SCA3100-D07 VTI Automotive Digital Accelerometer Platform Data Sheet SCA3100-D07 3-AXIS HIGH PERFORMANCE ACCELEROMETER WITH DIGITAL SPI INTERFACE Features Applications 3.3V supply voltage SCA3100-D07 is targeted to automotive applications 6 g measurement range with high stability requirements and vibration 3-axis measurement XYZ directions robustness. Typical applications include 70mg offset accuracy over temp range Electronic Stability Control (ESC) Internal temperature sensor Hill Start Aid (HSA) SPI digital interface Electronic Parking Brake (EPB) Enhanced self diagnostics features Roll Over Size 7.6 x 3.3 x 8.6 mm (w x h x l) Suspension Qualified according to AEC-Q100 standard Inclination Package, pin-out and SPI protocol compatible Integrated inertial measurement with VTI digital accelerometer product family Industrial applications RoHS compliant Dual Flat Lead (DFL) plastic package suitable for lead free soldering process and SMD mounting Proven capacitive 3D-MEMS technology General Description SCA3100-D07 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 of the component guarantees robust operation over the product lifetime. SCA3100-D07 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 mechanical noise. 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-D07 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 1/3 Myllykivenkuja 6 Doc.nr. 82 871 00 C P.O. Box 27 FI-01621 Vantaa www.vti.fi SCA3100-D07 Performance Characteristics Vdd=3.3 V and ambient temperature unless otherwise specified. Parameter Condition Min Typ Max Units Analog and digital Vdd 3.0 3.6 V Current consumption Active mode 3 5 mA Power down mode 0.05 mA A) Measurement range Measurement axes (XYZ) -6 6 g B) Saturation warning limit Measurement axes (XYZ) 6.3 g Operating temperature -40 125 C C) Offset total error Temperature range -40 ... +125 C -100 100 mg RT 25 C 5C -50 50 mg Offset temperature Temperature range -40 ... +125 C -70 70 mg D) dependency Sensitivity 13 bit output 650 Count/g Total sensitivity error -3 3 % FS Linearity error +1g ... -1g range -20 20 mg +3g...+1g, -1g...-3g -40 40 mg +5g..+3g, -3g..-5g -60 60 mg Cross-Axis sensitivity 3.5 % Zero acceleration output 2-complement 0 Counts E) Amplitude response -3dB frequency 30 55 Hz Noise 10 mg RMS Power on setup time 0.1 s Output data rate 2000 Hz Output load 50 pF SPI clock rate 8 MHz ESD protection Human Body Model 2 kV Charged Device Model 1 kV Moisture sensitivity level IPC/JEDEC J-STD-020C, Level 3 Mechanical shock 20 000 g ID register value Customer readable ID register (27hex) C4 A) 2 2 2 Range defined as ball sphere 6g x y z B) See product family specification for details on SAT-bit handling C) Includes offset deviation from 0g value including calibration error and change over lifetime, temperature and supply voltage. D) Offset dependency due to temperature. Value is a relative value and has not to be centered to zero. E) See figure 4. SCK Lowpas s Decimation Coordinate Analog Filter Mapping calibration MISO C/V DE- SPI and & ADC MUX Decimation i/f Lowpas s Calibration 1:4 MOSI Filter CSB Lowpas s Decimation Filter Lowpass Decimation Filter Oscillator Non- Reference Temperature Continuous Start-up & Volatile self test sensor self test clock Memory Figure 1. SCA3100-D07 Block diagram VTI Technologies Oy 2/3 Myllykivenkuja 6 Doc. Nr. 82 871 00 C P.O. Box 27 FI-01621 Vantaa www.vti.fi