About us
Automotive inertial sensor
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.
Function safety compliance for automotive safety system (ISO26262)
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
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
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.
- Au Wire
- 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 | ← | |
