TDK Corporation is further extending its InvenSense SmartAutomotive MEMS sensor family with the IAM-20685HP and IAM-20689 second-generation six-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 can achieve ASIL B on all technical safety requirements. It was specifically developed to enhance ADAS applications. 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 requires high and stable IMU performance over a wide temperature range.
Compared to the IAM-20685HP, the IAM-20689 is a safety-focused six-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.
IAM-20685HP and IAM-20689 take advantage of TDK’s proprietary MEMS fabrication technology that offers improved reliability compared to other MEMS fabrication technologies available. They have both been developed as a Safety Element out of Context (SEooC) and are automotive qualified according to AEC-Q100 grade 1.
Both sensors are available in a small 4.5 x 4.5 x 1.1 mm3 QFN package with wettable flanks options that allow visual inspection at the end of the assembly line.
Filed Under: Sensors, Technology News