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Automotive inertial sensor

For Advanced Driver Assistance Systems (ADAS) and autonomous driving applications, the Panasonic 6DoF inertal sensor provides accurate and reliable acceleration and rotation rate data.

sensors 6-in-1 shadow

Features

This sensor contributes to advanced system such as ADAS (Advanced Driver Assistance Systems), autonomous driving, and more, in order to detect 6DoF data which are composed by 3 axis (forward and backward, left and right, up and down) of acceleration(Acc) and gyro data.

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Function safety compliance for automotive safety system (ISO26262)

sensors 6-in-1 functional-safety

Compatible with ASIL-D functional safety development:
This sensor complies with ISO26262 according to the user system safety level (ASIL: Automotive Safety Integrity Level), supports the construction of argument by providing necessary documents, and guarantees the quality for automotive applications.

Highly accurate 6DoF MEMS sensors on single die, improving system design flexibility

sensors 6-in-1 sensor chip-configuration

Orthogonality: ≦0.5° between Gyro and Acc axis
The misalignment between Acc and Gyro axis deteriorates data accuracy because Acc and Gyro sensors are comprised of the multiple chips in the conventional inertial sensor.

6in1 inertial sensor adapts one single chip solution in which all 6 axis of Acc and Gyro sit together.

And all 6 axis are orthogonal and enables high accuracy data in spite of the installation posture.

Compact and simple ECU system design

sensors 6-in-1 cross-sectional-view

6DoF one package: 4.5 x 4.5 x 1.1 mm
This sensor adapts electrostatic MEMS and encapsulates MEMS and ASIC by wafer level packaging to realize the world compact and low profile 6DoF inertial sensor.

This enables automotive ECU System to be simple and smaller.

  1. Au Wire
  2. Leadframe

Dimple processing contributes to improved mounting quality

Dimple processing enables soldering fillet visible at the side of lead terminals.

This can confirm each terminal soldering correctly to the substrate land by the fillet visible inspection.

Specifications

Item Specification 125°C version specifications
(under development)
Size (mm) 4.5x4.5x1.1
Operation temperature -40°C ~ +105°C -40°C ~ +125°C
Storage temperature -40°C ~ +105°C -40°C ~ +125°C
Operation voltage 3.3 ± 0.3V
Current consumption ≦ 10mA
Data interface SPI
Gyro Axis X, Y, Z
Zero point error ≦ ± 2.0dps
Scale factor error ≦ ± 3.0%
Full scale range ±300, ±150, ± 120, ±60, ±30 dps (Selectable)
Frequency response (-3dB) 10, 12.5, 27, 30, 46, 60 Hz ±30 dps (Selectable)
Cross axis sensitivity ≦ ± 2.0%
Output noise ≦ 0.1dps rms (60 Hz)
Orthogonality ≦ 0.5°
 
Acc Axis X, Y, Z
Zero point error ≦ ± 50mG (X, Y)
≦ ± 84mG (Z)
Scale factor error ≦ ± 3.0%
Full scale range ±16, ±8, ±2, ±1 G (Selectable)
Frequency response (-3dB) 10, 46, 60, 250, 300, 400 Hz (Selectable)
Cross axis sensitivity ≦ ± 2.0%
Output noise ≦ 4 mG rms
(LPF: 60Hz )
Orthogonality ≦ 0.5°

Reliability test condition (AEC-Q100 compliance)

Item Specification 125°C version specifications
(under development)
Temperature humidity bias (THB) 85°C / 85% RH / 3.6V / 1000h
High temperature storage life (HTSL) 125°C / 1000h 150°C / 1000h
High temperature operating life (HTOL) 105°C / 3.6V / 1000h 125°C / 3.6 V / 1000h
Temperature cycling (TC) -55°C ~ 125°C / 1000 cycles -55°C ~ 150°C / 1000 cycles
Mechanical shock (MS) 1500 G / 0.5ms / 5 times for each axis
Variable frequency vibration (VFV) 50 G / 20Hz ~ 2kHz / 4 times for each axis