SCH1633-D01 (Murata automotive-grade 6-axis IMU, SCH1600 series)

SCH1633-D01: Standard factory-calibrated version; the same series also includes SCH1633-D05 (enhanced temperature-calibrated version)

 Function

A 6-axis inertial measurement unit integrating 3-axis gyroscope + 3-axis accelerometer. It captures vehicle attitude, angular velocity and acceleration for inertial dead reckoning. When GNSS signals are lost (in tunnels, underground parking garages), it continues outputting position and attitude data for autonomous driving / ADAS systems. It is the mainstream component for vehicle central IMU solutions.

Key Features

- 3-axis gyroscope: measures rotation, yaw, pitch and roll angular velocity

- 3-axis accelerometer: measures acceleration, tilt, shock and vibration

- Built-in axis orthogonality error calibration. No additional orthogonality calibration is required on the customer’s PCB, reducing development costs

- SafeSPI 2.0 interface, 20-bit high-precision output with timestamp and SYNC synchronization signal, facilitating time alignment with GNSS, cameras and radars

- Over 200 built-in internal monitoring signals and comprehensive self-diagnosis to meet functional safety requirements

Key Specifications

- Package: SOIC-24, dimension 11.8 ×13.4 ×2.9 mm

- Gyroscope full-scale range: ±62.5 / ±125 / ±300 °/s (software configurable)

- Primary accelerometer channel: ±8g; auxiliary accelerometer channel up to ±26g

- Gyro bias stability: down to 0.5°/h; angle random walk: 0.03°/√Hz

- Power supply: 3.0~3.6V; IO voltage: 1.7~3.6V

- Operating temperature: -40℃ ~ +110℃

- Automotive qualification: AEC-Q100 Grade 1; ISO 26262, ASIL-B+ (system integration can achieve ASIL D)

 Applications

✅ Automotive autonomous driving AD, ADAS, domain controller central IMU

✅ Inertial navigation, GNSS+IMU integrated positioning (GPS-denied scenarios such as tunnels and underground garages)

✅ Headlamp leveling, ADB adaptive driving beam

✅ Chassis attitude stability control, HUD attitude compensation, camera anti-shake calibration

✅ Also applicable to high-end industrial AGVs, surveying & mapping, high-precision drones (high-accuracy positioning models)