TDK presents second-generation 6-axis IMUs for advanced driver assistance and safety applications

TDK Corporation further extends its InvenSense SmartAutomotive™ MEMS sensor family with the IAM-20685HP and IAM-20689 second generation 6-axis IMUs for automotive safety applications. Both devices deliver reliable motion data for decision-making algorithms and accurately detect vehicle dynamics in real-time to enhance advanced driver assistance (ADAS) and safety applications, which require higher levels of functional safety up to ASIL D. Mass production of IAM-20685HP and IAM-20689 has started, and samples are already available.

IAM-20685HP is capable of achieving ASIL B on all technical safety requirements. It was specifically developed to enhance ADAS applications, e.g. to increase the driver’s experience while driving or parking. With its compact size and an operating temperature of up to 125 °C, IAM-20685HP is well suited for ADAS positioning and vision systems. Furthermore, it can be used in compact modules where high computational power combined with a small size require high and stable IMU performance over a wide temperature range.

Compared to the IAM-20685HP, the IAM-20689 is a safety-focused 6-axis IMU featuring extended embedded diagnostics. It has been designed to meet systems with requirements up to ASIL D and to elevate safety in critical automotive applications, like electronic/roll stability control (ESC/RSC) and drive-by-wire (DbW).

While both components differ in ASIL, they share the same core design, package size, and register map, and both incorporate a diverse set of safety mechanisms that ensure real-time monitoring of sensor parameters. Embedded diagnostics eliminate the need for an external software library to reach the according functional safety level. This allows customers to easily integrate IAM-20685HP and IAM-20689 into their applications (more info).