 0 30 20 +3.5 55 5 0.1 2000 Human Body Model Charge Device Model IPC/JEDEC J-STD-020C, Level 3 Customer readable ID register (27hex) C1 Typical ± values are ±3 sigma variation limits from validation test population. Includes offset deviation from 0g value including calibration error and drift over lifetime, temperature and supply voltage. Includes offset deviation from 0g value including calibration error and drift over lifetime. Offset drift due to temperature. Value is a relative value and has not been centered to 0g. Error defined as maximum change of offset in temperature range. Offset (max)-Offset Min). 100% tested in production. Biggest change of output from RT value due temperature. See figure 4. C/V Oscillator & clock Reference Analog calibration & ADC NonVolatile Memory DEMUX 1:4 Lowpass Filter Decimation Lowpass Filter Decimation Lowpass Filter Decimation Lowpass Filter Decimation Temperature sensor Continuous self test Coordinate Mapping and Calibration SCK SPI i/f MISO MOSI CSB Start-up self test Figure 1. SCA3100-D04 Block diagram VTI Technologies Oy www.vti.fi 2/6 Doc. Nr. 82 688 00 D SCA3100-D04 Typical Performance characteristics -25 -20 -15 -10 -5 0 5 10 15 Offset [mg] Z axis Offset calibration error Y axis Offset calibration error 20 25 30 60 55 50 45 40 35 30 25 20 15 10 5 0 Percent of parts[%] Percent of parts[%] Percent of parts[%] X axis Offset calibration error 60 55 50 45 40 35 30 25 20 15 10 5 0 -25 -25 35 60 55 50 45 40 35 30 25 20 15 10 5 0 -20 -15 -10 -5 0 5 10 15 20 25 30 -20 -15 -10 -5 Temperature dependency of X axis offset 15 20 25 30 35 o -40 C…+125 C 15 5 +3 sigma 0 Average 5 30 55 80 105 130 -5 -3 sigma -10 Percent of parts[%] 30 10 Offset[mg] 10 X axis Offset drift at temperature range o -20 5 Offset [mg] 20 -45 0 35 Offset [mg] 25 20 15 10 5 -15 0 -30 -20 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 20 25 30 Offset drift [mg] o Tem p [ C] Y axis Offset drift at temperature range Temperature dependency of Y axis offset o o -40 C…+125 C 15 30 10 25 5 +3 sigma Average 0 -45 -20 -5 5 30 55 80 105 130 -3 sigma -10 Percent of parts[%] Offset[mg] 20 20 15 10 5 -15 0 -20 -30 -25 -20 -15 -10 -5 0 5 10 15 Offset drift [mg] Tem p [ oC] Temperature dependency of Z axis offset Z axis Offset drift at temperature range o o -40 C…+125 C 20 30 15 Offset[mg] 5 +3 sigma 0 -45 -20 -5 Average 5 30 55 -10 -15 80 105 130 -3 sigma Percent of parts[%] 25 10 20 15 10 5 0 -20 -30 Tem p [oC] VTI Technologies Oy www.vti.fi -25 -20 -15 -10 -5 0 5 10 15 20 25 30 Offset drift [mg] 3/6 Doc. Nr. 82 688 00 D SCA3100-D04 X axis Sensitivity drift at temperature range o X axis Sensitivity at 25 C o o 60 55 50 45 40 35 30 25 20 15 10 5 0 Percent of parts[%] Percent of parts[%] -40 C…+125 C 893 894 895 896 897 898 899 900 901 902 50 45 40 35 30 25 20 15 10 5 0 903 -0.8 -0.7 -0.6 -0.5 Sensitivity [LSB/g] -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 Sensitivity error [% FS] o Y axis Sensitivity drift at temperature range Y axis Sensitivity at 25 C o o 60 55 50 45 40 35 30 25 20 15 10 5 0 Percent of parts[%] Percent of parts[%] -40 C…+125 C 893 894 895 896 897 898 899 900 901 902 903 50 45 40 35 30 25 20 15 10 5 0 -0.8 -0.7 -0.6 Sensitivity [LSB/g] -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 Sensitivity error [% FS] o Z axis Sensitivity drift at temperature range Z axis Sensitivity at 25 C o o 55 50 45 40 35 30 25 20 15 10 5 0 Percent of parts[%] Percent of parts[%] -40 C…+125 C 893 894 895 896 897 898 899 900 901 902 903 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 Sensitivity error [% FS] Sensitivity [LSB/g] VTI Technologies Oy www.vti.fi 50 45 40 35 30 25 20 15 10 5 0 4/6 Doc. Nr. 82 688 00 D SCA3100-D04 Measument directions Figure 1. Accelerometer measuring directions Housing dimensions Figure 2. Housing dimensions Frequency response Figure 3. Frequency response curves VTI Technologies Oy www.vti.fi 5/6 Doc. Nr. 82 688 00 D SCA3100-D04 Contact Information Finland (head office) VTI Technologies Oy P.O. Box 27 Myllynkivenkuja 6 FI-01621 Vantaa Finland Tel. +358 9 879 181 Fax +358 9 8791 8791 E-mail: [email protected] Germany VTI Technologies Oy Branch Office Frankfurt Rennbahnstrasse 72-74 D-60528 Frankfurt am Main, Germany Tel. +49 69 6786 880 Fax +49 69 6786 8829 E-mail: [email protected] Japan Akebono Brake Industry Co.,Ltd. 5-4-71 Higashi, Hanyu-city Saitama Pref., 348-8501 Japan Tel. +81 48 560 1470 Fax +81 48 560 1469 www.akebono-brake.co.jp E-mail: [email protected] China VTI Technologies Shanghai Office 6th floor, Room 618 780 Cailun Lu Pudong New Area 201203 Shanghai P.R. China Tel. +86 21 5132 0418 or +86 21 5132 0400 *112 Fax +86 21 513 20 416 E-mail: [email protected] VTI Technologies Oy www.vti.fi USA VTI Technologies, Inc. One Parklane Blvd. Suite 804 - East Tower Dearborn, MI 48126 USA Tel. +1 313 425 0850 Fax +1 313 425 0860 E-mail [email protected] To find out your local sales representative visit www.vti.fi 6/6 Doc. Nr. 82 688 00 D