SCA830-D05

SCA830-D05 VTI Automotive Digital Accelerometer Platform Data Sheet SCA830-D05 SINGLE AXIS ACCELEROMETER WITH DIGITAL SPI INTERFACE Features • • • • • • • • • • • 3.3V supply voltage ±2g measurement range Single axis measurement in Y direction ±70mg offset accuracy over temp range SPI digital interface Enhanced self diagnostics features Size 7.0 x 3.3 x 8.6 mm (w x h x l) Qualified according to the 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 The SCA830-D05 is targeted at automotive applications. Typical applications include • Electronic Stability Control (ESC) • Electronic Parking Brake (EPB) • Hill Start Aid (HSA) • Roll Over • Suspension • Inclination • Industrial applications General Description The SCA830-D05 is a single axis accelerometer component based on VTI's capacitive 3D-MEMS technology. The component integrates high accuracy micromechanical acceleration sensing together with a flexible SPI digital interface. The component's Dual Flat Lead (DFL) housing guarantees robust operation over the product lifetime. The SCA830-D05 is designed, manufactured and tested for the high stability, reliability and quality requirements of automotive applications. The accelerometer has an extremely stable output over wide ranges of temperature, humidity and mechanical noise. The component is qualified according to the AEC-Q100 standard and has several advanced self diagnostics features. The DFL housing is suitable for SMD mounting and the component is compatible with the RoHS and ELV directives. The SCA830-D05 is a part of VTI's digital accelerometer family and is compatible with single axis accelerometers (SCA8X0 Series) and other multi axis accelerometers (SCA21X0 Series and SCA3100 Series). VTI Technologies Oy www.vti.fi PRELIMINARY - Subject to changes Doc.nr. 82 701 00 A 1/3 Rev.A SCA830-D05 VTI Automotive Digital Accelerometer Platform Performance Characteristics Vdd=3.3 V and ambient temperature unless otherwise specified. Parameter Condition Min 3.0 Active mode Power down mode Measurement axis Y Temperature range -40 ... +125 °C Temperature range -40 ... +125 °C 12 bit output +1g ... -1g range C) Typ 5 Analog and digital Vdd Current consumption Measurement range Operating temperature Offset total error A) Offset temperature dependency B) Sensitivity Total sensitivity error Linearity error Cross-Axis sensitivity Zero acceleration output Amplitude response Noise Power on setup time Output data rate Output load SPI clock rate ESD protection Moisture sensitivity level Mechanical shock A) -2 -40 -100 -70 900 -4 -20 0 30 Max 3.6 6.3 0.1 2 125 100 70 Units V mA mA g °C mg mg Count/g % FS mg % Counts Hz mg RMS s Hz pF MHz kV kV g 4 20 ±3.5 80 5 0.1 2000 50 8 2 1 20 000 2-complement -3dB frequency Human Body Model Charge Device Model IPC/JEDEC J-STD-020C, Level 3 B) C) Includes offset deviation from 0g value including calibration error and drift over lifetime, temperature and supply voltage. Offset drift due to temperature. Value is a relative value and has not to be centered to zero. See Figure 3 MOSI MISO SPI C/V A/D SCK Signal conditioning and filtering CSB Temp sensor PWM Self diagnostics PWM Figure 1. SCA830-D05 Block diagram VTI Technologies Oy www.vti.fi PRELIMINARY- Subject to changes Doc. Nr. 82 701 00 A 2/3 Rev.A SCA830-D05 VTI Automotive Digital Accelerometer Platform -Y Y PIN 1 PIN 1 Figure 2. Accelerometer measuring directions Zero acceleration output position Figure 3. Housing dimensions Document Change Control Rev. A Date 07.10.06 Change Description Preliminary version VTI Technologies Oy www.vti.fi PRELIMINARY- Subject to changes Doc. Nr. 82 701 00 A 3/3 Rev.A